An olefin (co-)polymer composition including 0.01 to 5.0 weight parts of high molecular weight polyethylene which is an ethylene homopolymer or an ethylene-olefin copolymer containing 50 weight % or more of an ethylene polymerization unit; and 100 weight parts of an olefin (co-)polymer other than the high molecular weight polyethylene, wherein said high molecular weight polyethylene has an intrinsic viscosity [&eegr;
E
] of 15 to 100 dl/g measured in tetralin at 135° C. or more, and said high molecular weight polyethylene exists as dispersed fine particles having a numerical average particle size of 1 to 5000 nm.
一种
烯烃(共)
聚合物组合物,包括 0.01 至 5.0 重量份的高分子量聚
乙烯,它是一种
乙烯均聚物或
乙烯-
烯烃共聚物,含有 50 重量份或更多的
乙烯聚合单元;以及 100 重量份的
烯烃(共)
聚合物,而不是高分子量聚
乙烯,其中所述高分子量聚
乙烯具有固有粘度[&eegr;
E
]为 15 至 100 dl/g,在 135° C 或更高温度的四
萘中测量,所述高分子量聚
乙烯以分散的细颗粒形式存在,其数值平均粒径为 1 至 5000 nm。