JP2003200477A - Metallic tone resin molded product and method for molding metallic tone resin composition - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a metallic tone resin molded product which is free from a color tone change in a weld part or the like and has a uniform metallic tone appearance with a high brilliance and a superb physical property balance. <P>SOLUTION: The molded product is manufactured by molding a metallic touch resin composition obtained by blending 0.05 to 5.0 pts.wt. of filler for imparting a metallic color tone with 100 pts.wt. of styrene resin by an injection/ compression molding process or an injection press-molding process. The mold temperature T(°C) during molding is set within the range of T<SB>1</SB>≤T≤(T<SB>1</SB>+20) to T<SB>1</SB>(°C) of load deflection temperature by the ISO75 (A process) of the metallic tone resin composition, and the molded product is obtained by setting the melting temperature of the metallic tone resin composition at 200 to 280°C. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a vehicle interior / exterior component,
The present invention relates to a molding method of metallic tone resin moldings and metallic tone resin compositions which are preferably used for interior / exterior products, electrical appliances, office automation equipment, etc., and particularly to injection compression molding or injection press molding of metallic tone resin compositions. TECHNICAL FIELD The present invention relates to a metallic resin molded product formed by a method and a molding method.

[0002]

2. Description of the Related Art Conventionally, vehicle exterior parts such as door mirrors and garnishes, and vehicle interior parts such as center clusters are coated with acrylic or urethane metallic paint on the surface of molded products made of styrene resin. The one with improved design has been used. However, in such a coated product, a considerable amount of cost is required for the coating and the coating process, and it is desired to omit the coating process itself using an organic solvent or the like in order to protect the global environment.

On the other hand, not only in the field of automobiles, but as an alternative to metallic coating, metallic resin compositions having metallic luster with metallic feeling have been provided and are being widely adopted. The metallic resin composition is a resin composition in which particles having metallic luster such as metal particles are blended, and if such a metallic resin composition is used, only molding is performed and coating is not performed. It is possible to obtain a high-quality molded product with a good tone and excellent design.

However, when metal particles are mixed with styrene resin and injection-molded, the arrangement of the metal particles is disturbed at the weld part of the mold, etc., and this part has a color tone greatly different from the other parts. However, there is a serious drawback that the appearance of the obtained molded product is impaired.

In order to solve this problem, A having high fluidity is used.
Method of using BS resin composition (Japanese Patent Publication No. 59-4559)
No. 3, JP-B-59-42222) or a method of using metal particles having a specific particle diameter (JP-B-4-2793).
Although many proposals such as Japanese Patent No. 2) have been made, none of them is practically sufficient for solving the above problems.
In addition, in a recent report example, JP 2001-207062 A
A thermoplastic resin composition containing a fibrous filler is molded by a heat cycle molding method to obtain a molded product having no weld or flow unevenness, but a relatively large amount of fibrous filler or the like is added. However, there is a problem in that the impact strength and the like of the obtained molded product are greatly reduced.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art, to have a uniform metallic appearance with high brightness and no change in color tone at the welded portion, etc. Another object of the present invention is to provide a metallic-tone resin molded product which is also excellent.

[0007]

MEANS FOR SOLVING THE PROBLEMS The metallic resin molded article of the present invention is a filler for imparting a metallic color tone to 100 parts by weight of a styrene resin.
A molded product obtained by molding a metallic resin composition containing 0 parts by weight by an injection compression molding method or an injection press molding method, wherein the mold temperature T (° C) at the time of molding is T ₁ ≦ T ≦ (T ₁ +20) with respect to the deflection temperature under load T ₁ (° C.) of the resin composition according to ISO75 (method A)
And the melting temperature of the metallic resin composition at the time of molding is set to 200 to 280 ° C., and molding is performed.

The method for molding a metallic resin composition of the present invention comprises adding 0.05 to 5.0 parts by weight of a filler for imparting a metallic color tone to 100 parts by weight of a styrene resin. A method of molding a metallic resin composition by an injection compression molding method or an injection press molding method, wherein a mold temperature T (° C.) at the time of molding is a load of the metallic resin composition according to ISO75 (method A). Deflection temperature T
₁ (° C.) is set in the range of T ₁ ≦ T ≦ (T ₁ +20), and the melting temperature of the metallic resin composition at the time of molding is set to 200 to 280 ° C. for molding. Characterize.

