Patent ID: 8779064
Filing Date: 2014-07-15
Classification: C08J,C08L,Y10T

Abstract:
1. A polypropylene resin composition comprising: (a) 50-94 weight % propylene-alpha olefin random copolymer comprising ethylene or one or more C4-C10 alpha olefins of 0.5-10 mol % respective Go the random copolymer; (b) 5-49 weight % propylene-alpha olefin elastic copolymer comprising ethylene or one or more C4-C10 alpha olefins of 20-70 weights respective to the elastic copolymer; and (c) 1-45 weight % ethylene-alpha olefin copolymer comprising one or more C3-C10 alpha olefins of 1-50 weight % respective to the olefin copolymer, wherein a ratio of intrinsic viscosity of solubles of the elastic copolymer (b) in xylene to that of the random copolymer (a) is 0.3-0.6, wherein a ratio of melt index or the ethylene-alpha olefin copolymer (c) to that of the propylene-alpha olefin random copolymer (a) is 0.5-2, wherein a ratio of a melt index of the resin composition to that of the propylene-alpha olefin random copolymer (a) is 0.9-1.2, and wherein the composition has a haze of 19-31%, a flexural modulus of 9300-10000 Kg/cm