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    • 2. 发明授权
    • Resin composition
    • 树脂组成
    • US5883192A
    • 1999-03-16
    • US663175
    • 1996-06-10
    • Itaru NatoriKimio ImaizumiKiyoo Kato
    • Itaru NatoriKimio ImaizumiKiyoo Kato
    • C08F8/00C08F8/18C08F8/30C08F8/34C08F8/40C08F8/42C08F8/46C08F210/00C08F232/00C08F297/02C08L45/00C08L53/00
    • C08L45/00C08F210/00C08F232/00C08F297/02C08F8/04
    • Disclosed is a resin composition comprising (.alpha.) at least one polymer selected from the group consisting of a non-modified cyclic monomer unit-containing polymer and a modified cyclic monomer unit-containing polymer having a number average molecular weight of from 10,000 to 5,000,000, wherein the cyclic monomer unit is derived from a cyclic conjugated diene, and (.beta.) at least one polymer other than the polymer (.alpha.), and wherein the polymer (.alpha.) is present in an amount of at least 1% by weight, based on the total weight of the polymers (.alpha.) and (.beta.). The molecular structure of the polymer (.alpha.) which is contained in the novel resin composition of the present invention and which is selected from a non-modified cyclic monomer unit-containing polymer and a modified cyclic monomer unit-containing polymer, wherein the cyclic monomer unit is derived from a cyclic conjugated diene, can be controlled with large freedom. Therefore by combining the polymer (.alpha.) with a polymer (.beta.) other than the polymer (.alpha.), a resin composition which is excellent in various properties, such as theremal stability with respect to rigidity, and impact resistance can be provided with large freedom with respect to the choice of its properties.
    • PCT No.PCT / JP94 / 01970 Sec。 371日期1996年6月10日 102(e)日期1996年6月10日PCT 1994年11月21日PCT PCT。 公开号WO95 / 21217 日期:1995年8月10日公开是一种树脂组合物,其包含(α)至少一种选自下组的聚合物,所述聚合物选自:未改性的含环单体单元的聚合物和数均分子量为 10,000至5,000,000,其中所述环状单体单元衍生自环状共轭二烯,和(β)除所述聚合物(α)以外的至少一种聚合物,并且其中所述聚合物(α)的存在量为至少1 基于聚合物(α)和(β)的总重量计。 本发明的新型树脂组合物中含有的聚合物(α)的分子结构,其选自非改性环状单体单元的聚合物和含改性环状单体单元的聚合物,其中,环状单体 单体衍生自环状共轭二烯,可以自由控制。 因此,通过将聚合物(α)与聚合物(α)以外的聚合物(β)组合,可以大的自由度提供各种性能优异的树脂组合物,例如相对于刚性的稳定性和耐冲击性 关于其属性的选择。
    • 3. 发明授权
    • Polymer containing a modified cyclic monomer unit
    • 含有改性环状单体单元的聚合物
    • US5830965A
    • 1998-11-03
    • US652455
    • 1996-06-05
    • Kimio ImaizumiItaru NatoriHideyuki YamagishiKiyoo Kato
    • Kimio ImaizumiItaru NatoriHideyuki YamagishiKiyoo Kato
    • C08F8/00C08F8/18C08F8/30C08F8/34C08F8/40C08F8/42C08F8/46C08F210/00C08F232/00C08F297/02C08L45/00C08F32/02C08F32/04
    • C08L45/00C08F210/00C08F232/00C08F297/02C08F8/04
    • Disclosed is a polymer containing a modified cyclic monomer unit, comprising a polymer chain represented by the following formula (I): ##STR1## wherein A to F are monomer units constituting a main chain of the polymer chain, in which monomer units A to F are arranged in any order, and l to q are, respectively, weight percentages of monomer units A to F, based on the total weight of monomer units A to F; A is selected from cyclic olefin monomer units, B is selected from cyclic conjugated diene monomer units, and C to F are monomer units copolymerizable with monomer units A and B, wherein each of S to X, which are modifying groups, is a functional group or an organic compound residue containing the functional group, with the functional group containing at least one member selected from oxygen, nitrogen, sulfur, silicon, phosphorus and halogen; and wherein s to x are, respectively, weight percentages of modifying groups S to X, based on the weight of the polymer, and wherein the polymer has a number average molecular weight of from 10,000 to 5,000,000. The modified polymer of the present invention has excellent thermal properties, and is also advantageous in that it can be provided in the form of a modified copolymer of a cyclic olefin monomer and/or a cyclic conjugated diene monomer with a comonomer copolymerizable with the cyclic monomer, wherein the content of comonomer and the configuration of the copolymer can be appropriately selected in accordance with desired thermal and mechanical properties.
    • PCT No.PCT / JP94 / 01969 Sec。 371日期:1996年6月5日 102(e)日期1996年6月5日PCT 1994年11月21日PCT公布。 WO95 / 21202 PCT公开号 日期:1995年8月10日公开是含有改性环状单体单元的聚合物,其包含由下式(I)表示的聚合物链:其中A至F为构成聚合物主链的单体单元 链,其中单体单元A至F以任何顺序排列,并且1至q分别为基于单体单元A至F的总重量的单体单元A至F的重量百分比; A选自环状烯烃单体单元,B选自环状共轭二烯单体单元,C〜F为可与单体单元A和B共聚的单体单元,其中作为修饰基团的S至X各自为官能团 或含有该官能团的有机化合物残基,该官能团含有选自氧,氮,硫,硅,磷和卤素中的至少一种; 并且其中s至x分别为基于聚合物重量的改性基团S至X的重量百分数,并且其中聚合物的数均分子量为10,000至5,000,000。 本发明的改性聚合物具有优异的热性能,并且还可以以环状烯烃单体和/或环状共轭二烯单体与可与环状单体共聚的共聚单体的改性共聚物的形式提供 ,其中共聚单体的含量和共聚物的构型可以根据期望的热和机械性质适当选择。
    • 5. 发明授权
    • Methacrylic copolymer having low moisture absorption properties
    • 具有低吸湿性能的甲基丙烯酸共聚物
    • US5043405A
    • 1991-08-27
    • US545665
    • 1990-07-02
    • Toshinori KosekiKimio Imaizumi
    • Toshinori KosekiKimio Imaizumi
    • C08F220/14G11B7/253
    • C08F220/14G11B7/253
    • The methacrylic copolymer of the present invention is a novel copolymer having low moisture absorption properties which comprises specific proportions of methyl methacrylate units and tert-butylcyclohexyl methacrylate units, optionally with specific ethylenically unsaturated compound units copolymerizable with the above-mentioned monomer units. The copolymer of the present invention is excellent not only in colorlessness, transparency, moldability, low double refraction and heat stability but also in low moisture absorption properties and heat resistance and, therefore, is suitable for use as a material for shaped articles, such as an optical element substrate and a light transmissible extruded plate, and can particularly advantageously be used for applications, such as an optical disc substrate.
    • 本发明的甲基丙烯酸共聚物是具有低吸湿性的新型共聚物,其包含特定比例的甲基丙烯酸甲酯单元和甲基丙烯酸叔丁基环己酯单元,任选具有可与上述单体单元共聚的特定烯键式不饱和化合物单元。 本发明的共聚物不仅在无色性,透明性,成型性,低折射率和热稳定性方面都是优异的,而且在低吸湿性和耐热性方面也是优异的,因此适合用作成型制品的材料,例如 光学元件基板和可透光的挤压板,并且可以特别有利地用于诸如光盘基板的应用。