Patent ID: 6767961
Filing Date: 2004-07-27
Classification: C08L,Y10T

Abstract:
A composition comprising a blend of a poly(vinyl alcohol) and a graft copolymer of poly(ethylene oxide), the blend having improved melt processability and mechanical properties without the addition of plasticizers; andwherein the graft copolymer of poly(ethylene oxide) comprises a poly(ethylene oxide) backbone main chain, and one or more chains derived from one or more monomers that differ chemically or configurationally from the poly(ethylene oxide) backbone, and wherein the one or more chains are bonded at one or more points along the poly(ethylene oxide) backbone, and wherein the graft copolymer of poly(ethylene oxide) is prepared from poly(ethylene oxide) resins having a weight average molecular weight from about 100,000 g/mol to about 8,000,000 g/mol.