JPS60233106A - Optical disk material - Google Patents
Optical disk materialInfo
- Publication number
- JPS60233106A JPS60233106A JP59089227A JP8922784A JPS60233106A JP S60233106 A JPS60233106 A JP S60233106A JP 59089227 A JP59089227 A JP 59089227A JP 8922784 A JP8922784 A JP 8922784A JP S60233106 A JPS60233106 A JP S60233106A
- Authority
- JP
- Japan
- Prior art keywords
- hydrogen atom
- substituted
- formula
- present
- group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 22
- 239000000463 material Substances 0.000 title claims abstract description 13
- 229920000642 polymer Polymers 0.000 claims abstract description 19
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 11
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 10
- KNCYXPMJDCCGSJ-UHFFFAOYSA-N piperidine-2,6-dione Chemical group O=C1CCCC(=O)N1 KNCYXPMJDCCGSJ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 125000003118 aryl group Chemical group 0.000 claims abstract description 9
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 8
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 15
- 125000004432 carbon atom Chemical group C* 0.000 claims description 6
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 8
- 239000004926 polymethyl methacrylate Substances 0.000 description 7
- 238000001746 injection moulding Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 4
- 239000004793 Polystyrene Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229920002223 polystyrene Polymers 0.000 description 4
- 238000002834 transmittance Methods 0.000 description 4
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 239000004417 polycarbonate Substances 0.000 description 3
- 229920000515 polycarbonate Polymers 0.000 description 3
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 description 2
- -1 acrylic ester Chemical class 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- JHPBZFOKBAGZBL-UHFFFAOYSA-N (3-hydroxy-2,2,4-trimethylpentyl) 2-methylprop-2-enoate Chemical compound CC(C)C(O)C(C)(C)COC(=O)C(C)=C JHPBZFOKBAGZBL-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- JLBJTVDPSNHSKJ-UHFFFAOYSA-N 4-Methylstyrene Chemical compound CC1=CC=C(C=C)C=C1 JLBJTVDPSNHSKJ-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- PEEHTFAAVSWFBL-UHFFFAOYSA-N Maleimide Chemical compound O=C1NC(=O)C=C1 PEEHTFAAVSWFBL-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000000921 elemental analysis Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 description 1
- VANNPISTIUFMLH-UHFFFAOYSA-N glutaric anhydride Chemical compound O=C1CCCC(=O)O1 VANNPISTIUFMLH-UHFFFAOYSA-N 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- OHKMMGQOYMXKBT-UHFFFAOYSA-N propan-2-yl n-(3-chlorophenyl)carbamate;propan-2-yl n-phenylcarbamate Chemical compound CC(C)OC(=O)NC1=CC=CC=C1.CC(C)OC(=O)NC1=CC=CC(Cl)=C1 OHKMMGQOYMXKBT-UHFFFAOYSA-N 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、光学ディスク材料に関するものである。さら
に詳しくは熱変形温度に代表される耐熱性および透明性
が優れ、複屈折が小さい光学ディスク材料に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to optical disc materials. More specifically, the present invention relates to an optical disk material that has excellent heat resistance as typified by heat distortion temperature, excellent transparency, and low birefringence.
〈従来の技術〉
一般にプラスチック材料は軽量で、耐衝撃性、加工性お
よび大量生産性が優れることから、近年光ファイバー、
光学ディスクおよび光学レンズ等の光学素子用材料とし
ての需要が拡大しつつある。<Conventional technology> In general, plastic materials are lightweight, have excellent impact resistance, processability, and mass productivity, so in recent years optical fibers,
Demand for materials for optical elements such as optical disks and optical lenses is increasing.
これら光学素子用プラスチック材料としては、現在、ポ
リメタクリル酸メチル、ポリスチレンわよびポリカ−ホ
不−トなどの透明性樹脂が主に用いられている（特公昭
４３−８９７８号公報、「日経エレクトロニクス」第２
９２ ％ 、第１３３頁、１９８２年６月７日発行）。Currently, transparent resins such as polymethyl methacrylate, polystyrene, and polycarbonate are mainly used as plastic materials for these optical elements (Japanese Patent Publication No. 43-8978, "Nikkei Electronics"). Second
92%, page 133, published June 7, 1982).
