Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1977-10-21
1979-04-24
Griffin, Ronald W.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260 19UA, 260 21, 260 23EP, 260 23CP, 260 296NR, 260 296RW, C09D 352, C09D 356, C09D 358, C09D 502
Patent
active
041511310
ABSTRACT:
Low temperature curing aqueous coatings are provided in which the resin solids are constituted by an epoxy ester of a resinous polyepoxide with at least about 0.2 moles of monocarboxylic acid containing conjugated unsaturation and at least about 0.5 mole of monocarboxylic acid containing nonterminal nonconjugated unsaturation per equivalent in the polyepoxide. This epoxy ester is substantially free of epoxy groups and is copolymerized in solvent solution with monoethylenic monomers containing terminal unsaturation, including about 3% to about 20% carboxyl-functional monomers based on the weight of the copolymer to provide a nongelled, solvent-soluble copolymer possessing residual ethylenic unsaturation so that the copolymer can be dispersed in water with the aid of a base. These epoxy ester copolymers will dry and cure in air at room temperature. Also, and by including in the copolymer a proportion of monoethylenic monomer containing terminal unsaturation and providing a primary hydroxy group, the copolymer contains primary hydroxyl groups as well as carboxyl groups and residual unsaturation so that when aminoplast or phenoplast resin is incorporated in the water solutions, the applied coatings cure at remarkably low temperature to form solvent and corrosion-resistant coatings.
REFERENCES:
patent: 2596737 (1952-05-01), Tess et al.
patent: 2877195 (1959-03-01), McNabb
patent: 3107226 (1963-10-01), Tonner et al.
patent: 3457324 (1969-07-01), Sekmakas
patent: 3506601 (1970-04-01), Sekmakas
patent: 3536641 (1970-10-01), Sekmakas et al.
patent: 3674731 (1972-07-01), Guldenpfennig
Sekmakas Kazys
Shah Raj
DeSoto, Inc.
Griffin Ronald W.
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