Polymaleic acid, its preparation and its use

Details Polymaleic acid, its preparation and its use Polymaleic acid, its preparation and its use

C - Chemistry, Metallurgy

08

F

402/313, 260/364

C08F 120/08 (2006.01) C02F 5/10 (2006.01) C08F 8/12 (2006.01) C08F 22/02 (2006.01)

Patent

CA 1268774

Abstract of the Disclosure: A process for the preparation of polymaleic acid by polymerizing maleic anhydride in an aromatic hydrocarbon at from 60 to 200°C, using from 1 to 20% by weight, based on maleic anhydride, of peroxyesters derived from saturated or ethylenically unsaturated car- boxylic acids, as the polymerization initiators and hy- drolyzing the polymer, the polymaleic acid thus obtained and the use of the polymaleic acid as an agent for re- ducing scale formation and hard water deposits in systems through which water flows.

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