Low voc, aqueous dispersed, epoxy crosslinked polyester acrylic

Details Low voc, aqueous dispersed, epoxy crosslinked polyester acrylic Low voc, aqueous dispersed, epoxy crosslinked polyester acrylic

1994-07-14

1996-11-19

Marquis, Melvyn I.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

523406, 523408, 523409, 523501, C08K 320, C08L 6302

Patent

active

055763600

ABSTRACT:
A coating composition substantially free of volatile organic compounds and containing a film-forming polymeric binder comprising epoxy crosslinked microgel particles having a particle size less than about 0.15 microns. The microgel particles are produced by first dispersing carboxyl functional addition copolymer dispersant into water followed by dispersing carboxyl functional polyester oligomer and diepoxide resin into the aqueous dispersant, and then esterifying the epoxy resin with the carboxyl functionality on the copolymer and oligomer. In a further variation, the polyester oligomer can contain maleic or fumaric unsaturation and subsequently grafted with in-situ copolymerized ethylenic monomers.

REFERENCES:
patent: 4897434 (1990-01-01), Shimada et al.

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