TW200821350A - Thermoplastic resin composition - Google Patents

Abstract

Disclosed is a thermoplastic resin composition having desired properties including transparency, mechanical strength and molding workability, particularly showing excellent thermal stability during molding, and having a UV-absorption capability. The thermoplastic resin composition comprises a thermoplastic resin having a UV-absorbable monomer unit and an antioxidant, wherein the antioxidant essentially comprises a phenyl(meth)acrylate represented by the general formula (1). (1) wherein R1's independently represent an alkyl group having 1 to 5 carbon atoms; R2's independently represent an alkyl group having 1 to 8 carbon atoms; R3 represents a hydrogen atom or an alkyl group having 1 to 8 carbon atoms; and R4 represents a hydrogen atom or a methyl group.

Description

200821350 IX. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to a thermoplastic resin composition. More specifically, it relates to a thermoplastic resin composition containing a thermoplastic resin having a UV absorbing monomer unit and a specific antioxidant. [Prior Art]

Acrylic resin represented by PMMA (polymethyl methacrylate), which has excellent optical properties with high light transmittance, and further balances mechanical strength, formability, and surface hardness. Therefore, it is widely used in automobiles. Transparent materials or optical related applications in parts or home appliances, various industrial parts, etc. If exposed to ultraviolet light, there is a problem that the transparency is lowered due to the change. Therefore, ultraviolet absorbers are generally added to the acrylic acid resin. However, since these ultraviolet absorbers have a low molecular weight, they are likely to leak (blee "ut" and, due to the treatment during the forming process, The amount of addition is reduced, the ultraviolet (four) capacity is reduced, and the manufacturing steps are contaminated, etc. In order to solve such problems, it has been known to attempt to separately polymerize or copolymerize the purple body (see Japanese: II.1) No. 00. But the general (four) acid resin, due to insufficient sufficiency, the resin itself has poor stability in the shape of high temperature, only the other trees I practice, layer or film. a thermoplastic resin having transparency and heat resistance, and a polymer having a thiol group and a vinegar group in the A and 2 sub-chains, which are internally reacted to obtain a vinegar-containing polymer (10). 5 200821350 Publication No. 2001-151814, Japanese Patent Publication No. 2〇〇2_1381〇6.). However, since these polymers have high heat resistance, the molding temperature is higher than that of a general acrylic resin, and it is known that bubbles or silver streaks are easily formed in the molded article. SUMMARY OF THE INVENTION When a resin is used in an optical crucible, it is desirable to reduce the disadvantage of the appearance of the film. Therefore, when the resin for copolymerizing the ultraviolet absorbing monomer is produced or the film is formed, the resin is removed by a polymer filter or Foreign matter in the resin composition _. However, in the case of filtration by a polymer filter, it is necessary to form at a relatively low temperature, and in this case, problems such as heat stability at the time of forming processing become remarkable. The present invention has been made in view of the above circumstances, and an object thereof is to provide a thermoplastic resin composition which has characteristics of transparency, mechanical strength, and moldability, and is excellent in heat stability during molding, and has ultraviolet absorption. ability. In the case, the results of the efforts of Mingren et al., focusing on the thermoplastic resin having ultraviolet-ray absorbing monomer units, have transparency and ultraviolet absorption ability, and found that when combined with specific antioxidants, the above problems can be completely solved. The present invention has been completed. Further, the ultraviolet absorbing monomer is generally bulky, and when it is copolymerized, the heat resistance is lowered, so that it is liable to be deteriorated during molding. In other words, in particular, when a bulky ultraviolet absorbing monomer is copolymerized, the thermal stability at the time of forming tends to be deteriorated. Further, if an ultraviolet absorber is added, since it is not embedded in the polymer skeleton, it is easy to cause evapotranization of the additive at the time of molding or contamination of the manufacturing steps. Here, the inventor of the present invention, 6 200821350, found that the above-mentioned problem can be solved by the antioxidant of B 4 inch 热 in the thermoplastic resin having the external absorbent monomer unit. That is, the present invention is a thermoplastic resin composition comprising: =I an externally absorbable monomer unit of a thermoplastic resin and an antioxidant, and the above-mentioned antimony oxide is represented by the following formula (1) (methyl group) ) phenyl acrylate is an essential component:

(In the formula (1), R1 is the same or different and represents an alkyl group having 1 to 5 carbon atoms. R2 is the same or different and represents an alkyl group having a carbon number of i to 8. R3 represents a hydrogen atom or a carbon number of 1 to 8. Alkyl. R4 represents a hydrogen atom or a methyl group). The invention is described in detail below. In the main instructions, "the above I, "the following _ sentence contains the number of letters. JL is" "The above meaning means not less than (the value and the age value of the thermoplastic resin composition of the invention, By containing a thermoplastic resin having a UV absorbing monomer unit and an antioxidant represented by the above formula ,), it is possible to have properties such as transparency, mechanical strength, and formability, and in particular, heat setting during molding. The thermoplastic resin composition which is excellent in the ultraviolet absorbing ability and has an ultraviolet absorbing ability. The antioxidant is preferably a phenyl (meth) acrylate represented by the above formula (1) as an essential component, and preferably the above formula ( 1) The phenyl acrylate represented by (A7 200821350) is mainly used, and other antioxidants can be contained as long as the effect of the present invention can be exerted. Hereinafter, the thermoplastic resin, the antioxidant, and other components will be described in detail. (Thermoplastic Resin) The thermoplastic resin of the present invention has a polymer structural unit constructed by polymerizing an ultraviolet absorbing monomer (repeated construction sheet) The ultraviolet absorbing monomer can be used as long as it is a monomer which exhibits ultraviolet absorbing property, and is preferably a polymerizable group introduced into a benzodiazepine derivative, a triazine, a biological or benzophenone derivative. Specific examples of the above ultraviolet absorbing monomer are, for example, 2_[2,-hydroxy, methacryloxy)ethylphenyl]_2Η•benzotriazole: 2_[2,_hydroxy = ·5,_ Methylpropoxy]phenyl]_2Η_benzotriazole, 2_[2,_hydroxyl, terttrial 5 methacryloxy]phenyl]·2Η_benzotrisole, by the following chemical formula A benzotriazole-based ultraviolet absorbing monomer such as UVA-5; a triazine derivative such as UVA-2, UVA-3 or UVA-4 represented by the following chemical formula: etc. These purple (iv) absorbing monomers may be used. It is also possible to use only two kinds of such materials, preferably a benzotriazole-based ultraviolet absorbing monomer or a triazine or a living organism. From the viewpoint of ultraviolet absorbing ability or coloring after forming, it is particularly preferable. -[2 _ _ _ _ 5 ' _ methacryl oxime oxy] ethyl phenyl] stupid and three sitting. These early bodies, due to a small amount of high UV absorption capacity, therefore, in the thermoplastic tree In the repeating unit derived from the monomer to a small amount of play n charge knife effect. Accordingly, the structural units (iv) can increase the amount of the thermoplastic resin other than the ultraviolet bit early and early closing body 8 can be applied

I 200821350: Thermoplastic resin having sufficient thermoplasticity for various applications such as a film. Since the number of structural units derived from the ultraviolet absorbing monomer is small, it is also suitable for various applications such as a thermoplastic resin and a film obtained from the resin. UVA-2 : . Also, can be full of color, can

9 200821350 UVA-5 :

The ytterbium content of the ultraviolet absorbing monomer contained in the thermoplastic resin of the present invention is preferably not more than 2 〇 in terms of the mass % of the thermoplastic resin. The content of the above ultraviolet absorbing monomer is 15 mass. The following form is also one of the preferred forms of the invention. More preferably, it is 15% by mass, more preferably 2 to 10% by mass, and particularly preferably 3 to 10% by mass. Ultraviolet absorption If the content of the monomer unit is less than 5% by mass, the ultraviolet absorbing ability of the obtained polymer may become unsatisfactory, which is not preferable. On the other hand, when the content ratio of the ultraviolet absorbing monomer unit exceeds 2 〇 mass%, the heat resistance of the obtained polymer becomes low, and it is economically unfavorable. The thermoplastic resin of the present invention is not particularly limited as long as it is a polymer structural unit having a structure in which the ultraviolet ray mouth - ^ /rg ^ ^ is given to σ. It is preferable that the glass transition temperature is 1 or more, and 12 or more is preferred. The thermoplastic resin of the present invention has a weight average molecular weight of preferably 3 GGGGG, more preferably 5 to 25 G. _ more preferably 1_卜2〇_ especially L is 50000~2〇〇0〇〇. : The weight of the polymer (thermoplastic resin) in the resin composition is, for example, by gel permeation chromatography. (Gpc) is a polystyrene member. For example, the above weight average molecular weight can be obtained by using the following conditions: (4) 10 200821350 (Tosoh)) A device name: Gpc system. Developing solvent: chloroform (manufactured by WACO Co., Ltd.) Standard sample; TSK standard polystyrene (made by Tosoh Corporation, PS_〇Hg〇mer kit-12 type) column constitutes the measuring side and the edge line (TSK) Guard column SuperH-H), separation column (TSK gel Super HM-M) 2 series reference side ··reference column (TSK gel Super H_RC) Flowing: 6ml/min Benming's thermoplastic resin, can still be used An acrylic resin having a UV absorbing monomer unit, a methacrylic resin, and other thermoplastics, preferably an acrylic resin and a thiol acrylic resin having a UV absorbing monomer unit. At least one of the groups consisting of resins. Among them, it is particularly preferable that the thermoplastic resin is a methacrylic resin. This can improve transparency or mechanical strength. The acrylic resin refers to a resin obtained by polymerizing a monomer component containing a propionic acid and/or a propionate as an essential component in (meth)acrylic acid or (fluorenyl)acrylic acid. It is preferably a resin obtained by polymerizing a monomer component mainly composed of acrylic acid and/or acrylate. The methacrylic resin is a resin obtained by polymerizing a monomer component of methyl acrylate and/or methacrylate as an essential component in (meth)acrylic acid or (meth) acrylate described later. Preferably, the resin is polymerized with a monomer component mainly composed of mercaptoacrylic acid and/or mercapto acrylate. Further, in the acrylic resin and the methacrylic resin, the main chain has a structure of 200821350, an internal destructurization structure, a glutaric anhydride structure, and a ruthenium dioxide structure selected from the substituted maleimide described later. When at least one constituent unit of the group consisting of the imine structures is contained, the structure of the polymer of the constituent units is preferably composed of the above (meth) acrylate as described above. Further, the thermoplastic resin of the present invention is preferably a lactone ring-containing polymer having a UV absorbing monomer unit, a maleic S! imine polymer, or a glutaric anhydride polymer from the viewpoint of heat resistance. And the pentane quinone imine type polymer may be used alone or in combination of two or more. (4) In the present invention, the thermoplastic resin to be used is at least one selected from the group consisting of an acrylic resin and a methyl acrylate resin having a UV absorbing monomer unit, and/or selected from At least one of a group consisting of an inner ring-containing polymer, a maleic imine-based polymer, a glutaric anhydride-based polymer, and a glutarimide-based polymer having a UV-absorbing monomer unit. The above-described maleated imine polymer is a constituent unit derived from n-substituted maleimide, such as phenylmaleimide, cyclohexylmaleimide or methylmaleimide. The polymer, the inner vinegar-containing polymer is a polymer having a lactone ring structure (preferably in a main skeleton or a main chain of a polymer) in a molecular chain, and the glutaric anhydride-based polymer has a molecular bond. A polymer of a glutaric acid needle structure, wherein the glutarylenediamine-based polymer is a polymer having a glutarylene imine structure in a molecular bond. / The above-mentioned inner vinegar ring-containing polymer, maleic imine-based polymer, glutaric liver-based polymer, glutarylene imide linear compound, preferably having the above-mentioned necessary constitution with such a polymer The unit 'is both in the form of a propionate tree, or a methyl acrylate 1_lipid. That is, 'the main chain has UV 12 200821350 monomer unit, and the 搂/, N-substituted maleic imine origin structure, lactone ring structure, 酴-酴早# Hawthorn-anhydride structure A preferred embodiment is an acrylic resin and/or a methacrylic acid ruthenium resin which is formed into an early position by the bismuth quinone imine structure. ', the thermoplastic resin of the shape, the polymer containing the lactone ring, especially the main chain having the lactone ring structure represented by the following general formula (7) is a good acrylic resin, and the main chain has a ring The heat resistance of the structure is particularly good. The primary bond has a lactone ring structure represented by the following formula (7), and is further among the above thermoplastic resins. From the viewpoint of difficulty in discoloration (yellowing) of the film, it is preferred to be composed of a polymer having a structure in which bismuth atoms do not contain ruthenium atoms. As described above, the thermoplastic resin of the present invention, in view of transparency, other optical properties (optical characteristics) of j, and formability, is a polymer having a ring structure, particularly preferably The polymerization of the inner vinegar ring is changed to σ, and it is preferred that the main chain has a lactone ring structure. Regarding the main chain = internal vinegar ring structure 'can be Α 4~8 tributary ring, but from the viewpoint of structural stability, it is better for 5 to 6 member rings, ... more 6 for 6 shells bad. In the case of the vinegar ring type 6-membered ring in the main chain, the lactone ring structure in the main chain has, for example, the structure shown in the following paragraph, or the structure shown in the Japanese Patent Publication No. 2,4,168,882. In the case of the polymer in which the main chain is introduced into the lactone ring structure, it is preferably a structure represented by the following formula (2) from the viewpoint of the polymerization yield. That is, the thermoplastic resin of the present invention preferably has a ring structure in the main chain, wherein in the thermoplastic resin composition of the present invention, the above-mentioned thermoplastic 13 200821350 resin preferably has a ring structure in the main chain. The ester ring structure is particularly preferably of the following formula (2):

