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. 24, 2008
Filed:
Jun. 05, 2007
Anthony M. Chasser, Allison Park, PA (US);
Shawn P. Duffy, Cheswick, PA (US);
Ronald R. Ambrose, Pittsburgh, PA (US);
Anthony M. Chasser, Allison Park, PA (US);
Shawn P. Duffy, Cheswick, PA (US);
Ronald R. Ambrose, Pittsburgh, PA (US);
PPG Industries Ohio, Inc., Cleveland, OH (US);
Abstract
Low-cure powder coating compositions are disclosed. The compositions comprise a polyepoxide and a material having the structure wherein Ris an organic radical having 6 to 25 carbon atoms; Ris an organic radical having 1 to 20 carbon atoms; Rand Rare independently alkyl or phenyl groups having 1 to 8 carbon atoms; Z is oxygen or nitrogen, and when Z is oxygen Ris absent and when Z is nitrogen Ris hydrogen or is and n is 1 to 4. The material can optionally be reacted with an acidic hydrogen-containing compound. The compositions are curable without the use of crosslinking agents or accelerators. Methods for coating a substrate using these compositions, and substrates coated thereby, are also disclosed, as are additional catalysts useful for the same purpose.