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:
Dec. 30, 2008
Filed:
Jun. 07, 2006
Shawn P. Duffy, Cheswick, PA (US);
Anthony M. Chasser, Allison Park, PA (US);
Ronald R. Ambrose, Pittsburgh, PA (US);
Shawn P. Duffy, Cheswick, PA (US);
Anthony M. Chasser, Allison Park, PA (US);
Ronald R. Ambrose, Pittsburgh, PA (US);
PPG Industries Ohio, Inc., Cleveland, OH (US);
Abstract
Low-cure powder coating compositions are disclosed, comprising at least one epoxy-containing resin and/or at least one siloxane-containing resin, and at least one material having the structure wherein Ris an organic radical having 6 to 25 carbon atoms; each Ris independently a multivalent hydrocarbon group having 1 to 20 carbon atoms; Y is each Rand Rare independently alkyl or aryl groups having 1 to 8 carbon atoms; each Z is independently oxygen or nitrogen; Ris absent when Z is oxygen and Ris hydrogen, an alkyl or aryl group having 1 to 20 carbon atoms, or (Y)—R— when Z is nitrogen; a and b are integers; a is at least 1; b is 1 to 3; and (b) at least one epoxy-containing resin and/or at least one siloxane-containing resin. The material can optionally be reacted with an acidic hydrogen-containing compound. Some compositions are curable without using crosslinking agents or accelerators. Methods for coating a substrate using these compositions, the coated substrates, and additional catalysts useful for the same purpose are also disclosed.