In the present invention, the mold temperature T (° C.) during molding
With respect to the deflection temperature under load T ₁ (° C.) of the metallic resin composition according to ISO75 (method A), T ₁ ≦ T ≦ (T ₁
+20) and the melting temperature of the resin is 200
Since the temperature is set to 280 ° C., it is possible to easily obtain a molded product with a high surface appearance, that is, a metallic tone with high brightness and a metallic texture and in which no weld is conspicuous.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the metallic resin molded product and the method for molding a metallic resin composition of the present invention will be described in detail below.

First, the metallic resin composition according to the present invention will be described.

The styrenic resin used in the metallic resin composition according to the present invention contains an aromatic vinyl monomer as an essential component and, if necessary, other vinyl monomers copolymerizable with them. It is a styrene resin obtained by polymerizing at least one selected from rubbery polymers.

The aromatic vinyl monomer used in the styrene resin component is styrene, α-methylstyrene, o-methylstyrene, p-methylstyrene, vinylxylene, ethylstyrene, dimethylstyrene, p-t.
Examples thereof include styrene derivatives such as ert-butylstyrene, vinylnaphthalene, methoxystyrene, monobromostyrene, dibromostyrene, fluorostyrene and tribromostyrene, and styrene is particularly preferable. These aromatic vinyl monomers may be used alone or in combination of two or more.

Other vinyl monomers copolymerizable with such aromatic vinyl monomers include vinyl cyanide monomers such as acrylonitrile and methacrylonitrile, and acrylic acid such as phenyl acrylate and benzyl acrylate. Aryl ester, methyl acrylate, ethyl acrylate, propyl acrylate, butyl acrylate,
Acrylic alkyl esters such as amyl acrylate, hexyl acrylate, 2-ethylhexyl acrylate, octyl acrylate, cyclohexyl acrylate, dodecyl acrylate, methacrylic acid aryl esters such as phenyl methacrylate and benzyl methacrylate, methyl methacrylate, ethyl methacrylate, propyl methacrylate, butyl methacrylate. ,
Amyl methacrylate, hexyl methacrylate, 2-
Ethylhexyl methacrylate, octyl methacrylate, cyclohexyl methacrylate, dodecyl methacrylate and other methacrylic acid alkyl esters, glycidyl methacrylate and other epoxy group-containing methacrylic acid esters, maleimide, N-methyl maleimide, N-phenyl maleimide and other maleimide monomers, acrylic acid , Α, β-unsaturated carboxylic acids such as methacrylic acid, maleic acid, maleic anhydride, phthalic acid and itaconic acid, and anhydrides thereof. These vinyl monomers may be used alone or in combination of two or more.

As the rubbery polymer copolymerizable with the aromatic vinyl monomer, polybutadiene, polyisoprene, styrene / butadiene random copolymers and block copolymers, acrylonitrile / butadiene copolymers, and acrylics can be used. Copolymer of acid alkyl ester or methacrylic acid alkyl ester and butadiene, butadiene
Diene-based copolymers such as isoprene copolymer, ethylene
Copolymer of ethylene and α-olefin such as propylene random copolymer and block copolymer, random copolymer of ethylene / butene and block copolymer, ethylene / methacrylate copolymer, ethylene / butyl acrylate copolymer Copolymers of ethylene and unsaturated carboxylic acid esters such as polymers, copolymers of ethylene and aliphatic vinyl such as ethylene / vinyl acetate copolymers, ethylene and propylene such as ethylene / propylene / hexadiene copolymers Non-conjugated diene terpolymer, acrylic rubber such as polybutyl acrylate, and composite rubber having a structure in which the polyorganosiloxane rubber component and the polyalkyl (meth) acrylate rubber component are intertwined with each other so that they cannot be separated. (Hereinafter referred to as “IPN type rubber”) and the like. These rubbery polymers may be used alone or in combination of two or more.