(wherein R5, R6 and R7 are the same or different and represent a gas atom or an organic group having 1 to 20 carbon atoms.) represents a lactone ring structure. Thereby, when the thermoplastic resin composition of the present invention containing the plastic resin is molded, the disadvantage of foaming or silver streaking in the obtained molded article can be avoided. In an album, organic radicals (organic residues) may contain oxygen atoms. Alkyl groups such as fluorenyl, ethyl, propyl, etc. (9) alkyl; vinyl? An unsaturated aliphatic hydrocarbon group having 1 to 20 carbon atoms such as a propylene group; an aromatic hydrocarbon group having 1 to 2 carbon atoms such as a phenyl group or a naphthyl group; the above alkyl group, the above unsaturated hydrocarbon group, and the above-mentioned One or more hydrogen atoms are preferably a group substituted with a group; the alkyl group 'the above unsaturated hydrocarbon group and the hydrogen atom of the above aromatic hydrocarbon group are = j, preferably a group substituted with a carboxyl group; the above alkyl group, a saturated hydrocarbon group, a hydrogen atom of an aryl 4 fe group + i or more 'preferably a group substituted with a (4) group; the above-mentioned unsaturated group of the alkyl group L, the hydrogen atom of the above aromatic hydrocarbon group, i, preferably an ester The base of the base substitution. That is, an alkyl group having a carbon number, an unsaturated aliphatic hydrocarbon group of -SO, an aromatic hydrocarbon group having a carbon number of 1 to ,, = at least one of these groups, preferably substituted with a hydroxyl group, a carboxyl group, an ether group or an ester group The basis. The content ratio of the lactone ring structure of the polymer of 3 is preferably 5 to 9 〇 〇 ^ / ^ Berry 0 'more preferably 10 to 70 mass 〇 / 0, and more preferably 1 〇 ~ 6〇质量200821350 Μ meaning, especially “10 to 50% by mass. The proportion of the lactone ring structure represented by the above formula (2) is less than 5 mass%./〇, then heat resistance, solvent resistance, The inner vinegar-containing polymer may have a structure other than the structure represented by the above formula (2), and a structure other than the lactone ring structure represented by the above formula (2), for example, More preferably, it will be selected from the (meth) propionate, the trans-group-containing monomer, the unsaturated acid, and the following formula (3), which will be described later in the method for producing the lactone-containing cyclic polymer. A polymer constructed by polymerizing at least one of the monomers is a single structure (repeated unit).

(wherein R8 represents hydrogen; ^ + lacto is methyl, X represents a hydrogen atom, a carbon number of 20 alkyl, an aryl group, -〇Ac A, i-vr #

The Ac group _CN group, the _C〇_R9 group, or the _C_〇-Ri 〇 group Ac group represents an ethyl group, and R9|p1() _ represents a hydrogen atom or an organic group having a carbon number of 1-20. )

In the internal structure of the _'4 compound, the content ratio of the structure other than the internal vinegar ring structure represented by the above formula (7) is a polymer structural unit (repeated structural unit) formed by polymerizing (meth)acrylic acid vinegar. In the case, it is preferably 1 〇 to 95 mass. /. More preferably, it is 1 〇 to 90% by mass, and more preferably 4 〇 to 9 〇% by mass, particularly preferably 5 〇 to 9 〇 by mass, a polymer structural unit which is polymerized with a monomer containing a warp group (repeated In the case of the structural unit, it is more than "0~3G f%%, more preferably 〇~20% by mass, more preferably 〇~15% by mass, especially preferably 〇~1〇质量% 不不(四)" In the case of the structure unit (repeated structure 15 200821350 unit), it is preferable that 〇~3〇 is preferably 0-15. / Berry / 〇, more preferably 〇 ~ 20% by mass, 3 置 %, especially 〇 ~ expressed in the monomer polymerization construction, in. . In the case of the formula (3), it is preferable that the 0 Μ Α σ structure is 0 to 30% by mass in terms of the early position (repetitive structural unit). /. Especially good. 〜2: ❻~2°% by mass, more preferably The preferred embodiment of the above-mentioned thermoplastic resin having a ring structure is the same as the preferred form of the polymer of the above-mentioned 3 inner ring. The second method includes: the method for producing the vinegar ring polymer is not particularly limited, and preferably: fine: the step of obtaining a polymer having a base group and a vine group in the molecular chain (4) a to heat the polymer (4) to be charged Treatment to form the lactone ring: into the vinegar cyclization condensation reaction step in the polymer. In the π-polymerization step, by polymerizing a monomer component containing a monomer represented by the following formula (4), Ρ, 丨, Υ, and Υ are transferred to a polymer having a hydroxyl group and an ester group in the daughter chain. Gloomy m 1 Η

03〇EU (wherein R and Rl2' are the same or different and represent a hydrogen atom or an organic group having 1 to 20 carbon atoms.) A monomer represented by the above formula (4), for example, 2-(hydroxymethyl)acrylic acid Methyl ester, ethyl 2-(hydroxyindenyl)acrylate, isopropyl 2-(hydroxymethyl)acrylate, n-butyl 2-(hydroxymethyl)acrylate, tert-butyl 2-(hydroxyindenyl)acrylate, etc. . Among these, it is particularly preferable that 2-(hydroxyindenyl) decyl acrylate and 2-(hydroxyindenyl) acrylate have a high effect of improving heat resistance, and particularly preferably 200821350 is 2-(hydroxymethyl). )Methyl acrylate. The monomer represented by the above formula (4) may be used alone or in combination of two or more. In the monomer component to be subjected to the polymerization step, the content of the monomer represented by the above formula (4) is preferably 5 to 90% by mass, more preferably 1 to 7 % by mass, still more preferably 10 to 60% by mass. %, especially preferably 1〇~5〇% by mass. In the monomer component to be subjected to the polymerization step, if the content of the monomer represented by the above formula (4) is more than 9 〇 里 / 〇, the gelation occurs when the lactone is cyclized, or when the lactone is cyclized, or The obtained polymer lacks moldability, which is not preferable. The monomer component of the above polymerization step may contain a monomer other than the monomer represented by the above formula (4). Such a monomer is, for example, a monomer of a (meth) propylene oxime group, an unsaturated citric acid, or a monomer represented by the above formula (3). The monomer other than the monomer represented by the above formula (4) may be used alone or in combination of two or more. The (meth) acrylate is not particularly limited as long as it is a monomer other than the monomer represented by the above formula (4), and is, for example, methyl acrylate, φ propylene I acetyl, n-butyl acrylate, Acrylates such as isobutyl acrylate, tert-butyl acrylate, cyclohexyl acrylate, benzyl acrylate; methyl methacrylate, ethyl methacrylate, propyl methacrylate, methacrylic acid N-butyl acrylate, isobutyl methacrylate, butyl methacrylate, methyl propyl, oxime 襄 曰, methacrylic acid benzyl vinegar, etc., etc. Two or more kinds may be used in combination. Among these, in particular, from the viewpoint of heat resistance (excellent in vapor permeability), methyl methacrylate is preferred. In the case of using a (meth) acrylate other than the monomer represented by the above formula (4), in the polymerization step The content of the monomer component is preferably from 10 to 95% by mass, more preferably from 1 to 95% by mass, even more preferably from 40 to 90% by mass, in terms of the effect of the invention. The hydroxyl group-containing monomer is not particularly limited as long as it is a monomer other than the monomer represented by the above formula (4), and is, for example, α-hydroxymethylstyrene, α-pyridylethylstyrene, 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, etc., may be used alone or in combination of two or more. The use of a hydroxyl group-containing monomer other than the monomer represented by the above formula (4) In the monomer component to be used in the polymerization step, the content ratio thereof is preferably from 〇30 to 30 ❾/〇, more preferably from 〇2 to 〇% by mass, still more preferably 0 to 0 in terms of sufficiently exerting the effects of the present invention. 15% by mass, particularly preferably 0 to 1 〇 mass 0 / 〇. The above unsaturated carboxylic acid, for example, Ethyl acid, methacrylic acid, crotonic acid, α-substituted acrylic acid, α-substituted methacrylic acid, etc., and these may be used alone or in combination of two or more. In particular, the present invention is fully utilized. The acrylic acid or methacrylic acid is preferred from the viewpoint of the effect of the present invention. In the case of using the above-mentioned unsaturated repulsive acid, the monomer component for the polymerization step has a 'content ratio' which gives full play to the effects of the present invention, preferably 0 to 0. 30 mass 〇 / 〇, more preferably 0 to 20 mass " Berry / 〇 more preferably 0 to 15% by mass, especially preferably 〇 ~ 10 mass 〇 / 〇. The above formula (3) represents the monomer, Cardamethylstyrene, acrylonitrile, vinyl citrate, etc., which may be used only, etc., and it is preferred to sufficiently exert the α-methylstyrene of the present invention. For example, styrene, vinyl anthracene, vinyl Two or more kinds of the group of the group of the above-mentioned formula (3), in particular, in the case of the effect of the styrene and the monomer for the polymerization step, the case of the monomer represented by the above formula (3) 18 200821350 In terms of effect, it is better than 'a better quality 〇~1 5 in the composition' The content ratio is preferably from 0 to 30% by mass, more preferably from 〇2 to 2% by mass, particularly preferably from 0 to 1% by mass. The polymerization form having a hydroxyl group and an ester solvent The polymerization reaction of the component to obtain a polymer in the molecular bond group is preferably in a use state, and is particularly preferably a solution polymerization. The polymerization temperature and the polymerization time are determined according to the use of ^^^^m, the type of the early body, and the ratio of use. It is different, preferably the polymerization temperature 〇~15〇, the gentleman hits from the recognition σ day between 0.5~20 small...the more the polymerization temperature is 80~14rc, the polymerization time is wo. The polymerization is separated by solvent. In the middle, the person can use the "co-solvent" is not particularly limited, for example, can be used. A, D, Ethylbenzene, etc. Tian I s * * Λ 敎 敎 ; ; ; ; ; ; ; ; ; ;; The solvent may be used alone or in combination with an ether such as tetrahydrofuran or in combination of two or more. Also, = this special ·:, high, the final product containing the inner vinegar ring: deposits and exchanges, so it is better to have a boiling point of 5 〇 ~ 2 〇 (rc. 曰 士 应 ' ' 视 视A polymerization initiator may be added. The polymerization initiator is not particularly limited, for example, a third amylpentyl peroxyisophthalic acid vinegar, a second...ethylhexanoic acid vinegar, a third cumene, hydroperoxide a ^ / 3 ^ acetic acid vinegar, ammonia peroxidation ... 1 base benzene, peroxylated tert-butyl, peroxide, urethane, fa, phenyl benzoate, etc. organic 73⁄4 # 土弟二butylperoxide isopropyl 0曰4 organic peroxydicarbonate 2 hexacene carbonitrile 2, 2, _ even (isobutyronitrile 1, 1, azo double (ring, etc., can be used only) #月) 虱 虱 compound; Two or more kinds of polymerization initiators may be used in combination with hydrazine and seed.

The use of ϊ 适当 适当 口 口 口 口 之 19 19 19 19 19 19 19 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 x, molecular weight control of the polymer may use a chain transfer sheet such as an alkyl alkyl thiol such as butyl sulphate, octyl thiol or dodecyl thiol or a ct-stact ethylene dimer. In the polymerization, in order to suppress gelation of the reaction liquid, it is preferred to control so that the polymer concentration generated in the polymerization reaction mixture is 50% by mass or less. Specifically, when the concentration of the polymer produced in the polymerization mixture exceeds 50% by mass, it is preferred to control the polymerization solvent to be 5% by mass or less as appropriate in the polymerization reaction mixture. The concentration of the polymer of ft in the polymerization mixture is more preferably 45% by mass or less, and particularly preferably 4 Å. the following. Further, in the polymerization reaction polymer, when the concentration of the polymer is low, the productivity is lowered. Therefore, the degree of the polymer in the polymerization mixture is preferably 10% by mass or more, more preferably 2% by mass or more.