〈発明が解決しようとする問題点〉
しかるにポリメタクリル酸メチルおよびポリスチレンは
熱変形、温度に代表される耐熱性が劣る。ため、高温条
件下での使用に耐えない問題がある。<Problems to be Solved by the Invention> However, polymethyl methacrylate and polystyrene have poor heat resistance, typified by thermal deformation and temperature. Therefore, there is a problem that it cannot withstand use under high temperature conditions.
また、ポリカーボネートは耐熱性は優れるものの溶融流
動性が劣るため、成形性が悪く、また成形歪に起因する
複屈折が大゛きいという問題がある。Further, although polycarbonate has excellent heat resistance, it has poor melt flowability, resulting in poor moldability and large birefringence caused by molding distortion.
特に光学ディスクにおいては、その用途がヒテオテイス
ク、オーディオディスク、ファイル用ディスク等の高度
な精密さを要するものであるため、より高度な耐熱性お
よび透明性が要求され、とりわけ複屈折も小さいもので
あることが要求される。In particular, optical discs require a high degree of precision, such as optical discs, audio discs, and file discs, so higher heat resistance and transparency are required, and especially low birefringence. This is required.
従って、これらの要求を十分満足し得る光学ディスク材
料はまだ見出されていない。Therefore, an optical disc material that can fully satisfy these requirements has not yet been found.
本発明者らは、上記要求を同時に満足する高性能な光学
ディスク材料を提供することｉ目的として鋭意検討した
結果、特定の組成を有するポリグルタルイミド系重合体
からなる光学ディスクは、熱変形温度に代表される耐熱
性および透明性が優れ、しかも複屈折が小さいことを見
出し本発明に到達した。The inventors of the present invention have conducted extensive studies with the aim of providing a high-performance optical disc material that satisfies the above requirements at the same time. As a result, an optical disc made of a polyglutarimide polymer having a specific composition has a heat deformation temperature of The present invention was achieved by discovering that it has excellent heat resistance and transparency as typified by, and low birefringence.
〈問題点を解決するための手段および作用〉すなわち、
本発明は下記（１）式で表わされるグルタルイミド単位
３〜９０重量％および下記（１）式で表わされるアクリ
リック単位９７〜ＩＯ重量％を有するポリグルタルイミ
ド系重合体からなる光学ディスク材料を提供するもので
ある。<Means and actions for solving the problem> That is,
The present invention provides an optical disc material made of a polyglutarimide polymer having 3 to 90% by weight of glutarimide units represented by the following formula (1) and 97 to IO weight% of acrylic units represented by the following formula (1). It is something to do.
３
（（１）式中、ＲＩおよびＲ２は水素原子またはメチル
基を、Ｒ３は水素原子、炭素数１〜２０の置換または非
置換のアルキル基またはアリール基を表わす。）４
−ＣＨ２−Ｃ−
１・・・拳−（Ｉｔ）
（（ＩＩ）式中、Ｒ４は水素原子またはメチル基、Ｒ５
は水素原子、炭素数１−１０の置換または非置換のア３
−
ルキル基またはアリール基を表わす。）本発明において
光学ディスクとは、光を透過または反射することによっ
て機能を発揮するディスクを意味し、具体的にはビデオ
ディスク、オーディオディスクおよびファイル用ディス
クなどが挙げられる。3 (In formula (1), RI and R2 represent a hydrogen atom or a methyl group, and R3 represents a hydrogen atom or a substituted or unsubstituted alkyl group or aryl group having 1 to 20 carbon atoms.) 4 -CH2-C- 1...Fist-(It) (In the formula (II), R4 is a hydrogen atom or a methyl group, R5
is a hydrogen atom, substituted or unsubstituted a3 having 1-10 carbon atoms
- Represents an alkyl group or an aryl group. ) In the present invention, the optical disc refers to a disc that functions by transmitting or reflecting light, and specifically includes video discs, audio discs, and file discs.
