BUTENE-1 COPOLYMERS AND RESIN COMPOSITIONS CONTAINING THE SAME

摘要

Copolymers of butene-1 and propylene, having specific physical properties and substantially a syndiotactic structure; and easily heat-sealable polypropylene resin compositions comprising 5-50 parts by weight of one of the copolymers and 95-50 parts by weight of a stereoregular crystalline propyleneethylene copolymer or propylene-ethylene-C4-12-.alpha.-olefin copolymer having specific compositions and melt flow index.