The polymerization solvent is appropriately added to the polymerization reaction mixture, and the polymerization solvent may be continuously added without particular limitation. The polymerization solvent may be added intermittently. By controlling the concentration of the polymer produced in the polymerization reaction mixture in this manner, the gelation of the reaction liquid can be more sufficiently suppressed, in particular, the internal chain ratio of the internal S is increased to improve the heat resistance*. In the case where the ratio of the base group to the vine group is increased, the gelation can be sufficiently suppressed. Addition: The polymerization solvent may be the same type of solvent as the solvent used in the initial charge of the polymerization reaction, or may be a different type of solvent, but when the polymerization reaction is carried out, the solvent is (4) _ (4). Also, the addition of the polymerization solvent can be only! The solvent ' may be a mixed solvent of two or more kinds. I In the polymerization mixture obtained at the end of the above polymerization step, "normally, the obtained polymer is still contained in a solvent, but it is not necessary to completely remove the solvent in 200821350, and the polymer is taken out in a solid state, preferably The lactone cyclization condensation step is successively introduced in a state containing a solvent. Further, if necessary, it may be taken out in a solid state, and then a solvent suitable for the lactone cyclization condensation step may be further added. The polymer obtained by the polymerization step is a polymer (a) having a hydroxyl group and a brewing group in the molecular chain, and the weight average molecular weight of the polymer (a) is preferably from 1,000 to 300,000, more preferably from 5,000 to 250,000, particularly preferably 10000~2〇〇〇〇〇, especially good is 50000~20000. The polymer obtained in the polymerization step is then subjected to a heat treatment to introduce a lactone ring structure into the polymer to form a polymer containing a lactone ring. The reaction for introducing the lactone ring structure into the polymer (a) is carried out by heating to cyclize the hydroxyl group and the ester group present in the molecular chain of the polymer (a) to form a lactone ring structure. Its cyclization condensation produces alcohol by-product. By forming a lactone ring structure in the molecular chain of the hydrate (in the main skeleton of the polymer), high heat resistance is imparted. When the reaction rate of the cyclization condensation reaction of the lactone ring structure is insufficient, the heat resistance cannot be sufficiently increased, and the condensation reaction occurs in the middle of the molding due to the heat treatment at the time of molding, and the alcohol produced may be contained in the molded article. Or it produces silver streaks, so it is not good. The inner vinegar-containing polymer obtained in the cyclization condensation step is preferably a lactone ring structure represented by the above formula (2). The method of heat-treating the polymer (4) is not particularly limited. For example, a known method can be carried out by mixing the solvent-containing polymerization reaction obtained in the polymerization step and directly performing heat treatment in the same state. Further, heat treatment can be carried out using a closed-loop catalyst as needed in the presence of a solvent. Further, heat treatment may be carried out using a vacuum apparatus for removing volatile components of 21 200821350, a heating furnace or a reaction apparatus equipped with a devolatilizer, an extruder having a devolatilizer, or the like. When the cyclization condensation reaction is carried out, other thermoplastic resins may be coexisted in addition to the polymer (a). Further, when performing a cyclization condensation reaction, as needed,

An esterification catalyst such as p-toluenesulfonic acid or a transesterification catalyst which is generally used as a catalyst for a cyclization condensation reaction, and an organic carboxylic acid such as acetic acid, propionic acid, benzoic acid, acrylic acid or mercaptoacrylic acid may be used as a catalyst. . Further, a basic compound, an organic carboxylate, a carbonate or the like can be used. In the case of using a basic compound, an organic carboxy sulfonium salt, a chlorate, or the like, it may be carried out as disclosed in JP-A-Open (10) or JP-A-61-21613G3. When the above-mentioned % polymerization is carried out, it is preferred to use an organic phosphorus compound as a catalyst. The case where the organic phosphorus compound is used as a catalyst can be carried out as in the tf mode of the Sakamotoji Institute of 20G1 151814. By using an organic glass compound as a catalyst, the cyclization condensation reaction rate can be increased, and at the same time, the color of the internal composition can be greatly reduced. Furthermore, by using organic, . The substance acts as a phase medium and can suppress the molecular weight drop (8) which may occur in the case of the devolatilization step described later, and can impart mechanical strength to the superior #. ^ The amount of the catalyst used in the deuteration condensation reaction is not particularly limited, and 疋 is preferably 0. 001 to 5 mass%, more renamed to 2·5 f^%, and more preferably the polymer (a). Jia is 〇.01~1% by mass, especially preferably 0.05, :!%. If the amount of catalyst used is less than 〇1% by mass, then cyclization (4), "the reaction rate is not improved enough, on the other hand, if it exceeds 5 mass. :: Yes: for the original coloring," Moreover, it is not preferable because the cross-linking of the polymer is inconspicuous. 22 200821350: The addition period is not particularly limited, and may be added during the reaction, added during the reaction, or added during both periods. The cyclization condensation reaction is carried out in the presence of a solvent and is preferably carried out in combination with a devolatilization step. In this case, for example, the form of the cyclization condensation anti-Kugentian whole-bringing step, and the cyclization are not included. The condensation reaction process is carried out by using the devolatilization step only in the part of the process, and is forced to devolatilize with the alcohol in the form of the sputum id id: to: Since it is removed, it is advantageous for the balance of the reaction to be generated as described above: the volatilization step is an alcohol produced by a cyclization condensation reaction in which a solvent or a residual monomer is added, and if necessary, a condition: The step of removing the treatment is carried out. When the residual volatile component in the resin is changed, the color is changed, and palladium is formed, and the phenomenon of good formation due to formation or graining is satisfied. The form of the above-mentioned % condensation reaction and the devolatilization step are used. The cleavage used in the use is not particularly limited 'but in order to make the present invention more effective: *!= 脱 与 与 心 心 心 心 心 心 心 心 心 二 二 二 二 二 二 二 二 二 二 二 二 二 二 二 二 二 二 二 二The machine is configured to arrange the ruts in series, and the extruder is formed by using a heat (four) device and a devolatilization groove or an exhaust port with an exhaust port. The early use of the heat exchanger and the detachment groove constitutes a detached shape. 'Reaction treatment temperature...~35吖 is in the range of 200~300°C. If the reaction treatment temperature is lower than 15〇, the soil dimerization reaction becomes insufficient, and there are more volatile components remaining—1%缩~'Right is higher than 350〇c 23 200821350, and there is a problem of coloring or decomposition. When using the above heat exchanger and the devolatilizer to form a devolatilization, the pressure during the reaction is '931~1 3ΉιΡρι ^7πη 1 L33hPa (700~lmmHg) range is better '798~66.5hPa When the pressure is less than 931 hPa, if the pressure is less than 931 hPa, if the problem is that the volatile component containing alcohol is likely to remain below 1.33 hPa, there is a problem that it is difficult to industrially implement it. In the case of a gas π extruder, the exhaust port may be i or a plurality of 'having a plurality of exhaust ports is preferred.

The shape of the venting machine is used, and the g portion of the table is 4, and the reaction temperature is preferably 150 to 3 thieves, more preferably _~. C. When the reaction treatment temperature is lower than we, the cyclization condensation reaction does not cause a large amount of residual volatile components. On the other hand, if the reaction treatment temperature is high & 35 (rc, the polymer obtained sometimes may be colored or decomposed. In the case of using the (iv) u extruder, the reaction treatment pressure is preferably in the range of QSWWhPaQOO~lmmHg), more preferably The range of (600~lOmmHg). If the pressure is higher than 93 lhPa (7 00mmHg), sometimes it will be a fare to my scholars. ^ At the same time, the valley will easily contain volatile components containing alcohol. On the other hand, if the reaction treatment pressure is lower than 〗% 331'331ιΡ&(1ιηιηΙΙ§), industrial implementation may become difficult. In addition, in the case of the entire cyclization condensation, the antimony, and the combination of the devolatilization step, as described later, the polymerization of the lactone ring which is paid by you under strict heat treatment conditions The physical properties of the material are degraded. Therefore, it is the use of the above-mentioned catalyst for the dealcoholization reaction. Under the mildest conditions, the field is like a corpse. ～ Γ 挤 Extrusion with the exhaust port Machine and so on. 24 200821350 Further, in the case where the entire cyclization condensation reaction is carried out in the form of a devolatilization step, it is preferred that the polymer (a) obtained in the polymerization step is introduced into the system of the condensation reaction device simultaneously with the solvent, but in this case, It is also necessary to pass the above-mentioned reaction device system such as an exhaust port extrusion machine. The devolatilization step may also be used not in the course of the entire cyclization condensation reaction, but only in the form of a partial process. For example, the apparatus for producing the polymer (a) is heated stepwise, and the cyclization condensation reaction is carried out to a certain extent in advance, followed by the cyclization condensation reaction in the devolatilization step and the completion of the reaction.

In the foregoing, in the form of a devolatilization step in the entire cyclization condensation reaction, for example, when the polymer (4) is heat-treated at a high temperature of 25 () t: or higher using a biaxial extruder, due to the difference in thermal history, Sometimes, in the cyclization: partial decomposition or the like occurs before the reaction occurs, so that the polycondensate containing the lactone ring has a physical property. Therefore, 'before the cyclization condensation reaction is carried out simultaneously with the devolatilization step', if the cyclization condensation reaction is carried out to a certain extent in advance, the latter half reaction condition can be alleviated, and the polymerization of the (tetra) ring can be suppressed (4) 'It is better. In a preferred embodiment, for example, the shape of the devolatilization step after the start of the dicyclic condensation reaction is started, that is, the radical and the S group of the molecular chain of the polymeric polymer (4) are present. Pre-cyclization condensation reaction 'to bring the cyclization condensation reaction rate up to a certain extent' Next, carry out the cyclization rectification at the same time and use the devolatilization step =; specifically, for example, pre-use the pin type reactor: the sub-in the T (1) the % condensation reaction is carried out until a certain degree of reaction rate is reached, and then 'by a reactor equipped with a devolatilizer, for example, a devolatilization consisting of a heat exchange 25 200821350 converter and a devolatilization tank, or A venting extruder or the like is provided to complete the cyclization condensation reaction. Especially in the case of this form, it is more preferable to have a catalyst for a cyclization condensation reaction. _ As described above, the cyclization and condensation reaction of the thiol group and the vine group present in the molecular chain of the polymer (4) obtained in the polymerization step are carried out in advance to increase the cyclization condensation reaction rate to some extent, followed by simultaneous devolatilization. The method of cyclization and enthalpy reaction in the step is a preferred embodiment of the polymer containing an internal vinegar ring in the present invention. According to this form, the glass transition temperature is higher, and the cyclization condensation reaction rate is further improved to obtain a (tetra) ring-containing polymer excellent in heat resistance. The reactor which can be used in the cyclization condensation reaction before the cyclization condensation reaction having the above-mentioned devolatilization step is not particularly limited, and may be, for example, a pressure cooker, a pot type reactor, a heat exchanger, and In addition, a devolatilizer or the like may be used, and an venting extruder suitable for simultaneous use of a devolatilization reaction may be used. The 媸μ reaction force of these reactors is still good, and the pot type reactor is particularly preferable. However, in the case of using the venting port to extrude the branching device, it is also possible to make the vent condition mild, not to enter, adjust the temperature condition or the barrel (ban*el) condition, the screw shape, the screw shape & Etc., the cyclization condensation reaction is carried out under the same reaction state as that of the pressure cooker or the pot type reactor. : simultaneously using a cyclization condensation reaction having a devolatilization step, the 缩合% condensation 庑0 main, >&&&&&&&&&&&&&&&&&&&&&&&&& , ω is a method of adding a catalyst and heating the reaction, a method of heating the reaction without a catalyst, a method of performing the reaction under pressure, and the like. 26 200821350 In addition, the 'inner 酉 day condensing step 骡 会 会 取 取 取 取 取 取 取 取 取 取 取 取 取 取 取 取 取 取 取 取 取 取 取 取 取 取 取 取 取 取 取 取 取 取 取 取 取 取 取 取: δ The δ substance itself is used as it is in the original state, or a mixture obtained by solvating the solvent for the cyclization reaction is added after the removal of the granules. At the same time, the solvent used in the pre-advanced Jiaxiaotian# is not particularly limited, for example: - aromatic hydrocarbons such as methylamine and ethylbenzene; methyl ethyl ketone Ketones such as ketones; chloroform and dimethylformine are used to extract human genus + quinone, tetrahydrofuran; Preferably, it is a solvent of the same kind as the agent which can be used in the mixing step. The catalyst (i) added by the method, ^ ^ , , , and the heart such as 'the commonly used p-toluenesulfonic acid-specific catalyst or transesterification catalyst, citrate, etc., but in the present invention, The second biochemical "Do not, organic buffer acid, carbon x is better to use the above-mentioned organophosphorus compound. The addition period of the catalyst is redundant ^ main temple is limited, for example, it can be added, or added during the reaction, t" in the initial stage of the reaction It is also possible to add both of them. The addition of the catalyst 1 is not particularly limited to macroqing 琛 ^ 0 001 5 ^-0 1 α relative to the mass of the polymer (a), preferably 0.001 〜5% by mass, more preferably Pingyi 1 soil mass% estimate helmet λ.01~2·5 Berry%, and more preferably 0.01Μ Berry/〇, especially preferably 0.05~Ο”% by mass. ^(1) Heating temperature or heating time, not particularly limited to I, for example, heating/dish, preferably room temperature, μ is preferably wo, more preferably: more preferably, above, heating time, or _ short , cyclization: the heating temperature of the anti-reverse fruit is too long, then there is a decrease in the B-response rate, so it is not good. Further, as for the method (8), coloring or decomposition is not preferable. The polymerization reaction obtained in the step is mixed == silver, etc., a method of directly heating the polystyrene. 27 200821350 The heating temperature is preferably 100 〇c, preferably 1 to 2 G hours, more preferably 15 generations or more. 'Heating time Short heating time is cyclized to ~1 G hours. If the heating temperature is low or the temperature is increased, the ratio of the collateral is too low, so it is not good. Moreover, if the degree of heating is too long, it may be as good as the above-mentioned side, or the coloring or decomposition of the tree. There is no problem with the above methods (1) and (ii). At the same time::: the difference, that is, the pressure β, and the cyclization condensation reaction with the devolatilization step

