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:
May. 24, 2016
Filed:
Jun. 04, 2010
Eric L. Morris, Irvine, CA (US);
Eric L. Morris, Irvine, CA (US);
PRC-DeSoto International, Inc., Sylmar, CA (US);
Abstract
A composition for application to a metal substrate comprising at least one metallate compound comprising hexafluorzirconate, zirconyl nitrate, and/or yttrium nitrate is provided. The composition may further comprise additives that promote corrosion resistance of the metal substrate, or the adhesion of subsequent coatings, such as one or more rare earth element salts; allontoin, polyvinylpyrrolidone, surfactants, and other additives and co-inhibitors. A metal substrate such as an aluminum or an aluminum alloy substrate coated with a metallate composition according to the present invention is also provided. A process for preparing a coating on a metal substrate to improve the corrosion resistance of the substrate or improve the adhesion of a subsequent coating is also provided. The process comprises treating the metal substrate with an aqueous solution comprising a metallate compound. The process may further comprise one or more pre-treating the substrate, coating the metal substrate with an oxidizing agent and/or coating the metal substrate with one or more rare earth element salts. A process for preparing the metallate coatings of the invention is also provided.