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    • 1. 发明授权
    • Hydrogenated norbornene ring-opening polymerization product, a process
for production thereof and uses thereof
    • 氢化降冰片烯开环聚合产物,其制备方法和用途
    • US5681900A
    • 1997-10-28
    • US537866
    • 1996-01-22
    • Toshihide MurakamiTeiji KoharaTadao Natsuume
    • Toshihide MurakamiTeiji KoharaTadao Natsuume
    • C08G61/06C08G61/08G02B1/04H01B3/30C08F32/08
    • C08G61/08
    • A resin obtained by subjecting a norbornene type monomer having an aromatic ring structure (e.g. 5-phenyl-2-norbornene) to ring-opening polymerization and hydrogenating 95% or more of the unsaturated bonds in the backbone structure of the resulting polymer by the use of a catalyst composed of a combination of a transition metal compound and an alkyl metal compound, while leaving 80% or more of the aromatic ring structures, which resin has not only a high refractive index but also characteristics of a hydrogenated norbornene ring-opening polymerization product, i.e., excellent heat resistance, transparency, low birefringent properties, weather resistance, light resistance, low water absorption properties, moisture resistance, small dielectric constant, small dielectric loss, chemical resistance, etc., said resin being usable in optical materials, medical tools and materials, tools and materials for treating electronic parts, etc.
    • PCT No.PCT / JP94 / 01244 Sec。 371日期1996年1月22日 102(e)日期1996年1月22日PCT提交1994年7月28日PCT公布。 出版物WO95 / 04096 日期1995年2月9日通过使具有芳环结构的降冰片烯型单体(例如5-苯基-2-降冰片烯)进行开环聚合,并在其主链结构中氢化95%以上的不饱和键而得到的树脂 通过使用由过渡金属化合物和烷基金属化合物的组合组成的催化剂,同时留下80%或更多的芳族环结构,该树脂不仅具有高折射率,而且具有氢化特性 降冰片烯开环聚合产物,即优异的耐热性,透明性,低双折射性,耐候性,耐光性,低吸水性,耐湿性,介电常数小,介电损耗小,耐化学腐蚀等特性。 可用于光学材料,医疗工具和材料,用于处理电子部件的工具和材料等。
    • 2. 发明授权
    • Ring-opening hydrogenated copolymer and process for producing the same
    • 开环氢化共聚物及其制备方法
    • US5580934A
    • 1996-12-03
    • US476489
    • 1990-06-07
    • Yoshikatsu NishiMasayoshi OshimaTeiji KoharaTadao Natsuume
    • Yoshikatsu NishiMasayoshi OshimaTeiji KoharaTadao Natsuume
    • C08G61/08C08F232/08C08F8/04
    • C08G61/08
    • There are disclosed a polycyclic norbornene or its derivative hydrogenated copolymer which containsa repeating unit represented by the following formula [I] or the alkyl-substituted derivative thereof (A),a repeating unit represented by the following formula [II] or the alkyl-substituted derivative thereof (B) and, as desired,5-85% by mole of at least one repeating unit (C) selected from a repeating unit represented by the following formula [III], the alkyl-substituted derivative thereof, a repeating unit represented by the following formula [IV], the alkyl-substituted derivative and the alkylidene-substituted derivative thereof, and a process for producing the polycyclic norbornene or its derivative ring-opening hydrogenated copolymer ##STR1## wherein ------ represents either a single bond or a double bond.
    • PCT No.PCT / JP88 / 01331 Sec。 371日期1990年6月7日 102(e)日期1990年6月7日PCT提交1988年12月26日PCT公布。 出版物WO89 / 06254 日期:1989年7月13日公开了含有下述式[I]表示的重复单元或其烷基取代衍生物(A)的多环降冰片烯或其衍生物氢化共聚物,由下式[II ]或其烷基取代的衍生物(B),根据需要,5-85摩尔%至少一种选自下式[III]表示的重复单元的重复单元(C),烷基取代的衍生物 由下式[Ⅳ]表示的重复单元,烷基取代的衍生物和亚烷基取代的衍生物,以及制备多环降冰片烯或其衍生物开环氢化共聚物的方法, [II] [III] [IV]其中+ E,uns --- + EE表示单键或双键。