Patent ID: 6455170
Filing Date: 2002-09-24
Classification: B32B,C08L,C09J,Y10T

Abstract:
A modified polypropylene composition comprising:(A) modified polypropylene having been partially or wholly graft modified with an unsaturated carboxylic acid or its derivative, in an amount of 40 to 92% by weight, (B) an amorphous or low-crystalline ethylene/&agr;-olefin copolymer having a melt flow rate (MFR, ASTM D 1238, 230Â° C., load of 2.16 kg) of 0.01 to 10 g/10 min and a density (ASTM D 1505) of not more than 0.900 g/cm3, in an amount of 5 to 30% by weight, and (C) a styrene elastomer in an amount of 12 to 30% by weight, wherein the percent by weight for (A), (B) and (C) is based on 100% by weight of the total of (A), (B) and (C), andwherein the modified polypropylene (A) is a graft modification product (A1) of a propylene homopolymer and/or a graft modification product (A2) of a propylene/&agr; olefin random copolymer containing constituent units derived from an &agr; olefin other than propylene in amounts of not more than 10% by mol based on 100% by mol of the total of constituent units derived from propylene and constituent units derived from an &agr;-olefin other than propylene.