Slurry polymerization of crosslinked maleic anhydride-alkyl...

Details Slurry polymerization of crosslinked maleic anhydride-alkyl... Slurry polymerization of crosslinked maleic anhydride-alkyl...

C - Chemistry, Metallurgy

08

F

402/309

C08F 2/06 (2006.01) C08F 222/06 (2006.01)

Patent

CA 2031003

FDN-1830 SLURRY POLYMERIZATION OF CROSSLINKED MALEIC ANHYDRIDE - ALKYL VINYL ETHER COPOLYMERS IN A SOLVENT SYSTEM COMPRISING A CARBOXYLIC ACID ESTER AND A SATURED HYDROCARBON ABSTRACT A polymerization process is described herein for making crosslinked copolymers of maleic anhydride and an alkyl vinyl ether characterized in that polymerization is carried out in a solvent system which is a mixture of a carboxylic acid ester and a saturated hydrocarbon, preferably, a mixture of ethyl acetate and cyclohexane in the weight ratio of about 35 to 55% ethyl acetate and 45 to 65% cyclohexane.

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