本発明で用いるポリグルタルイミド系重合体自体は既に
公知である（例えば、特公昭５２−６３９８９号公報）
。The polyglutarimide polymer itself used in the present invention is already known (for example, Japanese Patent Publication No. 52-63989).
.
本発明で用いるポリグルタルイミド系重合体は、下記式
（１）で表わされるグルタルイミド単位（グルタルイミ
ド単位（１））および下記式（１）で表わされるアクリ
リック単位（アクリリック単位（１））からなる。The polyglutarimide polymer used in the present invention is composed of a glutarimide unit (glutarimide unit (1)) represented by the following formula (1) and an acrylic unit (acrylic unit (1)) represented by the following formula (1). Become.
４−
４
曜
グルタルイミド単位（１）においてＲ１およびＲ２は水
素原子またはメチル基を表わす。Ｒ１は水素原子、炭素
数１〜２０の置換または非置換のアルキル基またはアリ
ール基を表わし、具体例としては水素原子、メチル基、
エチル基、ｔ−ブチル基およびフェニル基などが挙げら
れる。4-4 In the glutarimide unit (1), R1 and R2 represent a hydrogen atom or a methyl group. R1 represents a hydrogen atom, a substituted or unsubstituted alkyl group or aryl group having 1 to 20 carbon atoms, and specific examples include a hydrogen atom, a methyl group,
Examples include ethyl group, t-butyl group, and phenyl group.
アクリリック単位（１）はアクリル酸、メタアクリル酸
、アクリル酸エステル、メタアクリル酸エステルから誘
導された単位をいい、アクリリック単位（１）において
Ｒ４は水素原子またはメチル基を表わす。Ｒ５は水素原
子、炭素数１〜ｌＯの置換または非置換のアルキル基ま
たはアリール基を表わす。The acrylic unit (1) refers to a unit derived from acrylic acid, methacrylic acid, acrylic ester, or methacrylic ester, and R4 in the acrylic unit (1) represents a hydrogen atom or a methyl group. R5 represents a hydrogen atom, a substituted or unsubstituted alkyl group or aryl group having 1 to 10 carbon atoms.
Ｒ５の具体例としては水素原子、メチル基、エチル基、
プロピル基、ブチル基、ノクロヘキシル基などが挙げら
れ、なかでも好ましくは水素原子またはメチル基が用い
られる。Specific examples of R5 include a hydrogen atom, a methyl group, an ethyl group,
Examples include a propyl group, a butyl group, a nochlorohexyl group, and among them, a hydrogen atom or a methyl group is preferably used.
本発明で用いるポリグルタルイミド系重合体においてグ
ルクルイミド単位（１）とアクリリック単位（１）の割
合は（１）が３〜９０重量％、好ましくは１０〜８５重
量％に対して（ＩＩ）が９７〜ＩＯ重量％、好ましくは
９０〜１５重量％である。（１）が３重量％未満では熱
変形温度が低く本発明の効果が十分発揮されない。（１
）が９０重量％を越えると、透明性が低下し、複屈折が
大きくなるので好ましくない。In the polyglutarimide polymer used in the present invention, the ratio of glucurimide units (1) to acrylic units (1) is 3 to 90% by weight, preferably 10 to 85% by weight of (1), and 97% by weight of (II). ~IO wt%, preferably 90-15 wt%. If (1) is less than 3% by weight, the heat distortion temperature will be low and the effects of the present invention will not be fully exhibited. (1
) exceeds 90% by weight, which is undesirable because transparency decreases and birefringence increases.
