04151131 is referenced by 16 patents and cites 7 patents.

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.

Title
Low temperature curing epoxy ester copolymers
Application Number
749968
Publication Number
4151131
Application Date
October 21, 1977
Publication Date
April 24, 1979
Inventor
Raj Shah
Schaumburg
IL, US
Kazys Sekmakas
Chicago
IL, US
Agent
Dressler Goldsmith Clement Gordon & Shore
Assignee
DeSoto
IL, US
IPC
C09D 5/02
C09D 3/58
C09D 3/56
C09D 3/52
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