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. 09, 1985
Filed:
Jul. 29, 1983
George L Higgins, Windsor, GB;
Parker Chemical Company, Madison Heights, MI (US);
Abstract
A composition for forming paint-base coatings on aluminum comprising an aqueous solution having a pH of from about 9 to about 12.5 and containing an effective coating forming amount of a complexing agent which has at least one of a nitrogen atom with a lone pair of electrons and a carboxylate group, which solution is substantially free of components which inhibit the coating formation. Aluminum surfaces are treated with the this solution to form a paint-base coating having a thickness of at least about 0.05 g/m.sup.2 and, thereafter, a paint or similar siccative coating is applied to the surface without the prior application of chromate or other conventional paint-base coating forming materials.