また、上記グルタルイミド単位（１）およびアクリリッ
ク単位（ＩＩ）のほかに、本発明の効果を損なわない範
囲でスチレン、σ−メチルスチレン１ ｐ−メチルスチ
レンおよびｐ−ｔ−ブチルスチレノなどの芳香族ヒニル
系単量体、アクリロニトリルおよびメタクリロニ１−リ
ルなどのファン化ビニル系単量体、無水マレイノ酸およ
びマレイミド系単量体等を共重合したものを用いること
もできる。In addition to the above-mentioned glutarimide unit (1) and acrylic unit (II), aromatic hinyl units such as styrene, σ-methylstyrene 1, p-methylstyrene, and pt-butylstyrene may also be used within a range that does not impair the effects of the present invention. It is also possible to use copolymers of fanned vinyl monomers such as acrylonitrile and methacryloni-1-lyl, maleinoic anhydride, and maleimide monomers.
本発明で用いるポリグルタルイミド系重合体の製造法に
関しては特に制限はないが、通常は特開昭５２−６３９
８９ｆｔ公報で提案されているようなポリメタクリル酸
メチルなどのアクリル酸重合体をアンモニアまたはメチ
ルアミン、エチルアミンなどの第一アミンを押出機中で
反応させ、グルタルイミド環を形成する方法や特公昭５
８−７１９２８弓公報で提案されているようなグルタル
酸無水物系重合体をイミド化する方法によって製造でき
る。There are no particular restrictions on the method for producing the polyglutarimide polymer used in the present invention, but it is usually
A method of forming a glutarimide ring by reacting an acrylic acid polymer such as polymethyl methacrylate with ammonia or a primary amine such as methylamine or ethylamine in an extruder as proposed in Japanese Patent Publication No. 89ft,
It can be produced by the method of imidizing a glutaric anhydride polymer as proposed in Japanese Patent No. 8-71928.
本発明の光学ディスクは常法によって製造することがで
きる。すなわち、本発明のポリグルタルイミド系重合体
を用いてビデオディスク、オーテイオテイスク、ファイ
ル用ディスクなど目的に応し、所定の形状および旧法の
光学ディスク用基盤を射出成形、圧縮成形などの方法で
成形し、その基盤に所定の加工、後処理を施すことによ
って、目的とする光学ディスクを製造することができる
。The optical disc of the present invention can be manufactured by conventional methods. That is, the polyglutarimide polymer of the present invention can be used to mold substrates for optical discs into predetermined shapes and old methods using methods such as injection molding and compression molding, depending on the purpose, such as video discs, audio discs, and file discs. The desired optical disc can be manufactured by molding the base and subjecting the base to predetermined processing and post-processing.
基盤の成形法としては通常は射出成形法が用いられる。Injection molding is usually used to mold the base.
すなわち、射出成形機を用い、ンリンク一温度１９０〜
３２０’Ｃ，好ましくは２２０〜２８０−Ｃ、金型温度
３０〜１２０℃、好ましくは５０〜９５℃に設定して成
形することができる。That is, using an injection molding machine, the temperature of the link is 190~
Molding can be carried out at a temperature of 320'C, preferably 220 to 280C, and a mold temperature of 30 to 120C, preferably 50 to 95C.
本発明の光学ディスクは紫外線吸収剤などの光安定剤、
酸化防止剤などの熱安定剤等各種安定剤 ７−
を含有することができる。また本発明の効果を損なわな
い範囲で他の重合体全混合状態で含有することもできる
。The optical disc of the present invention includes a light stabilizer such as an ultraviolet absorber,
Various stabilizers such as heat stabilizers such as antioxidants can be contained. Further, other polymers may be contained in a completely mixed state within a range that does not impair the effects of the present invention.
〈実施例〉 以下、実施例により本発明をさらに詳しく説明する。<Example> Hereinafter, the present invention will be explained in more detail with reference to Examples.
実施例中で用いられる熱変形温度、光透過率、複屈折、
屈折率は次の方法に従って測定したものである。Heat distortion temperature, light transmittance, birefringence, used in the examples
The refractive index was measured according to the following method.
熱変形温度：ＡＳＴＭ Ｄ−６４８−５６に従って測定
した。Heat distortion temperature: Measured according to ASTM D-648-56.