In the middle of the reaction, there is no problem even if a part of the solvent is naturally volatilized in the reaction. At the same time, the cyclization condensation t & step of the devolatilization step is carried out before the TG measurement is carried out before the start of the devolatilization step, and the dynamics: i between i 50 and 30 (the mass reduction rate between rc, preferably In the following, the cyclization condensation reaction rate of 1.5% with ητ, and more preferably (10) with a devolatilization step, still cannot reach a sufficiently high level, and the polymer property of the inner ring is obtained.劣化 劣化 劣化 χ χ χ χ χ χ χ χ χ χ χ χ χ χ χ χ χ χ χ χ χ χ χ χ 上述 上述 上述 上述 聚合物 聚合物 聚合物 聚合物 聚合物 聚合物 聚合物 聚合物 聚合物 聚合物 聚合物 聚合物 聚合物 聚合物 聚合物 聚合物 聚合物 聚合物 聚合物 聚合物 聚合物 聚合物 聚合物The cyclization condensation reaction 'increased the cyclization condensation reaction rate to some extent, and then proceeds to the form of the cyclization condensation reaction having a devolatilization step, and the polymer obtained in the cyclization condensation reaction previously performed ( a hydroxyl group and at least a portion of the ester group in the molecular chain and a solvent obtained by cyclization and condensation, and a solvent, which is directly introduced into the same state and used in a cyclization condensation reaction with a devolatilization step, or as needed The polymer (polymerization of the private group present in the molecular chain and at least a part of the ester group after the cyclization condensation reaction 28 200821350) is separated, and after further treatment such as adding a solvent, the introduction is carried out simultaneously with the devolatilization step. The cyclization condensation reaction is not limited to the end of the cyclization condensation reaction, and may be completed at a time after the end of the cyclization condensation reaction. The above lactone ring-containing polymer is determined by dynamic TG, ~3(8) The mass reduction rate between C is preferably 5% by mass or less, more preferably 〇5 by mass. a below 'more preferably less than 0.3% by mass. · λ Μ Containing a lactone ring-containing polymer due to cyclization condensation Since the reaction rate is high, it is possible to avoid the disadvantage of generating bubbles or silver streaks in the molded article after molding. Further, since the lactone ring structure is sufficiently introduced into the polymer by the high cyclization condensation reaction rate, it is obtained. The polymer containing a lactone ring has sufficiently high heat resistance. The preferred embodiment of the reaction conditions and the like in the method for producing a thermoplastic resin having a ring structure, and the above-described lactone-containing ring The preferred embodiment of the reaction conditions and the like in the method for producing a polymer is the same. _ (Antioxidant) The antioxidant of the present invention is of the following formula (〇:

(In the formula (1), R is the same or different and represents a burnt group having a charcoal number of 1 to 5. The r2 is the same or different and represents an alkyl group having a carbon number of 8. The R3 represents a hydrogen atom or carbon 29 200821350 number 1 to 8 The base of the alkyl group is a hydrogen atom or a methyl group. The (meth) phenyl phthalate is an essential component. In the thermoplastic resin composition containing the above-mentioned thermoplastic resin having an ultraviolet absorbing monomer unit and an antioxidant, the heat resistance during molding can be improved by specifying the antioxidant as follows, and formation after molding can be avoided. The shortcomings of bubbles or silver in the product. In the antioxidant represented by the above formula (1), R1 is a carbon number! The alkyl group of 〜5, such as methyl, ethyl, propyl, tert-butyl, third pentylene, and the like. It is preferably a methyl group or an ethyl group, and more preferably an ethyl group. In the formula (1), r: is an alkyl group having a number of from 1 to 8, such as a methyl group, an ethyl group, a propyl group, a third butyl group, a third pentyl group, a third octyl group or the like. It is preferably a methyl group or a third pentyl group, more preferably a pentyl group. In the formula (1), R3 is a hydrogen atom or an alkyl group having 8 carbon atoms, and examples thereof include a halogen atom, a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, an octyl group and the like. More preferably, it is a hydrogen atom or a methyl group, and more preferably a methyl group. Further, in the formula (1), R4 is a hydrogen atom or a methyl group. It is preferably a hydrogen atom. The antioxidant described in the present invention is, for example, 2,4-di-tris-pentyl-6-indole-(=,5-di-tripentyl-2-hydroxyphenyl)ethyl]phenyl acrylate, 2 , Renyi-Tertiyl-6-[1-(3,5-di.-t-pentyl-2-cyanophenyl)butyl]phenyl=thin H 2 '4-one-second ·6·^3,;-di-p-pentyl-2-ylphenyl)propyl]phenyl acrylate, 2_t-butyl-6-(3_t-butyl-2-hydroxyl 5-methylphenyl ketone) 4-methylphenyl acrylate vinegar, etc. These may be used in combination of two or more kinds. Among these, 2,4·di-third-pentyloxab (1)-di-p-pentyl 2-hydroxyphenyl)ethyl] phenyl acrylate and/or 2_t-butyl _ are preferably used. 6_ 30 200821350 (3-Secontabutyl-2-hydroxy-5-methylbenzyl)-4-methylphenyl acrylate. More preferably, it is 2,4-di-tripentyldi-t-pentyl-2-hydroxyphenyl)ethyl]phenyl acrylate. Among the above antioxidants, a compound having an intramolecular double bond (radical polymerizable double bond), particularly the above-mentioned preferred compound, can be used as a process stabilizer for capturing polymer alkyl radicals under oxygen-free conditions such as processing. It is excellent in resistance to variability and excellent in solubility in organic solvents. In the present invention, a thermoplastic resin having a UV absorbing monomer unit is considered to be susceptible to thermal cracking of a side chain ultraviolet absorbing group, and an alkyl radical is generated, and these radicals are trapped in the thermoplastic resin composition of the present invention. The antioxidants used in the construction of the materials are particularly effective. In particular, the film or sheet used is particularly suitable for use in a film or sheet which is excellent in optical properties and appearance. (Addition of antioxidants) When the anti-rolling agent (additive) is added

The physical properties of the material are not particularly limited. For example, in the manufacture of 埶 埶 曰 曰 ( (for example, acrylic resin): ..., 』 』 』 』, 生 叮 疋 疋 疋 疋 疋 疋 疋 “ “ “ “ “ “ “ “ “ “ “ Adding ^m plastic resin after the addition of the thermoplastic resin to the enamel. The thermoplastic resin, antioxidant, and the like are heated together to melt or mix the resin or other thermoplastic resin with other plasticity resins. Tree j: φ ^ ^ This σ substance is first heated and melted, and then an antioxidant or anti-dandan is added, and a mixture of H4 J and other components is mixed and mixed, preferably in the form of a hot agent. It is more preferable to add anti-oxidation after the addition of anti-oxidation, and to heat and melt the mixture of thermoplastic resin or thermoplastic tree wax and other ingredients of 200821350, and then add a mixture of the anti-chemical agent and other components and mix it. Method J-anti-milk (thermoplastic resin composition) = Mingzhi thermoplastic resin composition, consisting of thermoplastic resin and antioxidant with the ultraviolet premature early body. Thermoplastic test , The ratio of the thermoplastic resin and the antioxidant, (iv) given irrelevant "thermoplastic resin / antioxidant f = 99 99~95% by square / square 〇1~ ^

The mass% is better 'better' is 99.95~97 0 mass% / 〇 〜 5~3 〇 mass% · especially good is 99.9~".〇 quality (10).1~】·〇% by mass. The ratio of antioxidants is less than 0 in the case of 0. (Η% by mass, sufficient stability of the occupational stability, sometimes foaming or silver streaks during forming. Conversely, if the ratio of antioxidants exceeds 5〇 mass〇/〇, then Excessive antioxidant leakage may occur. The thermoplastic resin composition of the present invention preferably has a glass transition temperature of ii 〇 or more. The glass transition temperature (Tg) of the thermoplastic resin composition of the present invention is preferably It is 12 (rc or more, more preferably 125t or more, more preferably 13〇弋 or more, and even more preferably 135T: above, especially preferably 14 (rc or more.) Although the above glass transition temperature is u〇t: In the above, the temperature at the time of the molding is high. However, the heat resistance and the like of the present invention can be exhibited in view of the fact that the resin is not deteriorated even if the temperature is raised. This is a technical significance of the present invention. The above glass transition temperature is the temperature at which the polymer molecules start microbrown movement, and various measurement methods are used. In the present invention, it is defined as using a differential scanning calorimeter (DSC) according to ASTM-D-3418 (American Material Testing). Association (Americ An Society for Testing and 32 200821350

Material specification), the temperature is obtained by the midpoint method. Several glass transition temperatures are sometimes observed. In the present invention, the main conversion temperature of a large heat absorption amount is employed. The glass transition temperature of the thermoplastic resin composition is preferably such that the thermoplastic resin composition is composed of a thermoplastic resin and an antioxidant, or the thermoplastic resin is composed of an antioxidant and a deactivator. The glass transition temperature at the time of measuring the thermoplastic resin composition falls within the above range. Moreover, it is preferable that the thermoplastic resin composition contains a bismuth shape of the components other than the above, and it is preferable to measure the thermoplastic resin composition constituting the thermoplastic resin composition and the thermoplastic resin composition to be contained in the mass ratio of the thermoplastic resin composition. When the mixture, the thermoplastic resin constituting the thermoplastic resin composition, the antioxidant, and the deactivator are contained in a mixture of the thermoplastic resin composition in a mass ratio, the glass transition temperature is within the above range. In the thermoplastic resin composition of the present invention, in the thermogravimetric analysis (tg) φ, the 5% weight loss temperature is preferably 28 (TC or more, more preferably 29 Å or more, and more preferably 300 ° C or more. The 5% weight loss temperature in the thermogravimetric analysis (TG) is an index of thermal stability, and if it is less than 28 〇 < t, there is a possibility that sufficient stability cannot be exhibited. The thermoplastic resin composition of the present invention, wherein The total amount of the residual volatile component is preferably 5,000 ppm or less, more preferably 2 〇〇〇 ppm or less. When the total amount of the remaining volatile components is more than 5,000 ppm, coloring due to deterioration at the time of formation may occur. The cause of the formation of volatilization, silver streaks, etc. The thermoplastic resin composition of the present invention may also contain a thermoplastic resin other than the thermoplastic resin having an ultraviolet absorption 33 200821350 monomer unit. These thermoplastic resins are not particularly different in type. Preferably, the thermodynamically compatible thermoplastic methacrylic resin is preferred for improving transparency or mechanical strength. The thermoplastic resin composition of the present invention has a UV absorbing monomer alone. The ratio of the thermoplastic resin to the other thermoplastic resin is preferably 60 to 99: 1 to 40% by mass, more preferably 7 to 97: 3 to 3 % by mass, still more preferably 80 to 95: In the thermoplastic resin composition, if the content of the thermoplastic resin in the ultraviolet absorbing monomer unit is less than 60% by mass, the effect of the present invention may not be sufficiently exhibited. Resin, for example, olefin-based polymer such as polyethylene, polypropylene, ethylene-propylene copolymer, poly(4-methyl-1-pentene); cycloolefin polymer (cycloalkyne resin); vinyl chloride, chlorine A dentate-containing ruthenium polymer such as an ethylene-based resin; a polymethyl propyl sulphate, a succinic acid-based polymer, a polystyrene (PSt), and a methacrylic acid Benzene, styrene-acrylonitrile, styrene-butyrene, styrene-butadiene block copolymer, styrene-based polymerization, polyethylene terephthalate, poly(p-terephthalate) Methyl butyl vinegar, poly-pair oxalic acid Ethyl s-S are intended to be used for special purposes; financial theory, resistance theory 6 6 , resistance to 61 〇 and other polyamines · poly Aldehyde; polycarbonate (PC); polyphenylene ether (phenylene 〇xide); poly(phenylene sulfide); polyether ether _; polysulfone; polyether sulfone; polyoxybenzene Polyoxybenzylene; polyamidoximine; polybutadiene rubber, rubbery polymer such as ABS resin or AS A resin blended with acrylic rubber; triethylenesulfonyl cellulose (TAC), etc. Preferably, the rubbery polymer has an average particle diameter of the graft 34 200821350 having a composition which is compatible with the ring polymer of the present invention, and is preferably formed into an extruded film shape of 300 nm or less. I50nm or less, $== olefin resin, triethyl fluorenyl cellulose (tac), polycarbonate (= styrene (PSt), etc. #crystalline resin for optical film, although the copolymerization is difficult to use in the optical film UV-absorbing in amorphous resin

The thermoplastic resin composition of the early body unit can obtain the thermoplastic resin composition of the present invention. For example, in the present invention, a copolymer of a UV-absorbing monomer and (meth)acrylic acid vinegar is preferably added. More preferably, it is a form of a copolymer of 2_(2,-carbamicin·5'-methacryloxy)ethylphenyl cation·benzotrisal and (meth) acrylate.

