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:
Jul. 29, 2014
Filed:
Oct. 08, 2010
Michael Zalich, Pittsburgh, PA (US);
Mark P. Bowman, New Kensington, PA (US);
Jonathan T. Martz, Glenshaw, PA (US);
Stephen John Thomas, Aspinwall, PA (US);
Gregory J. Mccollum, Gibsonia, PA (US);
Michael Zalich, Pittsburgh, PA (US);
Mark P. Bowman, New Kensington, PA (US);
Jonathan T. Martz, Glenshaw, PA (US);
Stephen John Thomas, Aspinwall, PA (US);
Gregory J. McCollum, Gibsonia, PA (US);
PPG Industries Ohio, Inc., Cleveland, OH (US);
Abstract
Methods of catalyzing chemical reactions are provided. A tri-substituted phosphine having at least one substituent that is an alkyl group is added as a catalyst to reaction mixtures. Reaction mixtures contain uretdiones, anhydrides, or isocyanate functional materials including isocyanurates, in various combinations with hydroxyl, thiol, and/or amine functional materials. Curable compositions comprising these catalysts and reaction mixtures are also provided.