光透過率：ＪＩＳ Ｋ６７１４に従い、積分球式光線透
過率測定装置により、厚さ３０朋の試験片で測定した。Light transmittance: Measured using an integrating sphere type light transmittance measuring device in accordance with JIS K6714 using a 30 mm thick test piece.
複屈折：射出成形によって厚さ１２絹、直径１２０朋の
ディスクを成し、室温２０℃の条件下でそのディスクを
、偏光面を９０°ずらして重ねた２枚の偏光板の間には
さみ、偏光板を回転させて明暗縞が消失する角度を測定
した。Birefringence: A disk with a thickness of 12 mm and a diameter of 120 mm is formed by injection molding, and the disk is sandwiched between two polarizing plates stacked with the plane of polarization shifted by 90 degrees at a room temperature of 20°C. The angle at which the bright and dark stripes disappeared was measured by rotating the .
屈折率（ｎＤ）： Ａ Ｓ Ｔ Ｍ Ｄ ５４２ ５０
に従い、８ −
アソベの屈析訓によって測定した。Refractive index (nD): ASTM D 542 50
It was measured by 8-Asobe's refractometer according to the standard.
実施例１〜７
（ポリグルタルイミド系重合体の製造）下記のポリメタ
クリル酸メチルＭ−１、Ｍ−２を表１に示す各イミド化
剤（アンモニア、メチルアミン、ｔ−メチルアミン）と
ともに押出機中に仕込み、押出機に取りイ」けられた抽
気１」から脱気しながら、樹脂温度２８０℃で押出を行
ない、表１に示したポリグルタルイミド系重合体（Ｃ，
１〜Ｇ−８）を製造した。グルタルイミド単位含有量は
元素分析値から算出した。Examples 1 to 7 (Production of polyglutarimide polymer) The following polymethyl methacrylates M-1 and M-2 were extruded with each imidizing agent (ammonia, methylamine, t-methylamine) shown in Table 1. The polyglutarimide polymers (C, C,
1 to G-8) were produced. The glutarimide unit content was calculated from elemental analysis values.
ポリメタクリル酸メチル
Ｍ−１ニジメチルホルムアミドを用い、３０℃で測定し
た極限粘度（〔η〕）が０９５のポリメタクリル酸メチ
ル
Ｍ−２°〔η〕が０．６４のポリメタクリル酸メチル（
本頁以下空白）
表 １
（成形品による物性測定）
かくして製造したポリグルタルイミド系重合体（Ｇ−１
〜Ｇ−７）を射出成形して、各試験片ディスクを作成し
、熱変形温度、光透過率および複屈折を測定した。測定
結果を表２に示した。Polymethyl methacrylate M-1 Polymethyl methacrylate M-2 whose intrinsic viscosity ([η]) is 0.64 when measured at 30°C using dimethylformamide
This page is blank) Table 1 (Measurement of physical properties using molded products) Polyglutarimide polymer thus produced (G-1
~G-7) was injection molded to create each test piece disk, and the heat distortion temperature, light transmittance, and birefringence were measured. The measurement results are shown in Table 2.
射出成形におけるシリンダ一温度を表２にあわせて示し
た。金型温度はいずれも６０℃で行なつｔこ。The cylinder temperature during injection molding is also shown in Table 2. The mold temperature was 60°C in all cases.
比較例１〜５
（他の樹脂との比較）
ポリメタクリル酸メチル（Ｍ−１およびＭ−２）、ゞス
タイロン６６６’（塩ダウ（株）製ポリスチレン）、ル
ーキサン１２１ ’（エンジニアリングプラスチックス
（株）製ポリカーボネート）および実施例１で製造した
ポリグルタルイミド系重合体（Ｇ−８）について実施例
１と同し方法で各測定を行なった。Comparative Examples 1 to 5 (Comparison with other resins) Polymethyl methacrylate (M-1 and M-2), Stylon 666' (polystyrene manufactured by Shio Dow Co., Ltd.), Luxan 121' (Engineering Plastics Co., Ltd.) ) and the polyglutarimide polymer (G-8) produced in Example 1, measurements were carried out in the same manner as in Example 1.
