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:
Apr. 17, 1990
Filed:
Jul. 13, 1987
Applicant:
Inventors:
Samuel Porter, Jr, Natrona Heights, PA (US);
Dennis A Simpson, Koppel, PA (US);
William P Blackburn, Evans City, PA (US);
Mark E Endlish, Chicora, PA (US);
Assignee:
PPG Industries, Inc., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ; B05D / ; B32B / ;
U.S. Cl.
CPC ...
428413 ; 428689 ; 428704 ; 428463 ; 428414 ; 428416 ; 428418 ; 4274071 ; 427410 ;
Abstract
There is disclosed herein a composite coating comprising a colored base coat over which is applied a clear top coat, the improvement comprising the base coat which comprises a liquid crosslinkable composition comprising a polyepoxide and a polyacid curing agent; said composition is characterized in that it is substantially free of a cure catalyst, and the top coat comprises a cure catalyst system in an amount sufficient to cure both the base coat and the top coat.