Patent ID: 6187424
Filing Date: 2001-02-13
Classification: C08L,Y10T

Abstract:
A sheet material suitable for use as a floor, wall or ceiling covering material comprising(1) a polymer mixture having:(A) at least one homogeneously branched ethylene Polymer (A) having a molecular weight distribution, M.sub.w /M.sub.n, less than about 3 and a short chain branching distribution index SCBDI equal to or greater than about 50 percent obtainable by polymerization of ethylene with at least one C.sub.3 -C.sub.20 .alpha.-olefin in the presence of a single site or constrained geometry catalyst;(B) at least one ethylene Polymer (B) having a density at least 0.005 g/cm.sup.3 greater than the density of ethylene Polymer (A) and a TREF elution temperature at least 5.degree. C. greater than the TREF elution temperature of ethylene Polymer (A) and, optionally,(C) at least one ethylene Polymer (C) having a density at least 0.005 g/cm.sup.3 greater than the density of ethylene Polymer (B) and a TREF elution temperature at least 5.degree. C. greater than the TREF elution temperature of ethylene Polymer (B), and(2) optionally a filler at least partially dispersed with a compatibilizer in the polymer mixture,and when less than 10 wt % filler is dispersed in the polymer mixture, then the melt index of Polymer (A) is less than or equal to about 1.5 g/10 min., the melt index ratio of Polymer (B) to Polymer (A) is less than or equal to about 5.0, and/or Polymer (B) is a homogeneously branched ethylene polymer.