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    • 22. 发明授权
    • Heat-resistant rubber composition
    • 耐热橡胶组合物
    • US5733983A
    • 1998-03-31
    • US750821
    • 1996-12-10
    • Takashi HakutaTetsuo TojoMasaaki KawasakiMikio Hosoya
    • Takashi HakutaTetsuo TojoMasaaki KawasakiMikio Hosoya
    • C08K5/00C08K5/14C08L23/08C08F8/00
    • C08K5/14C08K5/0025C08L23/0815C08L2312/00
    • A heat-resistant rubber composition of the invention is a vulcanizable composition comprising a specific ethylene-.alpha.-olefin-nonconjugated polyene copolymer rubber (A) and an organic peroxide (B). This heat-resistant composition has high crosslinking efficiency given by the organic peroxide and high modulus, and can provide a vulcanized rubber molded product of excellent resistance to environmental deterioration such as thermal aging resistance. The other heat-resistant rubber composition of the invention is a vulcanizable composition comprising 100 parts by weight of a specific ethylene-.alpha.-olefin-nonconjugated polyene copolymer rubber (A) composed of ethylene, an .alpha.-olefin or 3 to 20 carbon atoms and a nonconjugated polyene which is a vinyl end group-containing norbornene compound, 0.2 to 5 parts by weight of an amine type anti-aging agent (C) and/or a hindered phenol type anti-aging agent (D), 1 to 10 parts by weight of a sulfur type anti-aging agent (E) and an organic peroxide (B). This heat-resistant rubber composition can provide a vulcanized rubber molded product showing not only excellent mechanical properties and electrical properties and but also prominently high thermal aging resistance.
    • PCT No.PCT / JP96 / 00991 Sec。 371日期1996年12月10日第 102(e)日期1996年12月10日PCT 1996年4月11日PCT PCT。 出版物WO96 / 32442 日期1996年10月17日本发明的耐热橡胶组合物是包含特定乙烯-α-烯烃 - 非共轭多烯共聚物橡胶(A)和有机过氧化物(B)的可硫化组合物。 该耐热组合物具有由有机过氧化物和高模量赋予的高交联效率,并且可以提供耐环境劣化如耐热老化性优异的耐硫化橡胶模制产品。 本发明的另一种耐热橡胶组合物是一种可硫化组合物,其包含100重量份由乙烯,α-烯烃或3至20个碳原子组成的特定乙烯-α-烯烃 - 非共轭多烯共聚物橡胶(A)和 作为含有乙烯基端基的降冰片烯化合物的非共轭多烯,0.2〜5重量份的胺型防老化剂(C)和/或受阻酚型抗老化剂(D),1〜10重量份 的硫型防老化剂(E)和有机过氧化物(B)。 该耐热橡胶组合物可以提供硫化橡胶模制产品,其不仅具有优异的机械性能和电性能,而且显示出高显着高的耐热老化性。
    • 26. 发明授权
    • Unconjugated cyclopolyene copolymer, rubber composition, and use
    • 未结合的环戊烯共聚物,橡胶组合物及用途
    • US06787623B1
    • 2004-09-07
    • US09787890
    • 2001-03-26
    • Hidetatsu MurakamiKeiji OkadaMasaaki KawasakiKotaro Ichino
    • Hidetatsu MurakamiKeiji OkadaMasaaki KawasakiKotaro Ichino
    • C08F23620
    • C08L21/00B60C1/0016C08F210/02C08F210/18C08L23/08C08L23/0823Y10T152/10495C08L2666/06C08L2666/04C08F236/20C08F2500/25C08F2500/17C08F210/06
    • A tire provided with a tire tread made from a rubber composition comprising (A) a random copolymer based on non-conjugated cyclic polyene comprising structural units originated from one or more &agr;-olefins (A1) and originated from one or more non-conjugated cyclic polyene (A2), the said random copolymer having a content of the structural unit(s) originated from one or more &agr;-olefins (A1) in the range of 93 to 70 mole %; a content of the structural unit originated from one or more non-conjugated cyclic polyene (A2) in the range of 7 to 30 mole %; an intrinsic viscosity [&eegr;], determined in decalin at 135° C., in the range of 0.01 to 20 dl/g; a glass transition temperature (Tg) of not higher than 40° C.; and an iodine value in the range of 50 to 150, and (B) a rubber based on diene, in a weight proportion of {the random copolymer based on non-conjugated cyclic polyene (A)} versus {the rubber based on diene (B)} in the range from 60/40 to 0.1/99.9 exhibits a superior braking performance and, compatible therewith, a superior driving fuel cost aspect.
    • 本发明提供一种轮胎胎面,其由橡胶组合物制成,该轮胎胎面由(A)基于非共轭环状多烯的无规共聚物构成,所述非共轭环多烯包含源自一种或多种α-烯烃(A1)的结构单元,并且源于一种或多种非共轭环 多烯(A2),所述无规共聚物具有来源于一种或多种α-烯烃(A1)的结构单元的含量在93-70摩尔%范围内; 来自一种或多种7-30摩尔%的非共轭环状多烯(A2)的结构单元的含量; 在135℃的萘烷中测定的特性粘度η在0.01至20dl / g的范围内; 玻璃化转变温度(Tg)不高于40℃; 碘值在50〜150范围内,(B)基于二烯的橡胶,以{非共轭环状多烯(A)}为基准的无规共聚物)与{基于二烯的橡胶 B)}在60/40至0.1 / 99.9的范围内表现出优异的制动性能,并且与其兼容,具有优异的驱动燃料成本方面。