Examples of the styrene-based resin used in the present invention include polystyrene, styrene-butadiene-styrene copolymer (SBS), hydrogenated styrene-butadiene.
Styrene copolymer (hydrogenated SBS), hydrogenated styrene-isoprene-styrene copolymer (SEPS), high impact polystyrene (HIPS), acrylonitrile-styrene copolymer (AS resin), acrylonitrile-butadiene-
Styrene copolymer (ABS resin), methyl methacrylate / butadiene / styrene copolymer (MBS resin), methyl methacrylate / acrylonitrile / butadiene /
Examples include styrene copolymer (MABS resin), acrylonitrile / acrylic rubber / styrene copolymer (AAS resin), acrylonitrile / ethylene propylene rubber / styrene copolymer (AES resin), and styrene / IPN rubber copolymer. To be In the present invention, one of these styrene resins may be used alone or two or more of them may be used as a mixture. The styrene-based thermoplastic resin may have high stereoregularity such as syndiotactic polystyrene by using a catalyst such as a metallocene catalyst during the production thereof. Further, in some cases, a polymer or copolymer having a narrow molecular weight distribution, a block copolymer, a polymer having high stereoregularity, or a copolymer obtained by a method such as anion living polymerization or radical living polymerization is used. It is also possible.

Among these, styrene resins include polystyrene (PS) and high impact polystyrene (HIP).
S), acrylonitrile / styrene / styrene copolymer (AS resin), methylmethacrylate / butadiene / styrene copolymer (MBS resin), acrylonitrile / butadiene / styrene copolymer (ABS resin) are preferable, and ABS
Resins are most preferred.

The ABS resin is a thermoplastic graft copolymer obtained by graft-polymerizing a vinyl cyanide compound and an aromatic vinyl compound on a diene rubber component, or such a thermoplastic graft copolymer is free without being grafted. It is a mixture of a copolymer of a vinyl cyanide compound and an aromatic vinyl compound in the above state.

As the diene rubber component forming the ABS resin, for example, the glass transition point of polybutadiene, polyisoprene, styrene-butadiene copolymer and the like is 10 ° C.
The following rubbers are used, and the ratio is ABS resin component 10
It is preferably 5 to 80% by weight in 0% by weight, and particularly preferably 10 to 50% by weight. As the vinyl cyanide compound and the aromatic vinyl compound, those mentioned above can be mentioned, and as the vinyl cyanide compound, acrylonitrile is particularly preferably used. Further, as the aromatic vinyl compound, particularly styrene and α-
Methylstyrene can be preferably used. The ratio of the vinyl cyanide compound and the aromatic vinyl compound in the ABS resin is 95 to 50% by weight in 100% by weight of the ABS resin component.
Is preferable, and particularly preferably 70 to 90% by weight.
The proportions of the vinyl cyanide compound and the aromatic vinyl compound in the ABS resin are 5 to 50% by weight of the vinyl cyanide compound and 95 to 50% by weight of the aromatic vinyl compound based on 100% by weight of the total amount of these compounds. It is preferable.

For the ABS resin, methyl (meth) acrylate, ethyl acrylate, maleic anhydride, N-substituted maleimide and the like can be mixed and used as a part of the components grafted to the diene rubber component. The content ratio of is preferably 15% by weight or less in the ABS resin component. Further, as the initiator, chain transfer agent, emulsifier, etc. used in the reaction, various conventionally known ones can be used if necessary.

In the ABS resin according to the present invention, the rubber particle size is preferably 0.1 to 5.0 μm, more preferably 0.3 to 3.0 μm, and particularly preferably 0.4 to 1.5.
μm. As for the distribution of the rubber particle diameter, both a monomodal distribution and a distribution having a plurality of peaks of two or more peaks can be used, and the rubber particles have a single phase in the morphology. Alternatively, it may have a salami structure by containing an occluded phase around the rubber particles, but preferably, the proportion of rubber particles forming a single phase is large.

It is well known in the art that the ABS resin contains a vinyl cyanide compound and an aromatic vinyl compound which are not grafted to the diene rubber component, and the ABS resin of the present invention is also suitable for such polymerization. It may contain a free polymer component generated in the above. The molecular weight of the copolymer composed of such a free vinyl cyanide compound and aromatic vinyl compound is preferably 0.2 to 1.0 in intrinsic viscosity, more preferably 0.2.
It is 5 to 0.5.

The proportion of the grafted vinyl cyanide compound and the aromatic vinyl compound in the ABS resin is preferably 20 to 200%, more preferably 50 to 100% of the diene rubber component. Is.

The ABS resin may be produced by any of bulk polymerization, suspension polymerization and emulsion polymerization. The copolymerization may be carried out in a single stage or in multiple stages. . Further, a blend of the ABS resin obtained by such a production method and a vinyl compound copolymer obtained by separately copolymerizing an aromatic vinyl compound and a vinyl cyanide component can also be preferably used.

