abstract |
A propylene- alpha -olefin random copolymer composition for use in a laminated and oriented film. The composition includes: (A) from 75 to 95% by weight of a crystalline propylene random copolymer obtained by gas-phase polymerization of propylene and an alpha -olefin wherein the amount of components of the copolymer which are soluble in xylene at 20 DEG C. is less than 15% by weight, the propylene content is from 73 to 97% by weight, the alpha -olefin content is from 3 to 27% by weight, and (B) from 5 to 25% by weight of a propylene random copolymer of propylene and alpha -olefin, wherein the propylene content is from 50 to 60% by weight, and the alpha -olefin content is from 35 to 65 % by weight, wherein the amounts of components in the propylene- alpha -olefin random copolymer composition which are soluble in xylene at 20 DEG C. is less than 30% by weight. |