Patent ID: 6852799
Filing Date: 2005-02-08
Classification: C08G,C08L

Abstract:
1. Method of making a copolymer AB as a compatibilizing agent between a polar thermoplastic polymer C and a polyolefine D comprising the steps of: a) melting a copolymer A comprising a larger amount of methylmethacrylate units and a smaller amount of functional vinyl or (meth)arcylate units wherein functional moiety is selected in the group consisting of a hydroxyl, a carboxylic, a glycidyl and an amine functional group; together with maleic anhydride grafted polypropylene B allowing condensation reaction to occur between the functions under “A” and the anhydride under “B”, b) the condensation copolymer obtained under a) is further melt together with the two polymers C and D to be homogenized, or melt processed as an interlayer between the two molten polymers.