The filler for imparting a metallic color tone to be blended with the styrene resin (hereinafter referred to as "metallic filler") has a function of imparting a metallic color tone to the resin composition. There is no particular limitation as long as it is, for example, a flat shape such as aluminum foil or glass flakes with metal coating, so-called metallic pigment,
Spherical aluminum pigments used to improve the appearance of welds, mica powder for pearly metallic pigments, copper, brass powders for obtaining bronze color, and other metals such as glass are plated or sputtered with polyhedral metal particles. And the like. Examples of the above-mentioned inorganic polyhedral particles include glass, those obtained by crushing a glass thin film, and metals. As a metal, N
i, Al, Ag, Cu, Cr, Zn, Sn, Pb, C
o, Fe, Mo, Mn, W, Au, Ti, Sb, Si,
Pt, Mg and the like can be mentioned, and at least one metal selected from these, or alloys, oxides, nitrides, sulfides and other compounds thereof, and mixtures thereof can be used.

Thus, the metallic filler is a metal,
Alternatively, it may be a metal compound itself, or may be a metal or metal compound deposited on glass or mica by plating, vapor deposition, or another method. In addition, those covered with organic substances such as fatty acids or covered with titanium oxide, silica, etc. to protect the metal surface are included, and the color tone of the metallic resin molded product obtained differs depending on the metallic filler used. The metallic filler is appropriately selected and used according to the desired color tone. In addition to the metallic filler, usually, existing colorants to be mixed with the resin and these metallic fillers are combined, and each type,
It is also possible to obtain a desired color tone by appropriately adjusting the amount.

The shape of the metallic filler to be mixed with the styrene resin is not particularly limited, but the shape and size are selected such that the metallic filler is spherical, the particle size is as large as possible, and the metallic filler is oriented. It is preferable to use a material having no directionality because the unevenness of appearance can be further prevented.

When the metallic filler has, for example, a flat shape, it has an average particle diameter of 10 to 1000 μm and an aspect ratio of 3.
-100, especially about 5-30 are preferable, and in the case of a spherical shape, those having an average particle size of about 10-500 μm are preferable.

If the mixing ratio of such a metallic filler is excessively large, defective molding is likely to occur, and on the contrary, if the mixing ratio is excessively small, a sufficient color tone due to the metallic filler cannot be obtained. The amount is 0.05 to 5.0 parts by weight, preferably 0.1 to 3 parts by weight, based on 100 parts by weight of the styrene resin.

In the metallic resin composition used in the present invention, known antioxidants, flame retardants, ultraviolet absorbers, lubricants, plasticizers, release agents, and
Antistatic agents, colorants (pigments, dyes, etc.), glass fibers,
Inorganic fillers such as kaolin, barium sulfate, graphite, molybdenum disulfide, conductive materials such as carbon fibers and stainless fibers, flame retardant aids such as antimony compounds, antibacterial agents, antifungal agents, silicone oils, coupling agents, You may mix | blend various additives, such as.

In the present invention, the metallic resin composition containing the styrene resin and the metallic filler is molded into various molded articles by the injection compression molding method or the injection press molding method.

Here, the injection compression molding method or the injection press molding method is generally included in a kind of injection molding method called an injection low pressure molding method, and is preliminarily low pressure clamped and closed in a mold. It is called injection compression molding when the molten resin is injected and filled into the mold and then compressed on the mold clamping side.In addition, the molten resin is injected and filled between the two molds that are held in an unclosed state in advance, and then the mold is clamped. The case of performing compression on the side is referred to as injection press molding, and the step of compressing the mold, which is common to both molding methods (for example, the compression interval is 5 mm or more and 30 m or more).
m or less), a number of improved methods of the above both molding methods have been proposed. These injection low-pressure molding methods are characterized in that the shearing stress of the resin at the time of filling is low and that the resin can be cooled with a substantially uniform pressure after filling, so that the residual strain is small and the deformation is small. Low-pressure mold is injected and filled with molten resin in a closed mold or between both molds that are held in an unclosed state, and compressed on the mold clamping side during or after the filling. Therefore, the injection compression molding method or the injection press molding method, and the improved molding method thereof are also included.

As the injection compression (press) molding machine used in the injection compression molding or the injection press molding in the present invention, a direct pressure type mold clamping mechanism is preferable, and a toggle type machine can also be used. Further, a mold equipped with a compression hydraulic cylinder or the like can also be preferably used. In the present invention, it is important to control the injection speed by the stroke, and it is necessary to equip the injection control mechanism.