In addition, the viewpoint of transparency in rubbery polymers is better. A thermoplastic resin having the above-mentioned ultraviolet absorbing monomer unit, especially other enamel plastic trees which are thermodynamically compatible with a polymer containing a lactone ring: t' can be used with a vinyl cyanide monomer unit and The polymer of the aromatic vinyl monomer unit is specifically a polymer containing 5% by mass or more of an acrylonitrile-styrene copolymer or a polyvinyl chloride resin or a mercaptoacrylic acid vinegar. Among these, the acrylonitrile-phenethyl styrene copolymer is preferred because it has a good compatibility with a wide range of copolymerization compositions. Further, the thermodynamically compatible state of the thermoplastic resin having the ultraviolet absorbing monomer unit and the other thermoplastic resin can be confirmed by measuring the thermoplasticity of the mixture and the glass transition point of the lipid composition. Specifically, it is said that the hybrid enthalpy of the thermoplastic methacrylic resin and the other thermoplastic resin is thermodynamically compatible when only the i point is observed for the glass transition point of the test. 35 200821350 Other thermoplastic resin, (4) In the case of acrylonitrile, styrene, or copolymer, the method of producing the film may be an emulsion polymerization method, a suspension polymerization method, a solution method, a bulk polymerization method, or the like, but an optical film obtained therefrom The viewpoint of transparency or light + property is preferably obtained by solution polymerization or bulk polymerization.

In the thermoplastic resin composition of the present invention, a small amount of unreacted anti-rhodium group may remain after the addition of the catalyst and the cyclization condensation reaction is not carried out, which may cause foaming or interpolymerization during molding. In addition, it is preferred to add a cyclization condensation catalyst deactivating agent. The cyclization condensation reaction uses an acid catalyst or an alkaline catalyst. In this case, the deactivating agent will inactivate the catalyst due to the neutralization reaction. Therefore, in the case where the catalyst is an acidic substance, the deactivating agent is used. The substance can be used. On the contrary, the catalyst is opened for the test substance, and the agent can be used as the agent. The deactivator may be a material which is resistant to the physical properties of the resin composition, etc., but the deactivating agent may exhibit, for example, a metal acid salt or a metal, and the A is a compound. Etc., wherein the metal carboxylate and the metal oxide are: to the:: Here, the metal is not particularly limited as long as it does not interfere with the resin composition, and does not cause environmental pollution at one time, and examples thereof include metals such as clock, sodium, and potassium; and alkaline earth types such as magnesium, and m. Resignation; wrong; and so on. The carboxylic acid constituting the metal (tetra) salt is not particularly limited, and examples thereof include acetopropionic acid, butyric acid, valeric acid, capric acid, heptanoic acid, caprylic acid, capric acid, capric acid, lauric acid, myristic acid, and palm. Acid, stearic acid, dodecanoic acid, thirteen acid, fifteen acid, seventeen burned acid, transgenic acid, oxalic acid, malonic acid, No. (tetra), fumaric acid, Malay = adipic acid, etc. . The organic component in the metal complex is not particularly limited, and for example, 36, 2011,350, for example, acetaminophen _. For example, · · · · · · · · · · · · · · · ············································································· Compound or carboxylic acid-containing. The deactivators may be used singly or in combination of two or more. Further, the deactivating agent may be added in any form such as a solid, a powder or a dispersion. K 'he

η: the combination of inactivation J 篁 'can be used as the catalyst for cyclization condensation, and is not particularly limited, as opposed to thermoplasticity (4). (4) Qing ton, more preferably 5 〇 5 〇〇〇 ppm and better ^ (10) ~3_Ppm. If the amount of the deactivator is not $, the foaming during molding may occur due to insufficient action of the deactivator, or the polymer may be viscous due to cross-linking. On the other hand, if the amount of the deactivating agent is more than 1 〇〇〇〇 PPjn, the use of the deactivating agent in an amount of more than necessary may cause a decrease in the molecular weight of the resin composition. The time of adding the above-mentioned deactivating agent is not particularly limited as long as it is added to the thermoplastic resin and is sufficiently subjected to a cyclization condensation reaction and the obtained resin composition is subjected to hot working. For example, there is a method of adding a deactivator at a selected stage in the production of a thermoplastic resin, or adding a thermoplastic resin. The method of adding the thermoplastic resin may, for example, be a method in which a thermoplastic resin, an inactivating agent, or other components are simultaneously heated and melted and kneaded; and a thermoplastic resin or a thermoplastic resin and other components are used. The mixture is heated and fused, and a deactivating agent or a mixture of the deactivating agent and other ingredients is added thereto to knead the mixture. Wherein, the form of the deactivator is preferably added after the thermoplastic resin is produced, and it is more preferable to heat-melt the mixture of the thermal resin or the thermoplastic resin and other components: 'Addition of the deactivating agent or the loss thereof A mixture of active agents and other ingredients. In this clearing, "after the kneading of the thermoplastic resin and the deactivating agent, a devolatilization step is provided. The reason #, by providing the devolatilization step, the thermoplastic resin obtained is hardly foamed during hot working. The devolatilization step may, for example, be a devolatilization step as described above in the devolatilization step carried out in the production of the inner ring-containing polymer. The thermoplastic resin composition of the present invention may further contain other additives. Examples of the additives include antioxidants such as age-blocking, squama, and sulfur; stabilizers such as glycerin stabilizers, weather stabilizers, and heat stabilizers; reinforcing materials such as glass fibers and carbon fibers; and near-infrared absorbing agents; ; three (two desert propyl) dish vinegar, triallyl acid vinegar, oxidation recording and other flame retardants; anionic, cationic, nonionic surfactants and other antistatic agents; inorganic pigments, organic pigments Coloring agent such as dye; organic filler or inorganic filler; resin modifier; organic filler or inorganic filler; plasticizer; lubricant; antistatic agent; flame retardant, etc. The content ratio of the additive is preferably 5% to 5% by mass, more preferably 0 to 2% by mass, particularly preferably 0 to 0.5% by mass. The thermoplastic resin composition of the present invention has a thickness of 9 〇 to 1 〇〇 μηη. The light transmittance at 5 〇〇 nm is preferably 8 〇 % or more, more preferably 85% or more, and particularly preferably 95% or more. Further, the thickness is 9 〇 〇〇 1 〇〇 μ η when the light is at 38 〇 nm The penetration rate is less than 30%, more preferably less than 20%, and even more preferably less than 1%. By making the light transmittance fall within such ranges, it can be applied to various uses, especially optical materials. For optical applications, the closer the optical material is to colorless, the better the price of the product as an optical material will be significantly reduced if the thermoplastic composition of 38 200821350 is colored. 50 〇 nm is the wavelength of the visible light region, so the light at this wavelength is worn. The permeability is 80% or more, that is, "absorption of less than 2% by weight" means that the visible light absorption is small, and the thermoplastic resin composition becomes nearly colorless. When the light transmittance at 5 〇〇 nm is less than 8 %, the visible light is absorbed, the color of the composition of the thermoplastic resin is marked, and the transparency is lowered, which may be unusable for the intended purpose. For example, there may be defects that are not applicable to optical materials. The thermoplastic resin composition of the present invention is also suitable as an optical material having a purple (external) blocking function. Ultraviolet rays are a cause of deterioration of various materials due to their high energy. In order to protect the material from ultraviolet rays, a material for blocking ultraviolet rays is required, and in order to be an ultraviolet shielding material, it is preferred that the tooth permeability is at least 3 〇% at least 3 80 nm. If the transmittance of 38 〇 nm is above, the ultraviolet ray cannot be sufficiently blocked. In other words, the ultraviolet ray blocking function cannot be sufficiently sufficient to sufficiently protect the material from ultraviolet rays, which may cause deterioration of the material such as yellowing (yellowing). In the above thermoplastic resin group, it is possible to suppress the penetration of light in the ultraviolet region at a wavelength of 380 nm to less than 3% by the light transmittance of 380 nm of less than 3%. As described above, the light transmittance of the thermoplastic resin composition is preferably in the above range, and can be applied to a film or sheet having a transparent appearance and having an ultraviolet function. It is determined according to JIS K736l_i: However, in the case of difficulty in forming, the resin may be dissolved in a suitable solvent, and 2 using a quartz element may be replaced by a concentration corresponding to the thickness of the μμι thickness and the optical path length. For example, the optical path length is used. In the case of measuring the quartz component of lcm, 39 200821350 First, only the solvent is placed in the quartz element and measured as a blank value, and then the mass % solution of the resin to be determined is prepared. The solution is injected into the quartz element in a manner that does not produce bubbles and is measured, and the difference from the blank value is used as the transmitted light intensity to replace the transmittance. The solvent needs to be completely/capacited by the resin to be measured, and The solvent having a absorption as small as possible at 380 nm and 500 nm should be selected. Specifically, in the case where the thermoplastic resin composition is in the form of particles, the particles can be made into a 1% by mass chloroform solution to measure the above-mentioned light tooth permeability. In the following, the light transmittance of the thickness 丨〇〇μιη can be measured using a chloroform solution of about 0.3 to 1% by mass. That is, the thermoplastic resin composition of the present invention is in thickness. The light transmittance at 50 〇 nm when 1 〇〇 μηη is preferably 8% or more, more preferably more than 95%, and the light transmittance at 500 nm is less than 80%. The transparency is lowered, and it is not possible to use it for the purpose of the original purpose. Also, in the thickness ΙΟΟμιη, the light transmittance at 380 nm is preferably less than 3 〇 / ° 'more preferably less than 2 〇 0 / ❶, and More preferably less than 10%. Light penetration at 380 nm If it is 30% or more, the ultraviolet rays cannot be sufficiently blocked, and the upper limit of the light transmittance at 380 nm or 500 nm is 1 〇〇〇/〇 which substantially penetrates all the light. (The thermoplastic resin Application and molding of the composition) The thermoplastic resin composition of the present invention has not only transparency and heat resistance h / , but also has characteristics such as low color, mechanical strength, and molding process, and has ultraviolet absorbing ability. It is also useful as a film or sheet, for example, as an extruded film or an extruded sheet. That is, the present invention is also a film or sheet formed of the above thermoplastic resin composition. The thermoplastic resin of the present invention is composed of a resin of 200821350. A preferred embodiment of the article is an extruded film or an extruded sheet comprising the thermoplastic resin composition. The present invention is also a method of producing the film or sheet of the present invention, and the method for producing the film or sheet is also a film or sheet which is subjected to a forming step after the filtration treatment step with a polymer filter. In the molding step of the thermoplastic resin composition of Yutong, it is inevitable that some foreign matter is mixed in the thermoplastic resin composition or the molding step. Therefore, it is desirable to form a material from which foreign matter has been removed. For example, it is desirable to reduce the number of defects generated in an industrially produced molded article or to make the appearance of the molded article better by removing foreign matter. In particular, in the case of a molded article used for optical use, the presence of foreign matter has a significant influence on optical performance, and it is preferred to carry out a forming step after performing a filtration treatment step with a filter. On the other hand, in the case where the thermoplastic resin composition is extruded into a shape, it is usually solid at normal temperature (in the form of particles or the like), and it is necessary to thermally melt the formed material through the polymer filter in the filtration treatment step. Therefore, * heat is only experienced in the forming step, and also in the previous step, the transition processing step. With conventional techniques, there is a problem of thermal degradation like this thermal experience. Since the thermoplastic resin composition of the present invention can be made more excellent than the conventional one, even if it is used for the filtration step of the polymer filter to remove foreign matter, the molding step is more experienced than usual. In other cases, it is also possible to suppress the deterioration of the resin (molded article) due to the thermal experience of the resin. As a result, thermal deterioration of a molded article such as a film or a sheet formed of a thermoplastic resin composition is suppressed, and one of the effects of high appearance and optical performance of 41 200821350 can be exhibited more. The present invention solves the above problems. This is a preferred embodiment of the present invention, which is a method for producing a film or a film of the present invention (for example, a film: a film or a forming step, etc.). :: The transition process of the material passing through the sputum, the mussels are bad, the film is squeezed or the squeezing is the same as the pregnancy. 1 is a preferred embodiment of the method. The forming step described above can be extruded into a shape with a mountain composition. +歹'# Thermoplastic Resin of the Invention The film or sheet of the present invention is preferably used as an optical film or an optical sheet. (Squeezing 2 film or extruded sheet) The film or sheet of the present invention is preferably an extruded film or an extruded sheet which is extruded into a shape. UM, and the film thickness of the above-mentioned extruded film is preferably 1 (four) or more and less than 350 mm, more preferably ΙΟμηι or more, and 湓 禾 满 350 η 。. If the film thickness is thinner than 1 μιη, it is easy to shoot and break due to the lack of strong sound, the surname, and the extension. Do not ~ The film thickness of the above extruded sheet is preferably 35 〇 〜 l l 〇 mm, more preferably 350 ηηι m~5 mm. The sheet-like optical planar thermoplastic resin molded body having a film thickness of 1 Å is thick, and the thickness of the sheet is not uniform, which is not preferable. The above-mentioned extruded film or extruded sheet has a high light transmittance, and therefore the total light transmittance is preferably _ or more, more preferably 85% or more, still more preferably 90% or more, and particularly preferably 92% or more. The above extruded film or extruded sheet is preferably 10 MPa or more and less than 1 MPa in accordance with the tensile strength measured by astm_d_882_6it (American Society f0r Testing and Materials). More preferably 30 MPa or more, less than i 〇〇 Mpa. In the case of less than 1 MPa, there is a thermal method that exhibits sufficient mechanical strength, which is not good. If it exceeds 1 〇〇Mpa, the workability is deteriorated, which is not preferable. The above extruded film or extruded sheet preferably has an elongation of 1% or more in accordance with ASTM_D_882_61T. The upper limit is not particularly limited and is usually preferably 1% or less. In the case of less than 1%, sometimes it lacks toughness, so it is not good. The extruded film or the extruded sheet of the present invention preferably has a modulus of elasticity of (5. 5 GPa or more, more preferably iGpa or more, and more preferably 2 GPa or more, as measured according to astm_d_882_6it. The upper limit is not particularly limited, but is usually preferably 2 〇 or less. In the case of less than .5 GPa, there is a flaw in the inability to express sufficient mechanical strength, which is not good. Hereinafter, a method of producing an extruded film or an extruded sheet from the thermoplastic resin composition of the present invention will be described in detail as an example of a preferred use. (Manufacturing method of extruded film or extruded sheet) ^The thermoplastic resin composition of the month is not particularly limited, and the extruded film or the extruded sheet is not particularly limited. For example, a thermoplastic resin having a UV absorbing monomer unit and other heat can be used. A plastic resin or other additive, etc., is mixed by a known mixing method, and a thermoplastic resin composition is prepared in advance to produce an extruded vine: Wu Shi Fan film field. The preparation of the thermoplastic resin composition: and then, ': 2: 7 is a method of pre-extrusion of the L compound by a mixer such as a universal homogenizer (_imixe). In this case, the crucible is used for the kneading of the private mixing. The machine is not particularly limited. For example, the 43 200821350 shaft extrusion machine, the double-axis sowing machine 4 4 丨 ^ machine squeezing machine or the pressure pinch «#, for example, in the well-known kneading machine D squeezing green 4 , ^ + 佾 1 ^ bar training method, for example, preferably using melt extrusion method. The above melt extrusion method, for example, T-die method, blow bag forming (four) ation), at this time extrusion film or extruded sheet forming The temperature is preferably 15G to 35 (rc, more preferably 200 to 35 (TC, and more preferably) 2〇〇~3〇 generation, and even more preferably 250~ bribe, still better for 255~3, c, especially佳为〜战^ In the case of extrusion molding or extrusion molding by the above T-mold method, that is, in the case of extrusion molding, it can be at the front end of a known single-axis extruder or a twin-shaft extruder , Anzhen T u α is loaded with a core 'and wound into a film-like film to obtain a roll-shaped film. The temperature of the winding roller at this time can also be appropriately adjusted by The spreading direction is extended to perform a uniaxial stretching step. Alternatively, steps of sequential biaxial stretching, simultaneous biaxial stretching, and the like may be applied by applying a step of extending the film in a direction perpendicular to the extrusion direction. The extrusion machine used in the manufacture of the extruded film or the extruded sheet of the present invention can be a single-axis extruder or a multi-axis extruder, and is fully plasticized or kneaded, L/D. (L indicates the length of the cylinder of the extruder, D indicates the inner diameter of the cylinder), preferably 10 or more and 100 or less, 2 or more and 5 or less, and 25 or more and 40 or less. L/D if not 1〇, it is not easy to obtain a sufficient plasticization or kneading state. If it exceeds 100, excessive shearing heat of the resin will increase, and the resin may be decomposed. Moreover, the set temperature of the cylinder is preferably 2〇〇t: Above, 3 〇 (rc or less, more preferably 250 C or more, 30 (TC or less. If less than 2 〇〇. 〇, in order to improve the melt viscosity of the resin, it is necessary to have more than necessary high power or plasticization must be 200821350 The L/D will cause inconvenience to the production. If it exceeds 300 °C, the resin will decompose. In the method for producing the extruded film or the extruded sheet, the shape of the extruder is not particularly specified, but the one or more open exhaust ports of the machine are extruded, and the decomposition gas generated by the pressure reduction is attracted. It is more effective in suppressing the residual volatile component and the open exhaust port portion is in a reduced pressure state, and the degree of pressure reduction is preferably in the range of 931 to 13 hPa (700 to 1 mmHg), and 798 to 13.3 hPa (6 GG to IG mmHg). The above-mentioned pressure is more than Μ' (4) The residual volatile component in the resin or the monomer component generated by decomposition of the resin tends to remain. Further, if it is less than 13 hpa, there is a problem that industrialization is difficult. The case where the above-mentioned extruded film or extruded sheet is used for optical use such as an optical film is not limited, but in order to prevent an influence on the appearance after molding, it is preferred to remove the foreign matter in the resin by a polymer filter. Forming is carried out. When it is filtered by a polymer filter, when the resin in a high-temperature molten state is filtered by the polymer, the resin composition is deteriorated, and in the case of continuous molding, the decomposed gas component or the colored deterioration product flows out. Openings or flow marks, flow streaks of defects in the film or sheet are observed. Therefore, in order to lower the melt viscosity of the resin and to minimize the residence time of the polymer filter, the molding temperature is not particularly limited, but is preferably 255 t: 〜3 〇 (rc, particularly preferably 260 ° C to 300 The above polymer filter is not particularly limited to a polymer filter in which a disk type filter is disposed in a housing, and it is more preferable to use a plurality of leaf discs in the housing. Polymer filter for type filter. Leaf 45 200821350 The filter 铋1, ^ in the disc filter can be used to burn the metal powder without squeezing the metal fiber, "^-,,,, Class, "In, the type of metal mesh layer, or, and 5 have this special mixed-form thief. κ ^, any of the 4, 琅佳 is the type of metal fiber non-woven. * The net is also 'according to the accuracy of the special service & ^, 艮疋, is 15 (four) or less, preferably 10, the lower 'takes better than 5_. Also, more than 1μιη is better. If it is one or less 'is then staying Time increases, so the heat from the resin deteriorates

