C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
402/301
C08F 222/06 (2006.01) C02F 5/10 (2006.01) C02F 5/12 (2006.01) C02F 5/14 (2006.01)
Patent
CA 1336117
Water-soluble copolymers of maleic acid useful as water treatment agents are prepared by copolymerizing (a) from 99 to 80% by weight of maleic anhydride and (b) from 1 to 20% by weight of a monoethylenically unsatu- rated monomer copolymerizable therewith and, facultatively, (c) up to 10% by weight of a crosslinker, at from 60 to 200°C in an aromatic hydrocarbon in the presence of peroxyesters derived from saturated or monoethyleni- cally unsaturated carboxylic acids, and hydrolyzing the anhydride groups of the copolymers following the polymerization.
555765
Denzinger Walter
Goeckel Ulrich
Hartmann Heinrich
Raubenheimer Hans-Juergen
Richter Felix
Basf Aktiengesellschaft
Borden Ladner Gervais Llp
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