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    • 3. 发明授权
    • Ethylene-&agr;-olefin-nonconjugated polyene random copolymer
    • 乙烯-α-烯烃 - 非共轭多烯无规共聚物
    • US06300447B1
    • 2001-10-09
    • US09315233
    • 1999-05-20
    • Hirofumi JohojiToshiyuki KuwabaraAtsuko Ogawa
    • Hirofumi JohojiToshiyuki KuwabaraAtsuko Ogawa
    • C08F21018
    • C08F210/18C08F4/65908C08F4/65912Y10S526/916C08F4/6592C08F210/06C08F236/20C08F2500/25C08F2500/17
    • An ethylene-&agr;-olefin-nonconjugated polyene random copolymer obtained by polymerizing the following components (a), (b) and (c) in the presence of a catalyst comprising a transition metal complex having at least one cyclopentadienyl skeleton and satisfying the conditions (1), (2), (3) and (4): (a) ethylene, (b) &agr;-olefin having 3 to 20 carbon atoms, and (c) one or more nonconjugated polyene at least containing a nonconjugated polyene in which at least one or more hydrogen atoms are respectively bound to all of carbon atoms having a double bond; (1) the molar ratio of a unit derived from ethylene to a unit derived from &agr;-olefin in the copolymer is 95/5 to 20/80, (2) the iodine value is 0 to 50 (g/100 g polymer), (3) the intrinsic viscosity [&eegr;] measured in xylene at 70° C. is 0.5 to 10 dl/g, and (4) the Q value (weight average molecular weight/number average molecular weight) measured by gel permeation chromatography (GPC) is 3.0 or more.
    • 通过在包含具有至少一个环戊二烯基骨架的过渡金属配合物的催化剂的存在下聚合以下组分(a),(b)和(c))获得的乙烯-α-烯烃 - 非共轭多烯无规共聚物, 1),(2),(3)和(4):( a)乙烯,(b)具有3至20个碳原子的α-烯烃,和(c)至少含有非共轭多烯的一种或多种非共轭多烯, 至少一个或多个氢原子分别与具有双键的所有碳原子键合;(1)共聚物中衍生自乙烯的单元与衍生自α-烯烃的单元的摩尔比为95/5至20 / 80,(2)碘值为0〜50(g / 100g聚合物),(3)在70℃下在二甲苯中测定的特性粘度η为0.5〜10dl / g,(4) 通过凝胶渗透色谱法(GPC)测定的Q值(重均分子量/数均分子量)为3.0以上。