Modified copolymers, a process for their production, binders...

Details Modified copolymers, a process for their production, binders... Modified copolymers, a process for their production, binders...

C - Chemistry, Metallurgy

09

D

402/305, 400/929

C09D 133/10 (2006.01) C08F 8/00 (2006.01) C08F 8/30 (2006.01) C09D 135/00 (2006.01)

Patent

CA 1328531

Modified Copolymers, a Process for Their Production, Binders Containing the Modified Copolymers and Their Use in Coating Compositions and Sealing Compounds ABSTRACT OF THE DISCLOSURE Binders for moisture-hardening coating or sealing compositions contain modified copolymers having a weight average molecular weight of from 1,500 to 75,000 determined by gel permeation chromatography of olefinically unsaturated compounds containing chemically incorporated moieties which are addition-reactive to amino wherein the modified copolymers contain both (i) intramolecular carboxylic anhydride moieties and (ii) olefinically unsaturated (meth)acrylate moieties in chemically bound form as the moieties which are addition-reactive to amino, with the anhydride equivalent weight being in the range from 392 to 9,800 and the (meth)acrylate equivalent weight in the reange from 284 to 7,100.

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