:=:, is not good. On the other hand, if it is too ~ it will be easy to break into foreign objects, so it is not good. The filtration area corresponding to the resin treatment amount per unit time of the above polymer filter is not particularly limited. The amount of treatment is appropriately set, for example, 0.001 to 0.15 m 2 /(kg/h). Generally, the above-described polymer filter provided with a leaf disc type filter is provided with a center hole passing through the center portion of the disc type filter. The shape of the center hole is not particularly limited, and examples thereof include a plurality of resin flow ports, an inner flow pattern having a resin flow path in the center hole, and a cross section s with a majority of points or surface-to-disk type filtration. The inner peripheral surface of the inner peripheral surface (for example, the inner peripheral surface of the leaf disc filter) has a flow pattern other than the resin flow path on the outer surface of the center hole, and preferably has a flow pattern which is less in the resin flow path. When it is filtered by the above polymer filter, the residence time is not particularly limited, but is preferably 20 minutes or shorter, more preferably 1 minute or shorter, and even more preferably $, 'inside. Further, the filtration, the inlet pressure and the outlet pressure of the filter are preferably, for example, each of 3 to 15 MPa, 〇3 to 1 〇 MPa, and pressure loss (pressure of the inlet and outlet of the filter) Poor) is preferably in the range of 1 MPa to i5 MPa 46 200821350. When the pressure loss is 1 MPa or less, the flow path of the polymer through the filter is likely to be deviated, and the quality tends to decrease. On the other hand, if it exceeds 15 MPa, the filter may be easily broken. The temperature of the resin of the heat-resistant acrylic resin introduced into the filter can be appropriately set in accordance with the viscosity, and is usually 250 to 3 Torr (the range of rc, preferably the range, more preferably 260 to 3 Å. The step of obtaining a final molded article having a foreign matter or a small amount of a colored matter by filtration treatment using the above polymer filter is not particularly limited, and (1) filtration treatment is carried out in a clean environment at the time of production of the polymer, followed by purification. The procedure for forming in the environment, (7) the accumulation of foreign matter and coloring matter: the degree of material-degree reduction under a clean ring, followed by the process of forming in a clean environment, (3) foreign matter, coloring The polymer of the material is filtered in a clean environment, and the forming process is carried out at the same time, and the polymer filter treatment can be performed multiple times in each step. Further, whether it is a single-axis extruder or a double Axle extrusion machine, multi-axis extrusion machine, if a gear pump (Gear Pump) is provided between the extrusion machines, it is more preferable to stabilize the tree in the transition device. The extruded film or extrusion of the present invention Production method of production In other words, it is preferred that the thermoplastic resin having the ultraviolet absorbing monomer unit and the ultraviolet absorbing agent as desired are kneaded by an extruder to form a thermoplastic resin. It is formed into an extruded film or an extruded sheet. Compared with the case where the granules are formed into a film or a sheet, the thermal history can be reduced, and therefore, the thermal deterioration of the resin composition is prevented, and further, since it can be prevented from being mixed in from the environment. The P material can reduce the foreign matter or the coloring. Preferably, the gear pump and the polymer filter are disposed between the extruder and the mold. The extruded film of the present invention may be an unstretched film. In the case of a stretched film, it may be a uniaxially stretched film or a biaxially stretched film. In the case of a biaxially stretched film, it may be a simultaneous biaxially stretched film or a sequential biaxially stretched film. In the case of biaxial stretching, the mechanical strength is improved, and the film properties are improved. The film of the present invention (for example, an optical film) can be maintained by mixing other thermoplastic/resin compositions, and even if the elongation is increased, the phase difference can be suppressed. Light

