Patent ID: 7833611
Filing Date: 2010-11-16
Classification: B29C,B32B,C08F,C08L,Y10T

Abstract:
1. A composition for a surface covering or portion thereof comprising: a) at least one first polymer that is an ethylene propylene copolymer having a melt flow rate of from 0.5 to 15 gram/10 minute and having a melting point of from 140° C. to 160° C., a flexural modulus from 50 MPa to 400 MPa and a density of from 0.87 to 0.90 g/cm b) at least one second polymer different from the first polymer, c) at least one polypropylene having at least one polar group selected from an unsaturated carboxylic acid group, maleic anhydride group, acrylic acid group, ethylene methacrylic acid group, or methyl acrylate group, wherein said polar group is present in an amount of from 0.1 to 10 wt % based on the weight of said polypropylene, and said polypropylene has an isotactic index of from 85% to 95% and having a melt flow rate of from 100 to 450 gram/10 minute, d) at least one tackifier comprising at least one hydrocarbon, wherein the hydrocarbon comprises an aliphatic hydrocarbon, a cycloaliphatic hydrocarbon, an aromatic modified aliphatic hydrocarbon, an aromatic and aliphatic hydrocarbon modified with at least one fatty acid ester or any combination thereof, e) at least one dispersion agent comprising at least one ultra high melt flow polypropylene, the ultra high melt flow polypropylene comprising a melt flow rate of from 1000 to 2,200 gram/10 minute as measured by ASTM 1238 at 230° C. and 2.16 Kg and wherein said ultra high melt flow polypropylene is isotactic with an isotactic index of greater than 80%, and f) at least one filler.