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:
Jun. 30, 1998
Filed:
Jun. 10, 1997
Applicant:
Inventors:
Jiangbo Ouyang, Media, PA (US);
William L Harpel, Langhorne, PA (US);
Assignee:
BetzDearborn Inc., Trevose, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C23C / ;
U.S. Cl.
CPC ...
106 1412 ; 106 1434 ; 106 1439 ; 106 1441 ; 106 1444 ; 148243 ; 148259 ;
Abstract
Compositions and methods for passivating galvanized metal surfaces are disclosed. The addition of a paraffin wax, preferably emulsified with nonionic surfactants to commercial passivation treatment (chrome or non-chrome) enhances passivation.