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.

Date of Patent:
Mar. 03, 1992

Filed:

Dec. 07, 1989
Applicant:
Inventors:

John G Biggin, Temple Normanton, GB;

Peter R Sliwinski, Erdington, GB;

Peter J Mitchell, Great Bowden, GB;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23F / ;
U.S. Cl.
CPC ...
106 1411 ; 106 1412 ; 106 1421 ;
Abstract

A no-rinse aqueous chemical composition for treating a metallic surface prior to application of an organic siccative coating characterized in that it comprises from 1.5 to 40 g/l (total) of Cr (VI) and optionally one or more of Ni, Co, Mg, Fe and Zn, and from 0.3 to 6.0 g/l (total) of F and optionally PO.sub.4.sup.3- is disclosed. A process for treating a metallic surface prior to application of an organic siccative coating characterized in that it comprises applying to the surface such a composition and not rinsing is also disclosed.


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