An ethylene/α-olefin copolymer comprising a component produced by a non-single-site polymerization catalyst and a component produced by a single-site polymerization catalyst, its preparation and use are described. The copolymer has an α-olefin content of 5 to 20 percent by weight aud shows at least two CRYSTAF peak temperatures differing by at least 15° C. and/or at least two DSC melting peak temperatures differing by at least 15° C.
本文描述了一种
乙烯/α-烯烃共聚物,它包括由非单位点聚合催化剂生产的一种组分和由单位点聚合催化剂生产的一种组分及其制备和使用方法。该共聚物的 α-烯烃含量为 5%至 20%(按重量计),至少有两个 CRYSTAF 峰值温度相差至少 15 摄氏度,和/或至少有两个
DSC 熔化峰值温度相差至少 15 摄氏度。