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:
Dec. 25, 1979
Filed:
Jul. 22, 1977
Applicant:
Inventors:
Assignee:
Oxy Metal Industries Corporation, Warren, MI (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09D / ;
U.S. Cl.
CPC ...
106 1415 ; 422 15 ; 106 1442 ; 106 1443 ; 148-624 ; 252394 ; 252395 ;
Abstract
An environmentally acceptable composition and process imparts improved corrosion resistance and paint adhesion to a conversion coated surface of zinc or zinc alloy. The coated surface is post-treated with an aqueous composition containing a thiourea compound and a vegetable tannin.