Epoxy phosphate-carboxyl copolymers and aqueous coatings...

Details Epoxy phosphate-carboxyl copolymers and aqueous coatings... Epoxy phosphate-carboxyl copolymers and aqueous coatings...

C - Chemistry, Metallurgy

08

G

402/267, 400/302

C08G 59/02 (2006.01) C08F 299/02 (2006.01) C09D 5/08 (2006.01)

Patent

CA 1202449

EPOXY PHOSPHATE-CARBOXYL COPOLYMERS AND AQUEOUS COATINGS CONTAINING THE SAME ABSTRACT Epoxy phosphate-carboxyl copolymers substantially free of epoxy functionality and aqueous coatings con- taining the same are disclosed. These copolymers are formed by copolymerizing monoethylenically unsaturated monomers, including carboxyl-functional monomer, in an organic solvent solution containing an epoxy-functional epoxy phosphate, there being at least 5% of carboxyl- functional monomer and at least 10% of total monomers present in the copolymer. The copolymer is converted into a water soluble salt with volatile amine and phenoplast resins are preferably used to provide at least part of the curing agent.

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