Patent ID: 6682789
Filing Date: 2004-01-27
Classification: B29C,B29K,C08F,C08L,E04F,E06B,Y10T

Abstract:
A mechanically stable and thermally stable polymer/fiber composite comprising:(a) greater than about 25 wt % of a polyolefin polymer composition having a melting point of about 145Â° C. to 158Â° C., a molecular weight distribution (Mw/Mn) of about and a melt index of less than 2 gm/10 min; (b) greater than about 50 up to 75 wt % of a wood fiber, the fiber having a moisture content of less than 5000 parts of water per million parts of the fiber, a particle size of about 100 to about 2000 &mgr;m and an aspect ratio of about 1:2 to about 1:5; and (c) about 0.01 to 5 wt % of a polymer/fiber compatibilizer; wherein the tensile modulus of the composite is greater than about 5Â·105 psi, the heat distortion temperature of the composite is greater than about 75Â° C. at 264 psi (ASTM D 648).