Polypropylene composition and laminated and oriented film therefrom

摘要

A polypropylene composition for a laminated and oriented film comprising (A) 73 to 97 % by weight of a crystalline propylene random copolymer having a propylene content of 60 to 97 % by weight, an ethylene content of 0 to 6 % by weight and an alpha -olefin content of 3 to 40 % by weight, (B) 2.5 to 17 % by weight of a propylene- alpha -olefin random copolymer having a propylene content of 35 to 75 % by weight and an alpha -olefin content of 25 to 65 % by weight, and (C) 0.5 to 10 % by weight of a crystalline propylene polymer. A polypropylene composition for a laminated and oriented film being film-formed for a long time without hurting a transparency and a low temperature heat-sealing property and having an excellent solvent resistance and an excellent hot-tack property, and a laminated and oriented film having this composition on a surface layer are provided.