In the present invention, the following conditions and are adopted as the injection compression or injection press molding conditions in such a molding process.

The mold temperature T (° C.) is the deflection temperature under load of the metallic resin composition according to ISO75 (method A) (hereinafter, simply referred to as “deflection temperature under load”) T ₁ (° C.)
With respect to T ₁ ≦ T ≦ (T ₁ +20), preferably T ₁ ≦
The range is T ≦ (T ₁ +15). By controlling the mold temperature T (° C) within this range, a high surface appearance,
That is, it is possible to easily obtain a molded product with high brightness and metallic texture and inconspicuous metallic tone and weld. Mold temperature T (° C) is deflection temperature under load T ₁ (° C)
If it is less than, not only is it difficult to obtain a metallic texture, but also the conspicuous weld line becomes (T + 2
If the temperature exceeds 0) ° C., the molded product is deformed and a good product cannot be obtained.

The melting temperature of the resin is set to 200 to 280 ° C. That is, the melting temperature of the resin is 200 to
The cylinder temperature of the molding machine is controlled so that the temperature becomes 280 ° C. When the melting temperature of the resin is within this range, the surface appearance of the obtained molded product is highly sophisticated and the moldability is improved. If the melting temperature is less than 200 ° C., not only is it difficult to obtain a metallic texture, but also the weld lines are noticeable, and if the melting temperature exceeds 280 ° C., the welds are less noticeable, but with deterioration of the resin and pigment. Only molded products lacking metallic texture can be obtained.

The molded article of the present invention thus obtained has a metallic tone with a high-luminance feeling, has a high degree of surface appearance with little conspicuous welds, impact resistance, heat resistance, and molding resistance. Since the present invention is excellent in physical properties such as fluidity and rigidity, according to the present invention, it is possible to realize the non-painting of the conventional parts to which the metallic coating is applied. The molded product of the present invention includes, for example, automobile interior / exterior parts such as a radiator grill, a door mirror housing, a side molding, a rear garnish, an audio device housing such as an MD and a CD, a home electric appliance housing such as a cleaner, a telephone, and a door of a refrigerator. It can be suitably used for sanitary items such as toilets, vanities, bath tubs, and toys such as robots and models.

[0038]

EXAMPLES The present invention will be described in more detail below with reference to Examples and Comparative Examples, but the present invention is not limited to the following Examples unless it exceeds the gist.

In the following, "part" means "part by weight".
Shall mean.

The following styrene resins are used, and the deflection temperature under load of these styrene resins is ISO
It was measured according to 75 (method A). ABS resin (manufactured by Ube Cycon Co., Ltd .: EX190, deflection temperature under load; 85 ° C.) ASA resin (manufactured by Ube Cycon Co., Ltd .: MAX25, deflection temperature under load; 78 ° C.) AES resin (manufactured by Ube Cycon Co., Ltd .: UH90, Deflection temperature under load; 95 ° C) HIPS resin (manufactured by Japan Polystyrene Co .: H550, deflection temperature under load; 72 ° C)

Example 1 As shown in Table 1, 100 parts of ABS resin (EX190), 0.2 part of aluminum powder (average particle size: 40 μm, aspect ratio: 8), and 0.02 part of phthalocyanine blue as a colorant. Was put into a tumbler and mixed, and the mixture was passed through an extruder to obtain metallic resin pellets. The pellets are molded by a molding machine (Ube Industries, Ltd .: PZIII 350-
I18A), a side cover for a motorcycle was molded by an injection compression molding method. Here, the cylinder temperature of the molding machine is set to 240 ° C., and the set temperature of the mold used is
85- (85
It was set to 100 ° C, which is within the range of +20) ° C.

Example 2 The resin used was changed to ASA resin (MAX25), and the mold set temperature was 78 with respect to the deflection temperature under load of the resin used, 78 ° C.
Molding was carried out in the same manner as in Example 1 except that the temperature was changed to 90 ° C, which is within the range of (78 + 20) ° C.

Example 3 Molding was performed in the same manner as in Example 1 except that the resin used was changed to AES resin (UH90), the cylinder temperature of the molding machine was changed to 270 ° C., and the mold temperature was changed to 110 ° C. .

Example 4 Molding was carried out in the same manner as in Example 1 except that the resin used was changed to HIPS resin (H550), the cylinder temperature of the molding machine was changed to 200 ° C, and the mold set temperature was changed to 80 ° C. It was

Example 5 100 parts of ABS resin (EX190), 0.2 part of aluminum powder and 0.0 of phthalocyanine blue as a colorant.
Molding was performed in the same manner as in Example 1 except that 1.0 part of mica was also added when 2 parts were added to the tumbler.

