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. 09, 2008
Filed:
May. 02, 2005
Cathy A. Taylor, Allison Park, PA (US);
Daniel Rardon, Sewickley, PA (US);
Paul Lamers, Allison Park, PA (US);
Kaliappa G. Ragunathan, Gibsonia, PA (US);
Shanti Swarup, Allison Park, PA (US);
Michael Hart, Cleveland Heightsy, OH (US);
Cathy A. Taylor, Allison Park, PA (US);
Daniel Rardon, Sewickley, PA (US);
Paul Lamers, Allison Park, PA (US);
Kaliappa G. Ragunathan, Gibsonia, PA (US);
Shanti Swarup, Allison Park, PA (US);
Michael Hart, Cleveland Heightsy, OH (US);
PPG Industries Ohio, Inc., Cleveland, OH (US);
Abstract
The present invention is directed to a passivating material suitable for passivating a metal surface. The passivating material comprises a polymer which comprises (a) at least one nitro group, and/or pyridine group, and/or phenolic hydroxyl group; and (b) at least one group selected from a phosphorous-containing group and/or a carboxylic acid group, wherein the at least one phosphorous-containing group is selected from a phosphate, a phosphite, or a non-nitrogen substituted phosphonate.