（本頁以下空白）
実施例および比較例−の結果から次のことが明らかであ
る。すなわち本発明のポリグルタルイミド系重合体（Ｇ
−１〜Ｇ−７）からなるディスクは熱変形温度、透明性
がすくれ、複屈折も小さい。(This page is blank) The following is clear from the results of Examples and Comparative Examples. That is, the polyglutarimide polymer of the present invention (G
-1 to G-7) have low heat deformation temperature, low transparency, and low birefringence.
それに対しポリメタクリル酸メチル（Ｍ−Ｉ ５Ｍ−２
）は熱変形温度が低い。ポリスチレンからなるディスク
（スタイロン６６６）は熱変形温度、複屈折が劣る。ポ
リカーボネートからなるディスクは熱変形温度は高いが
、複屈折が著しく高い。On the other hand, polymethyl methacrylate (M-I 5M-2
) has a low heat distortion temperature. A disk made of polystyrene (Styron 666) has poor heat deformation temperature and birefringence. Disks made of polycarbonate have a high heat deformation temperature but extremely high birefringence.
まｔこグルタルイミド単位が９０重量％を越えるポリグ
ルタルイミド系重合体（Ｇ−８）からなるディスクは透
明性および複屈折が劣るため好ましくなし）。A disk made of a polyglutarimide polymer (G-8) containing more than 90% by weight of glutarimide units is not preferred because of its poor transparency and birefringence.
〈発明の効果〉
す、」二説明したように、本発明のポリグルタルイミド
系重合体からなる光学ディスク材料は熱変形温度に代表
される耐熱性、透明性が優れ同時に複屈折が小さく、こ
れらのバランスが従来の光学用プラスチックからなるデ
ィスクに比べ優れている。<Effects of the Invention> As explained above, the optical disc material made of the polyglutarimide polymer of the present invention has excellent heat resistance as typified by heat distortion temperature, excellent transparency, and at the same time has low birefringence. The balance is superior to that of conventional optical plastic discs.
特許出願人 東 し 株 式 会 社 １４−Patent applicant Higashi Shikikai Co., Ltd. 14-
Claims (1)
重量％および下記（１）式で表わされるアクリリック単
位９７〜１０重量％を有するポリグルタルイミド系重合
体からなる光学ディスク材料。 ３ （（１）式中、Ｒ１およびＲ２は水素原子またはメチル
基を、Ｒ３は水素原子、炭素数１〜２ｏの置換または非
置換のアルキル基またはアリール基を表わす。）４ −ＬＣＨ２−Ｃ− １・・ｅ・・（１） ２＼ ０Ｒ５ （（Ｉｔ１式中、Ｒ４は水素原子またはメチル基、Ｒ５
は水素原子、炭素数１〜１０の置換または非置換のアル
キル基またはアリール基を表わす。）[Claims] 3 to 90 glutarimide units represented by the following formula (1)
An optical disc material comprising a polyglutarimide polymer having 97 to 10% by weight of acrylic units represented by the following formula (1). 3 (In formula (1), R1 and R2 represent a hydrogen atom or a methyl group, and R3 represents a hydrogen atom, a substituted or unsubstituted alkyl group or aryl group having 1 to 2 carbon atoms.) 4 -LCH2-C- 1...e...(1) 2\0R5 ((In the It1 formula, R4 is a hydrogen atom or a methyl group, R5
represents a hydrogen atom, a substituted or unsubstituted alkyl group or aryl group having 1 to 10 carbon atoms. )
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59089227A JPS60233106A (en) | 1984-05-07 | 1984-05-07 | Optical disk material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59089227A JPS60233106A (en) | 1984-05-07 | 1984-05-07 | Optical disk material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60233106A true JPS60233106A (en) | 1985-11-19 |
| JPH0475243B2 JPH0475243B2 (en) | 1992-11-30 |
Family
ID=13964853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59089227A Granted JPS60233106A (en) | 1984-05-07 | 1984-05-07 | Optical disk material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60233106A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0431903A2 (en) * | 1989-12-08 | 1991-06-12 | The Dow Chemical Company | Intrinsically low birefringent molding polymers, process for preparation and molded objects therefrom |
