Process for production of copolymers of maleic anhydride and...

Details Process for production of copolymers of maleic anhydride and... Process for production of copolymers of maleic anhydride and...

C - Chemistry, Metallurgy

08

F

402/309

C08F 222/06 (2006.01) C08F 216/16 (2006.01)

Patent

CA 2013793

FDN-1734 PROCESS FOR PRODUCTION OF COPOLYMERS OF MALEIC ANHYDRIDE AND AN ALKYL VINYL ETHER IN A STERICALLY HINDERED MONOETHER SOLVENT Abstract What is described herein is a process for making copolymers of maleic anhydride and a C1-C8 alkyl vinyl ether. In this process, a reactor is precharged with a solution of maleic anhydride in a sterically hindered monoether solvent and the alkyl vinyl ether monomer is fed thereto. Copolymerization is effected in the presence of a free radical initiator. A pumpable slurry of the copolymer in the reaction medium is formed upon polymerization, from which a copolymer product which is substantially a benzene-free powder is obtained.

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