Preparation of copolymers of monoalkyl maleates or maleic...

Details Preparation of copolymers of monoalkyl maleates or maleic... Preparation of copolymers of monoalkyl maleates or maleic...

C - Chemistry, Metallurgy

08

F

C08F 220/00 (2006.01) C08F 222/06 (2006.01)

Patent

CA 2044182

O.Z. 0050/41659 Abstract of the Disclosure: Copolymers of monoalkyl maleates or maleic acid and salts thereof and vinyl alkyl ethers are prepared by free radical copolymerization of maleic anhydride and vinyl alkyl ethers and subsequent reaction with an alkanol or water and optionally metal hydroxides and/or oxides in a process wherein at every stage of the polymerization the vinyl alkyl ether compon- ent is present in excess in the reaction mixture, the free radical copolymerization is carried out in acetone and the acetone is removed by distillation during or after the esterification or hydrolysis, which comprises using a peroxyester of a carboxylic acid of 8 or more carbon atoms as polymerization initiator. The copolymers obtained are used in cosmetic preparations.

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