| US5218068A (en) * | 1988-03-25 | 1993-06-08 | The Dow Chemical Company | Intrinsically low birefringent molding polymers and optical storage disks therefrom |
| EP0915105A1 (en) * | 1997-11-07 | 1999-05-12 | Rohm And Haas Company | Plastic substrates for electronic display applications |
| WO2005108438A1 (en) * | 2004-05-10 | 2005-11-17 | Kaneka Corporation | Imide resin, method for producing same, and molded body using same |
| WO2006043409A1 (en) * | 2004-10-22 | 2006-04-27 | Kaneka Corporation | Imide resin with high refractive index, thermoplastic resin composition for lens using same, and lens |
| JP2010254742A (en) * | 2009-04-21 | 2010-11-11 | Kaneka Corp | Optical film |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5263989A (en) * | 1975-11-19 | 1977-05-26 | Rohm & Haas | Process for producing imidized acrylic acid polymer |
| JPS5416599A (en) * | 1977-06-09 | 1979-02-07 | Gaf Corp | Preparation of linear cyclic polyimide |
| JPS585306A (en) * | 1981-06-25 | 1983-01-12 | イ−・アイ・デユボン・ド・ネモア−ス・アンド・コンパニ− | Manufacture of imidized acryl polymer |
| JPS5871928A (en) * | 1981-10-07 | 1983-04-28 | ロ−ム・アンド・ハ−ス・コンパニ− | Thermoplastic non-bridgeable anhydrous polymer and imide polymer and manufacture |
-
1984
- 1984-05-07 JP JP59089227A patent/JPS60233106A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5263989A (en) * | 1975-11-19 | 1977-05-26 | Rohm & Haas | Process for producing imidized acrylic acid polymer |
| JPS5416599A (en) * | 1977-06-09 | 1979-02-07 | Gaf Corp | Preparation of linear cyclic polyimide |
| JPS585306A (en) * | 1981-06-25 | 1983-01-12 | イ−・アイ・デユボン・ド・ネモア−ス・アンド・コンパニ− | Manufacture of imidized acryl polymer |
| JPS5871928A (en) * | 1981-10-07 | 1983-04-28 | ロ−ム・アンド・ハ−ス・コンパニ− | Thermoplastic non-bridgeable anhydrous polymer and imide polymer and manufacture |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5218068A (en) * | 1988-03-25 | 1993-06-08 | The Dow Chemical Company | Intrinsically low birefringent molding polymers and optical storage disks therefrom |
| EP0431903A2 (en) * | 1989-12-08 | 1991-06-12 | The Dow Chemical Company | Intrinsically low birefringent molding polymers, process for preparation and molded objects therefrom |
| EP0915105A1 (en) * | 1997-11-07 | 1999-05-12 | Rohm And Haas Company | Plastic substrates for electronic display applications |
| WO2005108438A1 (en) * | 2004-05-10 | 2005-11-17 | Kaneka Corporation | Imide resin, method for producing same, and molded body using same |
| WO2006043409A1 (en) * | 2004-10-22 | 2006-04-27 | Kaneka Corporation | Imide resin with high refractive index, thermoplastic resin composition for lens using same, and lens |
| JPWO2006043409A1 (en) * | 2004-10-22 | 2008-05-22 | 株式会社カネカ | Imide resin having high refractive index, and thermoplastic resin composition for lens and lens using the same |
| JP2010254742A (en) * | 2009-04-21 | 2010-11-11 | Kaneka Corp | Optical film |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0475243B2 (en) | 1992-11-30 |
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