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:
Nov. 08, 2016
Filed:
May. 10, 2007
Applicants:
Kirk Kramer, West Bloomfield, MI (US);
Lisa K. Salet, Sterling Heights, MI (US);
Inventors:
Kirk Kramer, West Bloomfield, MI (US);
Lisa K. Salet, Sterling Heights, MI (US);
Assignee:
Henkel AG & Co. KGaA, Duesseldorf, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 22/30 (2006.01); C23C 22/34 (2006.01); C23C 22/83 (2006.01); C23C 22/56 (2006.01);
U.S. Cl.
CPC ...
C23C 22/34 (2013.01); C23C 22/83 (2013.01); C23C 2222/10 (2013.01);
Abstract
A low sludge trivalent chromium based conversion coating bath is provided which forms corrosion resistant coatings on aluminum and aluminum alloys by immersion in aqueous solutions containing trivalent chromium ions and fluorometallate ions followed by optional rinsing. Trivalent chromium coated aluminum also serves as an effective base for paint primers.