Patent ID: 6319976
Filing Date: 2001-11-20
Classification: C08F,C08L

Abstract:
A composition comprising by weight, based on the total weight of the composition:(a) about 1% to about 98% of a graft copolymer comprising a backbone of a propylene polymer material having graft polymerized thereto monomers selected from the group consisting of (i) at least one vinyl aromatic compound and an unsaturated carboxylic acid and (ii) at least one vinyl aromatic compound and an anhydride of an unsaturated carboxylic acid, wherein the polymerized monomers are present in an amount from about 10 to about 95 parts per hundred parts of the propylene polymer material;(b) about 2% to about 99% of at least one polyamide resin;(c) about 5% to about 90% of a broad molecular weight distribution propylene polymer material having a weight average molecular weight to number average molecular weight ratio of about 5 to about 60;(d) optionally, about 2% to about 30% of at least one rubber component selected from the group consisting of (i) an olefin copolymer rubber, (ii) a monoalkenyl aromatic hydrocarbon-conjugated diene block copolymer, and (iii) a core-shell rubber;(e) optionally, an additive to improve the scratch and mar resistance of the composition selected from the group consisting of (a) about 0.5% to about 10% of at least one low molecular weight ethylene polymer of a functionalized derivative thereof, having a number average molecular weight of about 300 to about 5000, and (b) a combination of about 0.5% to about 10% of at least one of the low molecular weight ethylene polymers in (a) and about 0.5% to about 10% of inorganic microspheres.