The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 13, 1989
Filed:
Jul. 28, 1987
Kazys Sekmakas, Des Plaines, IL (US);
DeSoto, Inc., Des Plaines, IL (US);
Abstract
Aqueous thermosetting coating compositions are disclosed in which water has dispersed therein: (1) an acidic hydroxy-functional resin dispersed in water as a salt with a volatile base; (2) a curing agent reactable with the hydroxy groups of the hydroxy-functional resin to cure the same, this curing agent being dispersed in the aqueous medium containing said component (1); and (3) an aqueous emulsion of cross-linked emulsion copolymer comprising, by weight: (A) from 2% to 20% of polyethylenically unsaturated monomer; (B) from 3% to 30% of hydroxy-functional monoethylenically unsaturated monomer (C) from 0% to 20% of monoethylenically unsaturated carboxylic acid monomer; and (D) the balance of the copolymer consisting essentially of copolymerizable nonreactive monoethylenically unsaturated monomer. The emulsion is used to provide the emulsion copolymer in an amount of from 10% to 80% of the total weight of resinous material.