Patent ID: 6703141
Filing Date: 2004-03-09
Classification: B32B,C08L,Y10T

Abstract:
A matte surface film comprising:(a) a base layer comprising a polyolefin; and (b) a void free matte surface layer comprising a blend of at least three polymers comprising: a non-hydrocarbon polymer selected from the group consisting of polyvinyl alcohol, ethylene-vinyl alcohol copolymers, ethylene-vinyl acetate-vinyl alcohol copolymers, polyesters, polycarbonate, and polyvinyl chloride; an incompatible polyolefin; and a maleic anhydride modified polyolefin, wherein said non-hydrocarbon polymer includes monomeric units with polar functional groups and has a melting point no more than 10Â° C. greater than the melting point of the incompatible polyolefin; and wherein said blend comprises at least 12 wt % of said non-hydrocarbon polymer.