ETHYLENE COPOLYMER AND PROCESS FOR PRODUCING THE SAME, RESIN COMPOSITION CONTAINING THE COPOLYMER, AND USES OF THESE
    7.
    发明申请
    ETHYLENE COPOLYMER AND PROCESS FOR PRODUCING THE SAME, RESIN COMPOSITION CONTAINING THE COPOLYMER, AND USES OF THESE 审中-公开
    乙烯共聚物及其制备方法,含有共聚物的树脂组合物及其用途

    公开(公告)号:WO00024822A1

    公开(公告)日:2000-05-04

    申请号:PCT/JP1999/005734

    申请日:1999-10-18

    摘要: An ethylene copolymer excellent in mechanical properties and moldability, which comprises 40 to 99 mol% ethylene units and 1 to 60 mol% C3-20 alpha -olefin units and in which the ratio (Mz/Mw) of the Z-average molecular weight (Mz) to the weight-average molecular weight (Mw) both determined by GPC is 10 to 30, that ratio (Mz/Mw) and the ratio (Mw/Mn) of the weight-average molecular weight (Mw) to the number-average molecular weight (Mn) both determined by GPC satisfy the relationship (Mz/Mw)>(Mw/Mn), the intrinsic viscosity is 0.5 to 4 dl/g, the ratio of the melt viscosity ( eta 0.01) as measured at 190 DEG C and a shear rate of 0.01 rad/sec to that ( eta 8) as measured at 190 DEG C and a shear rate of 8 rad/sec satisfy the relationship ( eta 0.01/ eta 8) 0.843x( eta )+1.0, and the absolute value of the activation energy (Ea) with respect to melt viscoelasticity shift factor is 4x10 J/mol.K or lower.

    摘要翻译: 一种机械性能和成型性优异的乙烯共聚物,其包含40〜99摩尔%的乙烯单元和1〜60摩尔%的C 3〜20α-烯烃单元,其中Z均分子量(Mz / Mw) Mz)与通过GPC测定的重均分子量(Mw)之比为10〜30,重均分子量(Mw)与数均分子量(Mw)的比(Mz / Mw) 通过GPC测定的平均分子量(Mn)满足关系式(Mz / Mw)>(Mw / Mn),特性粘度为0.5〜4dl / g,熔融粘度(ηa* 0.01) 在190℃下测量的剪切速率为0.01rad / sec,在190℃下测得的剪切速率为8rad / sec,其剪切速率满足(eta * 0.01 / eta < * 8)0.843×(eta)+1.0,相对于熔体粘弹性变换因子的活化能(Ea)的绝对值为4×10 4 J / mol·K以下。