Water soluble epoxy ester copolymers for interior can use

Details Water soluble epoxy ester copolymers for interior can use Water soluble epoxy ester copolymers for interior can use

C - Chemistry, Metallurgy

08

G

402/279, 400/540

C08G 81/02 (2006.01) C08F 299/02 (2006.01) C08G 59/42 (2006.01) C08L 63/10 (2006.01)

Patent

CA 1162344

ABSTRACT Epoxy ester copolymer dispersible in water with the aid of an amine, which may be ammonia, is provided by esterifying a polyepoxide having a 1,2-epoxy equivalency in excess of 1.0 and a molecular weight of from 350 to 8000 with at least 0.5% of the weight of the copolymer of a monoester of a saturated monohy- dric alcohol with a monoethylenically unsaturated dicarboxylic acid which resists homopolymerization. This polyepoxide ester is copolymerized with from 15% to 70% of monoethylenic monomers, based on the weight of the copolymer, these monoethyl- enic monomers including carboxyl functional monomer providing an acid number of from 20-150 in the copolymer. The copolymers are useful in aqueous coatings.

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