Copolymers of ethylene with C
3
-C
12
α-olefin have a polydispersity Mw/Mn of ≦10, a density of from 0.85 to 0.95 g/cm
3
, a proportion of from 1 to 40% by weight of comonomer and a molar mass Mn above 150,000 g/mol and a comonomer composition distribution breadth index above 70%. A process for their preparation is described, as are their use and fibers, moldings, films and polymer mixtures comprising these copolymers.
乙烯与C3-C12α-烯烃的共聚物具有聚分散度Mw/Mn≤10,密度为0.85至0.95 g/cm3,共聚物的重量比例为1至40%,摩尔质量Mn大于150,000 g/mol,且共聚物组成分布宽度指数大于70%。描述了它们的制备过程,以及它们的用途和由这些共聚物组成的纤维,成型品,薄膜和聚合物混合物。