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:
Nov. 19, 2002
Filed:
Aug. 21, 2001
Karen A. Barkac, Murrysville, PA (US);
Simion Coca, Pittsburgh, PA (US);
James R. Franks, Gibsonia, PA (US);
Kurt A. Humbert, Bethel Park, PA (US);
Paul H. Lamers, Allison Park, PA (US);
Roxalana L. Martin, Pittsburgh, PA (US);
James B. O'Dwyer, Valencia, PA (US);
Kurt G. Olson, Gibsonia, PA (US);
Daniela White, Pittsburgh, PA (US);
PPG Industries Ohio, Inc., Cleveland, OH (US);
Abstract
A thermosetting composition comprising a co-reactable solid, particulate mixture of (a) capped polyisocyanate crosslinking agent, e.g., a trimer of 1-isocyanato-3,3,5 -trimethyl-5-isocyanatomethylcyclohexane capped with e-caprolactam or 1H-2,5-dimethyl pyrazole, and (b) hydroxy functional polymer, is described. The hydroxy functional polymer is prepared by atom transfer radical polymerization and has well defined polymer chain architecture and polydispersity index of less than 2.5. The thermosetting compositions of the present invention have utility as powder coatings compositions.