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:
Jan. 11, 2011
Filed:
Jul. 05, 2007
Paul H. Lamers, Allison Park, PA (US);
Christopher A. Verardi, Pittsburgh, PA (US);
Michele L. Meli, Ambridge, PA (US);
Carolyn A.k. Novak, Gibsonia, PA (US);
Paul H. Lamers, Allison Park, PA (US);
Christopher A. Verardi, Pittsburgh, PA (US);
Michele L. Meli, Ambridge, PA (US);
Carolyn A.K. Novak, Gibsonia, PA (US);
PPG Industries Ohio, Inc., Cleveland, OH (US);
Abstract
An aqueous dispersion comprising a reaction product of trimellitic anhydride and a polyol, wherein the molar ratio of trimellitic anhydride to polyol in the reaction product ranges from 1:2 to 1:4, and wherein the reaction product is further reacted with an anhydride to form another reaction product. A method of making a resin comprising the reaction product described above is also disclosed.