The stretching temperature is not particularly limited, but is preferably in the vicinity of the glass transition temperature of the extruded film raw material plastic resin composition. Specifically, it is preferably (glass transition temperature - shoe ~ (glass transition temperature + _. 〇, more preferably ((glass transition temperature -20). (: ~ (glass transition temperature + 8 〇) t ^ range. If the extended temperature production is lower than (glass transition temperature - 玛.c, can not get sufficient delay rate) Poor. If the extension temperature exceeds (glass transition temperature + 1 (9)). 〇, the flow of the thermoplastic resin composition (7) is called, sometimes there is no extension of =, so it is not good. 疋: area ratio defined extension ratio, It is preferably in the range of U to 25 times and in the range of 1.3 1 (M.) If the stretching ratio is less than 1 1 , the elongation may not be improved with the extension, which is not preferable. 25 times, "when the speed of extension is not increased, the speed is 10~2〇〇〇〇%/min, and the more the rabbit is 100~1 〇〇〇〇%/min. If If the extension speed is less than 10%/min, in order to obtain a sufficient extension ratio, both will be used. However, it takes time and the manufacturing cost is increased, so it is not 48 200821350. The film is broken: = = = 2_°% / -, then the extension is defined as: the optical isotropic or mechanical of the above extruded film or extruded sheet. The characteristics are ampoules, and heat treatment (tempering) can be carried out after the extension treatment. The female is the extruded film or the extruded sheet, and the antistatic layer, the adhesive layer and the enamel can be used depending on the purpose. For the day ^ catalyst layer, etc. u, easy adhesion layer, anti-glare (n, glare) layer, optical edge 垆 two M ^ reflective layer, hard coating, ultraviolet shielding layer, 埶 magnetic wave shielding layer, gas barrier, etc. Various functional coatings: no-layer coating' or in the extruded film or extruded sheet of the present invention, the member coated with the coated coating layer is passed through an adhesive or an adhesive, and/or a laminate. The order of the lamination is not particularly limited, and the method of laminating is not particularly limited. The extruded film or the extruded sheet of the present invention is not particularly limited, and is suitable for optical use: 'for example, an optical protective film or an optical film An optical sheet, etc. The film for protecting the light 2 is not particularly limited as long as it is a film for protecting the optical member. For example, a variety of optical disks (vd, cd, dvd, md, ld^^m: a polarizer protective film used for a polarizing plate for a film or a liquid crystal display device: "° optical film" is excellent in optical characteristics. The film is not particularly limited, and is preferably a retardation film, a viewing angle compensation film, a light diffusion film, a reflection film, an anti-reflection film, an anti-glare film, a shell-lift film, a conductive film for a touch panel, etc. a diffusion plate, a light guide, a phase difference plate, a bismuth sheet, etc. The thermoplastic resin composition according to the present invention is formulated with a specific antioxidant in a thermoplastic resin having a UV-receptive monomer unit. It has UV absorbing ability, and has properties such as transparency, mechanical strength, and moldability of 49 200821350. It also provides molded articles with excellent thermal stability during molding. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be more specifically described with reference to the embodiments and comparative aspects, but the present invention is not limited thereto. Hereinafter, for the sake of simplicity, the "mass portion" is sometimes referred to as "parts", and the "Liter" is sometimes referred to as "L". &lt;Weight average molecular weight&gt; The weight average molecular weight of the polymer in the resin composition was determined by gel permeation chromatography (GPC) (manufactured by Tosoh Corporation, device name: GPC system) under the following conditions. Developing solvent (expansion liquid) and gas simulation (manufactured by WAC Co., Ltd.) Standard sample: TSK standard polystyrene (made by Tosoh Corporation, PS_ oligomerkit 12 type) Measuring side and protection column (TSK Guard column SuperH- H), Separation column (TSK gel Super HM-M) 2 branches in series 10 Reference side: Reference column (TSK gel Super H-RC) Flow rate: 6ml/min <Thermal analysis of the compound> Resin composition The thermal analysis was carried out using a differential scanning calorimeter (DSC-8230, manufactured by Rigaku Corporation) under the conditions of a sample of about 10 mg, a temperature increase rate of 10 ° C/min, and a nitrogen gas flow rate of 50 mL/min. Further, the glass transition temperature (Tg)' is determined by the midpoint method in accordance with ASTM-D-3418. &lt;Light Transmittance&gt; 50 200821350 The light transmittance of the resin composition is obtained by dissolving the resin composition in chloroform, and filling the quartz element of the optical path length cnl with 0.3% by mass, and using a spectrophotometer (Shimadzu Corporation) System, device name: UV-3 100) measurement. &lt;Evaluation of Foaming Properties&gt; The pellets of the resin composition were dried in a circulating hot air dryer at 8 (r after drying for 5 hours, and 6 g of the obtained dried pellets were filled in a melt index meter (Meltlndex) prescribed in JIS_K72l〇 Inside the cylinder, at 27〇t:, to 1〇kg

The load is kept for 20 minutes. Thereafter, the molten resin in the apparatus was extruded into an f shape to visually observe the foaming state of the ribbon, and the foaming property was evaluated. (Example 1) In a 30 L reaction vessel equipped with a stirring device, a temperature sensor, a cooling tube, and a nitrogen introduction tube, methyl methacrylate (mma) 4 parts, 2_(antelope methyl) acrylic acid was added. 5 parts of oxime ester (MHMA), 2_(2,-hydroxyl, methyldienyloxy)ethylphenyl)_2H_benzotriazole (manufactured by Otsuka Chemical Co., Ltd., two = name: RUVA-93 5 parts of ultraviolet absorbing monomer, 5 parts of toluene, = antioxidant (made by Asahi Denki Kogyo Co., Ltd., trade name: Adecastab 2112) 0.G25, Orthodox thiol G G25 parts, While the nitrogen gas is heated to a temperature of 1 G5t: and refluxed, a third amyl peroxyisophthalate (manufactured by at〇fina Jifu Co., Ltd., trade name Lupasol 57〇) is added as a second starting oxime. ) 〇. 〇 5 parts, while the third part of the peroxyisophthalic acid is 0.1% spent 2 hours, and under reflux (about 1 〇 5 ~ u

The solution was polymerized and further aging was carried out for 4 hours. T, in the polymer solution to be added, add 2 parts of disc acid 2-ethylhexan vinegar (manufactured by Desei Industrial Co., Ltd., trade name: Phoslex A_8), 5 parts under reflux (51 200821350 Λ 90~110° C) A cyclization condensation reaction was carried out for 2 hours. Next, heat treatment was carried out at 240 ° C for 30 minutes in a pressure cooker to complete a cyclization condensation reaction. Next, the polymer solution obtained by the above condensation and condensation reaction is at a cylinder temperature of 240X: a rotation speed of 100 rpm, a decompression degree of 13.3 to 400 hPa (10 to 300 mmHg), a number of rear exhaust ports, and a front exhaust. Exhaust type screw twin-axis extruder with 4 ports (from the upstream side, called the !, 2nd, 3rd, and 4th exhaust ports) (φ=29.75mm, L/D = 30) It was introduced at a treatment rate of 2.0 kg/hour in terms of resin amount, and devolatilization was carried out. _ devolatilization of the antioxidant 2,4 _di-third amyl-6 - [ 1 - ( 3,5 -di-th-pentyl-2-hydroxyphenyl)ethyl] phenyl acrylate ( Sumitomo Chemical Co., Ltd., trade name: Summzer-GS) 40 parts and inactivation agent zinc octoate (Sakamoto Chemical Industry Co., Ltd. 'product name: NIKKAOKUCHIKUSU (transliteration) zinc 3.6%) 29 parts dissolved in 曱An antioxidant-deactivator mixed solution made of benzoquinone is injected from the first exhaust port using a high-pressure pump at an input speed of 〇.〇2kg/hour, and at the same time, a high pressure is used from the third exhaust port. The pump injects ion-exchanged water at an input rate of _ 〇 .01 kg / hour. By the above devolatilization operation, yellow transparent resin composition particles were obtained. The glass transition temperature of the obtained pellet was 126 ° C, the light transmittance at 380 nm was 13%, the light transmittance at 5 〇〇 nm was over 98%, and the weight average molecular weight of the polymer in the resin composition. It is 135,000. As a result of evaluating the foaming property, almost no foaming was observed, which was good. (Example 2) The antioxidant was changed to 2_t-butyl_6_(3_t-butyl-2-yl-based 5-methylbenzyl)-4-methylphenyl acrylate (Sumitomo Chemical Co., Ltd.) (Stock), product 52 200821350 name · sunnhzer GM) 40 parts, in addition to the above, I*, and the example 1 of the same, the same as the resin composition particle of the transparent color. The glass transition temperature of the obtained granules is 127. The light transmittance at 380 nm 糸 / dry horse 14 / g, the light transmittance at 50 〇 nm is 98% or more 'The weight of the polymer in the resin composition The average molecular weight is 130,000. As a result of evaluating the foaming property, it was hard to see that the bag was good. (Comparative Example 1) A yellow transparent resin composition pellet was obtained in the same manner as in Example 不 except that the antioxidant was not used. The foaming property of the obtained particles was evaluated. When many fine bubbles were observed, the result was foaming. (Comparative Example 2) The antioxidant was changed to pentaerythritol tetra [3 gas 3,5-di-t-butyl-cyanohydroxyphenyl)propionic acid 1 (manufactured by Chiba Speciality Chemicals, trade name: Irganox 1010) In the same manner as in Example 1, except that the phenolic antioxidant was blocked, yellow transparent resin composition pellets were obtained. The foaming property of the obtained particles was evaluated, and many fine bubbles were observed, and as a result, foaming was obtained, and pentaerythritol tetrakis[3-(3,5-di-t-butyl-4-ylhydroxyphenyl)propionic acid was used] 'A compound represented by the following formula.

(Comparative Example 3) The antioxidant was changed to 3,9-bis(2-[3-(3-tert-butyl-4-hydroxy-5-53 200821350)

JL methylphenyl)propenyloxy]_u_dimethylethyl)_2,4,8,1〇_tetraoxaspiro[5,5]decene (made by Asahi Kasei Co., Ltd., commodity Name: Α(^(10) cell 80' retarded phenolic antioxidant) was carried out in the same manner as in Example i to obtain a transparent resin composition pellet. The foaming property of the obtained particles was evaluated as a majority. Small bubbles, the result is blistering. ...and '3,9-bis(2·[3·(3-tert-butyltransyl-5-methylphenyl)propanyloxy]-1,1- Dimethylethyl)_2,4,8,1〇-tetraoxaspiro[5,5]deca-alkane is a compound represented by the following formula. (Comparative Example 4) Changing the antioxidant to _ system processing stability Mixture (4) is a mixture of & oxidizing agents, ie, ten people of alkyl-3-(3,5,2-di-third-4,-p-phenyl)propionate, tris(2,4-di- a mixture of a third butyl phenyl phosphite, and a 5,7-di-t-butyryl-3-(3,4-monomethylphenyl)-3H-benzofuran-2-one ( Chiba Speciality Chemicals (product name: Irgan〇x Ηρ292ι), except for the implementation of 隹·丨丨, to obtain a yellow transparent Resin composition particles. The foaming property of the obtained particles was evaluated, and many fine bubbles were observed, and as a result, foaming was observed. From the above examples and comparative examples, the examples 1 to 2 containing the specific antioxidant of the present invention were processed. When the heat stability was improved, a molded article in which no foaming was observed was obtained. In contrast, Comparative Example 1 containing no antioxidant, and Comparative Example 2 containing an antioxidant other than the specific antioxidant of the present invention 54 200821350 4, poor stability during processing' can only obtain a molded product containing a large number of bubbles. &lt;b value> The b値 of the optical film is measured by a color difference meter (manufactured by Sakamoto Electric Co., Ltd., trade name ND-1001DP) b値 represents the 1^ value of the Laber color system of Hunter, which is determined according to the method of 11828730. &lt;Film light transmittance&gt;

The film light transmittance was measured by using a spectrophotometer (Shimadzu Corporation name: UV-3 100) to measure the transmittance at 380 nm. &lt;Film Disadvantage&gt; The film defect was obtained by visually observing a film having a thickness of 20 cm x 20 cm of 9 〇 μιη, and averaging the number of defects of 2 〇 μηι or more. In addition, the size of the defect is measured by an optical microscope. The film defect is a defect that affects the appearance of the film, and contains foreign matter such as dust mixed in the environment, which occurs during the process, and is mixed with φ polymer gel, carbide, bubbles, and film surface. Damage, etc. (Example 3) Solution polymerization was carried out in the same manner as in Example i except that the monomer to be placed in the reaction vessel was set to 39 parts and the temperature was determined to be 3.5 parts by 7.5 RUVA-93. Further, in the cyclization condensation reaction, 5 parts of money 2_ethylhexanoacetic acid was changed to a phosphate hard acid Lai Chemical Industry Co., Ltd., trade name: phQsiex A_i8) • 5 parts, in addition to the implementation In the same manner, the cyclization condensation reaction was carried out in the same manner.

