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:
Nov. 21, 1995
Filed:
Nov. 17, 1994
Applicant:
Inventor:
San C Yuan, Farmington Hills, MI (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C08K / ;
U.S. Cl.
CPC ...
524108 ; 524398 ; 428457 ; 428458 ; 428480 ;
Abstract
An improved solvent borne primer composition containing as the binder a polyester, polyester urethane or an epoxy polyester and a monomeric or polymeric alkylated melamine formaldehyde crosslinking agent and containing pigments in a pigment to binder weight ratio of about 10/100 to 200/100; where the improvement is the use of about 0.1-10% by weight, based on the weight of the binder, of a zircoaluminate coupling agent of the formula ##STR1## where R is an organo functional group; wherein the primer provides excellent adhesion to waterborne basecoats that are applied over the primer.