Process for the preparation of cross-linked maleic anhydride copolymers

摘要

A process for preparing a cross-linked alkyl vinyl ether/maleic anhydride copolymer having improved linear viscoelastic properties desired in oral care preparations, wherein the cross-linking of an alkyl vinyl ether/maleic anhydride copolymer with a polyol compound is carried out at a temperature of from about 50 DEG to about 90 DEG C. and the cross-linked product is recovered.