Compositions a base de copolymeres statistiques du propylene procede pour leur fabication et feuilles multicouches thermoscellables les contenant

摘要

Compositions (P) based on propylene copolymers comprise 68-80wt.% statistical polypropylene copolymer (A) containing 12-20wt.% units derived from 1-butene and 0-2wt.% units derived from ethene; and 32-20wt.% statistical polypropylene copolymer (B) containing 0-15wt.% units derived from 1-butene and 1-8wt.% units derived from ethene; (A) and (B) being different. Also claimed are method of preparation of compositions and sheets made from them.