Example 6 Molding was performed in the same manner as in Example 1 except that the injection compression molding method was changed to the injection press molding method.

Comparative Example 1 Molding was carried out in the same manner as in Example 1 except that the molding method in Example 1 was a normal injection molding method.

Comparative Example 2 In Example 1, the blending amount of aluminum powder was 0.0.
Molding was performed in the same manner as in Example 1 except that the amount was changed to 1 part.

Comparative Example 3 In Example 1, the blending amount of the aluminum powder was 5.5.
Molding was performed in the same manner as in Example 1 except that the parts were changed.

Comparative Examples 4 and 5 Molding was carried out in the same manner as in Example 1 except that the mold temperature was changed as shown in Table 2.

Comparative Examples 6 and 7 Molding was carried out in the same manner as in Example 1 except that the cylinder temperature of the molding machine was changed so that the melting temperature was as shown in Table 2. .

With respect to the molded articles obtained in Examples 1 to 6 and Comparative Examples 1 to 7, the appearance was visually observed to find out whether the metal texture was good or bad (good = ○, slightly inferior = Δ, bad = ×) and the weld line. Presence / absence (absence = ○, existence = ×) was examined, and the results are shown in Tables 1 and 2. In addition, Suga Test Instruments Co., Ltd. digital goniophotometer U
Gloss was measured by GV-5D (incident angle 60 °, reflection angle 60 °), and the results are shown in Table 1.

In Comparative Example 5, the above-mentioned evaluation was not carried out because the obtained molded product was deformed.

[0054]

[Table 1]

[0055]

[Table 2]

From Tables 1 and 2, it is understood that according to the present invention, it is possible to mold a metallic resin molded article having a good appearance.

[0057]

As described in detail above, according to the present invention, high brightness, less conspicuous welds and the like, remarkably good surface appearance, impact resistance, heat resistance, fluidity during molding, Provided is a metallic resin molded product having excellent physical properties such as rigidity. Therefore, according to the present invention, it is possible to provide a metallic tone resin molded product excellent in designability, aesthetics, and high quality without painting, and to improve the productivity of these products and to significantly reduce the manufacturing cost. It will be possible.

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) // B29K 25:00 B29K 25:00 105: 16 105: 16 (72) Inventor Koji Moriyama Ube City, Yamaguchi Prefecture Oki Ube 525-14 U-Beikon Co., Ltd. Ube factory F-term (reference) 4F202 AA13 AB11 AF14 AH17 AH42 AH51 AM36 AR06 CA11 CB01 CK18 CN01 4F206 AA13 AB11 AF14 AH17 AH42 AH51 AM36 AR06 AR15 JA03 JF01 JF02 JF43 JL48 J02 JN32 JL48 J02 4J002 BC031 BC061 BN071 BN121 BN141 BN151 BN161 DA066 DA076 DA096 DJ056 DL006 FA016 FD016 FD206 GC00 GL00 GQ00

Claims (2)

[Claims] 1. A filler for imparting a metallic color tone to 100 parts by weight of a styrene resin in an amount of 0.05 to.
A molded product obtained by molding a metallic resin composition containing 5.0 parts by weight by an injection compression molding method or an injection press molding method, wherein a mold temperature T (° C.) at the time of molding is Deflection temperature T under load of metallic resin composition according to ISO75 (A method)
It is set within the range of T ₁ ≦ T ≦ (T ₁ +20) with respect to ₁ (° C.), and the melting temperature of the metallic resin composition at the time of molding is 20.
A metallic resin molded product, characterized by being molded at a temperature of 0 to 280 ° C. 2. A filler for imparting a metallic color tone to 100 parts by weight of a styrene resin, 0.05 to
A method for molding a metallic resin composition containing 5.0 parts by weight by an injection compression molding method or an injection press molding method, wherein the mold temperature T (° C.) at the time of molding is the metallic resin. Deflection temperature T of the composition under load according to ISO75 (method A)
It is set within the range of T ₁ ≦ T ≦ (T ₁ +20) with respect to ₁ (° C.), and the melting temperature of the metallic resin composition at the time of molding is 20.
A method for molding a metallic resin composition, which comprises molding at 0 to 280 ° C.