In the same manner as in Example 丨, the anti-oxidant sumimerer_GS 55 200821350 l was changed to 80 parts in the devolatilization operation of the extruder, and yellow transparent resin composition pellets were obtained. The weight average molecular weight of the polymer was 147,000, and the foaming property was evaluated, and foaming was hardly observed, which was good. Further, 90 parts of the above resin composition particles were used, using a uniaxial extruder having a l/D=36 composed of a full flight screw (t> 50 mm, a plurality of screw structures). 10 parts of AS resin (product name: Stylac AS783, manufactured by Asahi Kasei Chemicals Co., Ltd.) was melt-extruded at a cylinder set temperature of 26 (rc, at a treatment rate of 50 kg/h to prepare pellets a). 3 A) 'Add to the venting uniaxial extruder with φ65ηπη, L/D=32, resistance P early flight screw. The temperature of the particles (3 A), by adding The dehumidified air of the warm air is sent to the hopper and adjusted to about 60 ° C. In addition, a nitrogen introduction pipe is arranged in the lower part of the hopper, and nitrogen is introduced into the extruder, and the air is extracted from the exhaust port by UhPa OO mmHg. The barrier screw type screw is melted and kneaded. After melt-kneading, the pellet (3A) was cooled by a gear pump using a leaf disc filter having a filter area of 75.75 m2 and a filtration accuracy of 5 μπι, with a width of 700 mm T _ die, at 90 ° C. A film is formed on the roll. The temperature of the cylinder, the gear pump, the filter, and the T-die was set to 260 ° C, and the extrusion amount per unit time was set to 3 3 kg / hr, which was formed continuously for 3 hours. The obtained optical film had a film thickness of 9 〇 μm, 380 nm, a film light transmittance of 〇·3%, a 値·8, a glass transition temperature of 125 ° C, and a film defect of 4 / m 2 . (Example 4) The same procedure as in Example 3 was carried out in the same manner as in Example 3, except that the antioxidant sumilizer_GM was used in the devolatilization operation, and the same was carried out in the same manner as in the fresh 1 3 except for 56 200821350. Yellow transparent resin composition particles. Evaluation of foaming, almost no foaming, $ good. Further, in the same manner as in Example 3, resin and melt extrusion were carried out to prepare pellets (4A). The pellet (4A) obtained above was subjected to the same procedure as in Example 3, and a film was formed by a leaf disc type filter for 3 hours. The obtained optical film had a film thickness of 90 μΐ, a film light transmittance of 〇 3 at 38 〇 nm, a b value of 1·〇, a glass transition temperature of 125 Å, and a film defect of 19 岫2. (Comparative Example 5) The same procedure as in Example 3 was carried out until the solution polymerization and the cyclization condensation reaction were carried out, and in the same manner as in Example 3, except that the antioxidant Irganox 1010 was used in the devolatilization operation, a yellow transparent resin was obtained. Composition particles. Evaluation of the foaming property was observed as many fine bubbles, and as a result, foaming was observed. Further, in the same manner as in Example 3, the AS resin was melt-extruded to prepare pellets (5B). Further, the pellet (5B) obtained above was further subjected to the same procedure as in Example 3, and film formation was carried out for 3 hours through a leaf disc type filter. The obtained optical film thickness was 90 μm, the film light transmittance at 380 nm was 〇 3, the b value was 1.2, and the glass transition temperature was 123. 〇, the film has a disadvantage of 5 ❿ / ❿ 2 or more, and most of the bubbles are linear. (Example 5) Solution polymerization was carried out in the same manner as in Example i except that the amount of the monomer to be added to the reaction vessel was 40.5%, the amount was determined to be 6 parts, and the RUVA-93 was determined to be 3.5 parts. 57 200821350 Μ &quot; In the %, chemical condensation reaction, the 5 parts of 2-ethylhexyl phosphate 改为 was changed to the use of stearic acid _ 匕 工业 工业 工业 , , , , , , , , , , , , ex , ex ex ex ex ex ex ex ex ex ex 005 &amp; 'In addition to the above, a cyclization condensation reaction was carried out in the same manner as in Example i.

In the same manner as in Example 丨, the anti-oxidant sumilizer_GS was subjected to a devolatilization operation in the devolatilization operation of the extruder to obtain yellow transparent resin composition pellets. The weight average molecular weight of the polymer was 15 million, and the foaming property was evaluated almost. • No foaming was observed, which was good. A uniaxial extruder having a L/D=36 of a full-screw type screw having a Φ5〇πιηι and a plurality of threaded structures, and 90 parts of the resin composition particles, AS resin (made by Asahi Kasei Chemicals Co., Ltd., Product name: stylac AS783) 10 parts, at a cylinder set temperature of 26 〇 c &gt; c, melt-extruded at a treatment speed of 5 〇 kg / h to prepare granules (5A). The granules (5A) obtained above are added to a uniaxial extruder of L/D=30, which is a full-screw type screw of a φ50 mm, multi-threaded mixing section, and is 13 hPa (10 mmHg) from the exhaust port. The air is pumped and melt extruded by a T-shaped film provided at the exit of the extruder. The film thickness of the obtained optical film was 90 μm, the film light transmittance of 380 nm was 〇·4%, b値 was 〇_6, the glass transition temperature was 122 ° C, and the film defect was 50/m 2 or more. (Example 6) 45 parts of methyl methacrylate (mma) and 5 parts of ultraviolet absorbing monomer were added to a 30 L reaction pin equipped with a stirring device, a temperature sensor, a cooling tube, and a nitrogen introduction tube (Otsuka Chemical ( Co., Ltd., trade name: ruVA-93), 58 200821350 Toluene 5 parts, lining antioxidant (made by Asahi Kasei Co., Ltd., trade name: AdeCastab 2112) 0. 025 parts, n-dodecyl mercaptan 25 parts of 〇〇 份 〇 〇 氮气 氮气 氮气 氮气 氮气 氮气 氮气 氮气 氮气 氮气 氮气 氮气 氮气 氮气 氮气 氮气 氮气 氮气 氮气 氮气 氮气 氮气 氮气 氮气 氮气 氮气 氮气 氮气 AT AT AT AT AT AT AT AT AT AT AT AT AT AT AT AT AT AT The product name Lupasol 570) is 0.05 parts, and 0.10 parts of the third isonic acid isoammonium ester is added dropwise for 2 hours, and the bath polymerization is carried out under reflux (about 1〇5~11〇.〇), and further costs 5 Matured in hours. _ The polymer solution will be obtained at a cylinder temperature of 230 ° C, a rotation speed of 1 〇〇 rpm, a decompression degree of 13.3 to 400 hPa (10 to 300 mmHg), a number of rear exhaust ports, and a front exhaust port number of four ( From the upstream side, the exhaust port type screw twin-shaft extruder (the) called the second, third, fourth, and fourth exhaust ports (()) = 29.75 mm, L/D = 30), with resin The amount is converted into a processing speed of 2 〇kg/hour, and devolatilization is performed. In the devolatilization, 80 parts of an antioxidant (manufactured by Sumitomo Chemical Co., Ltd., trade name: Similizer-GS) was dissolved in 2 parts of toluene to form an antioxidant _ inactivating agent mixed solution, from the rear of the first exhaust port. The high-pressure pump was used to inject at a rate of 〇〇2 kg/hr, and at the same time, the high-pressure pump was used from the back of the third exhaust port to inject the ion parent water at an input speed of 0.01 kg/hour. By the above-mentioned devolatilization, it was obtained as a pale yellow transparent resin composition pellet. The glass transition temperature of the obtained pellet is 10 〇 9 ° C, the light transmittance at 38 〇 nm is 13%, the light transmittance at 500 nm is 98% or more, and the weight of the polymer in the composition of the tree 曰 曰The average molecular weight is ΙΟ(9)〇. As a result of evaluating the foaming property, it was slightly foamed, but it was still good. (Comparative Example 6) The antioxidant was changed to Irganox 1〇1〇 (trade name, chiba 59 200821350)

The same procedure as in Example 6 was carried out except that the chemicals of the resin composition were obtained. The evaluation of the foaming property of the obtained particles revealed that large bubbles were observed, and the result was foaming. (Example 7) In a 30 L reaction vessel equipped with a stirring device, a temperature sensor, a cooling tube, and a nitrogen introduction tube, 13 parts of methyl methacrylate (ΜΜΑ), n-stupyl maleimide was added. (ΡΜΙ) 5·75 parts, 2-(2,-hydroxy-5,-mercaptopropenyloxy)ylphenylbenzotriazole (manufactured by Otsuka Chemical Co., Ltd., trade name: RUVA-93) 3.5 parts, 25 parts of toluene, while adding nitrogen gas to the side to reach 100 ° C, and at the time of reflux, adding isopropyl isopropyl % i acid dibutyric acid as a starter (mox moxibustion) Share), trade name KAYACARBON BIC-75) 0.015 copies. Next, in the above reaction tank, 15·75 parts of decyl methacrylate, 5·75 parts of fluorenyl-fluorenyl fluorenyl imide, 6 parts of styrene, 25 parts of fluorene, and isopropyl citrate were used. A mixture of 1 part of butyl ester hydrazine and hydrazine was previously bubbled with nitrogen gas, and it was added dropwise over 3.5 hours, and solution polymerization was carried out under reflux (about 11 Torr), and it took another 3.5 hours to carry out the aging. The obtained polymer solution was at a cylinder temperature of 230 ° C, a rotation speed of 100 rpm, a decompression degree of 13.3 to 400 hPa (10 to 300 mmHg), a number of rear exhaust ports, and four front exhaust ports (from the upstream side). Exhaust-type screw twin-axis extruder (φ=29.75mm, L/D=3 0), which is called the first, second, third, and fourth exhaust ports, converted to 2 in terms of resin amount The processing speed of 〇kg/hour is introduced and devolatilization is performed. In the detachment, the high-pressure pump was used from the back of the third exhaust port to inject the ions into the water at the input speed of 〇.01kg/hour. By the above devolatilization operation, pale yellow transparent resin composition particles (7A) were obtained. The above-mentioned granules (7 Α) of 1 〇〇 parts by weight and slimiiizer_GS 〇.3 are used in the dry 搀, and are added to the ventilating single with φ65ηιηι, l/D=32, and the barrier thread type screw. Extruder. The temperature of the pellet (7A) is set to about 60 ° C by blowing the heated dehumidified air to the hopper. Further, a nitrogen gas introduction pipe was provided in the lower portion of the hopper, and nitrogen gas was introduced into the extruder. The Daxu exhaust port is pumped at 13hPa (1〇mmHg), and is melted and kneaded by the barrier thread type _ screw. After the melt-kneading, the granules (7A) are passed through a filter, an area of 〇·75m2, a transition precision of 5 μιη, and a 70-mm τ-type mold, at 9〇〇c A film is formed on the cooling roll. The temperature of the cylinder gear pump, the filter, and the T-die was set to 265. The extrusion amount between the units was set at 33 kg/hr for 3 hours. The obtained film of the film having a film thickness of 90 μm and 380 nm has a light transmittance of 〇 3%, b 値 of 1.5, a glass transition temperature of m〇c, and a film defect of 4 迤2. (Comparative Example 7) A film was formed through a polymer aerator in the same manner as in Example 7 except that the dry granules and the granules (7A) were changed to irgan 〇xl〇i 〇 0·3 parts. The film thickness of the obtained optical film is 90 μm, 38 〇nm, the light transmittance of the film is 3%·3%, b値 is 1.6, the glass transition temperature is 131, and the film defect is 5 〇/m2 or more. Most bubbles. In summary, the thermoplastic resin composition of the present invention containing a thermoplastic resin having a UV absorbing monomer unit and a specific antioxidant has ultraviolet absorbing ability, and has heat resistance, transparency, mechanical strength and processability of 200821350, and the like. At the same time, it is excellent in thermal stability at the time of high-temperature molding, and a molded article in which no foaming is observed can be obtained. (Industrial Applicability) The thermoplastic resin composition of the present invention has excellent ultraviolet absorbing ability and has characteristics such as heat resistance, transparency, mechanical strength, and moldability, especially in high temperature forming. Excellent, it can obtain unfoamed molded products, so it can be widely used in the need for transparency of the heart.

For materials or optical related applications, it is a great contribution to the field of optical materials, especially for applications that require UV absorption. &lt; [Simple description of the diagram] (None) [Explanation of main component symbols] (None)

62

Claims (1)

200821350 X. Patent application scope: 1 _ A thermoplastic resin composition containing a thermoplastic resin having an ultraviolet absorbing monomer unit and an antioxidant, characterized in that the antioxidant is represented by the formula (1) ) phenyl acrylate is an essential component: (In the formula (1), R1 is the same or different and represents a carbon number of 1 to 5; R2 is the same or different and represents an alkyl group having a carbon number of 丨8; and R3 represents a hydrogen atom or a carbon number of 1 to 8. Alkyl; R4 represents a halogen atom or a methyl group). 2. The thermoplastic resin composition according to claim 1, wherein the thermoplastic resin is a methacrylic resin. 3. The thermoplastic resin composition according to claim 1 or 2, wherein the thermoplastic resin has a ring structure in the main chain. 4. The thermoplastic resin composition of claim 3, wherein the thermoplastic resin has a ring structure in the main chain and a lactone ring structure represented by the formula (2). 63 200821350 i (wherein R5, R6 and R7 are the same or different and represent a hydrogen atom or an organic group having 1 to 20 carbon atoms). The thermoplastic resin composition according to any one of claims 1 to 4, wherein the thermoplastic resin composition has a glass transition temperature of 110 ° C or higher. A film or sheet formed of the thermoplastic resin composition of any one of claims 1 to 5. 7. The film or sheet of claim 6 which is an optical film or an optical sheet. 8. A method of producing a film or sheet, which is a film or sheet according to claim 6 or 7, wherein the forming step is carried out after the filtration treatment step with a polymer filter. ^--, pattern: (none) 64