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. 21, 2017
Filed:
Jun. 18, 2014
Applicant:
Ppg Industries Ohio, Inc., Cleveland, OH (US);
Inventors:
Mark W. McMillen, Cabot, PA (US);
Edward F. Rakiewicz, Gibsonia, PA (US);
Mark W. Simpson, Warren, MI (US);
James A DeChant, North Olmsted, OH (US);
Assignee:
PPG Industries Ohio, Inc., Cleveland, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 22/34 (2006.01); C25D 5/34 (2006.01); C09D 5/24 (2006.01); C23C 22/36 (2006.01); C23C 22/83 (2006.01); C25D 13/20 (2006.01); B05D 3/10 (2006.01); C23C 28/00 (2006.01); C22C 1/02 (2006.01); C23C 22/00 (2006.01);
U.S. Cl.
CPC ...
C09D 5/24 (2013.01); B05D 3/102 (2013.01); C22C 1/02 (2013.01); C23C 22/34 (2013.01); C23C 22/361 (2013.01); C23C 22/83 (2013.01); C23C 28/00 (2013.01); C25D 13/20 (2013.01); Y10T 428/12778 (2015.01); Y10T 428/12806 (2015.01);
Abstract
Disclosed are pretreatment compositions and associated methods for treating metal substrates with pretreatment compositions, including ferrous substrates, such as cold rolled steel and electrogalvanized steel. The pretreatment composition includes: (a) a group IIIB and/or IVB metal; (b) free fluorine; (c) a source of aluminum ions; and (d) water. The methods include contacting the metal substrates with the pretreatment composition.