Method of manufacturing polymaleic anhydride powders

Details Method of manufacturing polymaleic anhydride powders Method of manufacturing polymaleic anhydride powders

C - Chemistry, Metallurgy

08

F

402/313

C08F 22/06 (2006.01) C08F 2/08 (2006.01)

Patent

CA 1271889

ABSTRACT OF THE DISCLOSURE A method is provided of manufacturing pulverulent polymaleic anhydrides in which maleic anhydride is polymerized in an organic solvent in the presence of a dispersant. Polymerization results in high yields of polymaleic anhydride, as a colorless or faintly colored powder. The method requires a lower concentration of radical-forming agent and gives an increased conversion or maleic anhydride, as compared with previously known methods.

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