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:
Aug. 14, 2012
Filed:
May. 18, 2009
John D. Mcgee, Troy, MI (US);
Thomas S. Smith, Ii, Novi, MI (US);
Brian D. Bammel, Rochester Hills, MI (US);
Todd R. Bryden, Midland, MI (US);
John D. McGee, Troy, MI (US);
Thomas S. Smith, II, Novi, MI (US);
Brian D. Bammel, Rochester Hills, MI (US);
Todd R. Bryden, Midland, MI (US);
Henkel AG & Co. KGaA, Duesseldorf, DE;
Abstract
Disclosed is a release on demand type corrosion inhibitor composition for a metal substrate formed from only non-electrically conductive film forming copolymer(s); a nitrogen containing functional group X, where the group X comprises a pyridine, a dihydropyridine, a pyrrole, an imidazole, or a mixtures thereof; and a metallate anion. The metallate anion binds to a nitrogen in the functional group X by ion pairing. A localized rise in pH is believed to cause release of the anion via a protonation/deprotonation reaction and the released anion suppresses the corrosion formation. The coating composition includes no electrically conductive polymers.