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:
Aug. 15, 2000
Filed:
Oct. 30, 1992
Shanti Swarup, Gibsonia, PA (US);
Debra L Singer, Pittsburgh, PA (US);
Gregory J McCollum, Gibsonia, PA (US);
Kurt G Olson, Gibsonia, PA (US);
S Tonya Stefko, Novi, MI (US);
Richard J Sadvary, Pittsburgh, PA (US);
Robyn E McMillan, Allison Park, PA (US);
Michael A Mayo, Pittsburgh, PA (US);
PPG Industries Ohio, Inc., Cleveland, OH (US);
Abstract
An aqueous aminoplast-curable film-forming composition is disclosed. The aqueous film-forming composition is a crosslinkable composition comprising (1) a material containing a plurality of carbamate and/or urea functional groups and (2) an aminoplast crosslinking agent. The aqueous composition provides a coating with improved acid etch resistance, making the compositions particularly useful as automotive clear coats.