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. 29, 1998
Filed:
Feb. 06, 1996
Applicant:
Inventors:
Steven Dunn, Hillsborough, NJ (US);
Steven A Bolkan, Hopewell, NJ (US);
Francis Cala, Highland Park, NJ (US);
Anthony Winston, East Brunswick, NJ (US);
Assignee:
Church & Dwight Inc., Princeton, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23G / ; C23G / ; C23G / ; C23F / ;
U.S. Cl.
CPC ...
134-2 ; 134 40 ; 422-7 ;
Abstract
Prevention of flash rusting of iron-containing substrates is achieved by contacting the substrates with aqueous solutions containing carbonate and/or bicarbonate salts. The treatment process can be effected during cleaning of the substrates with an aqueous alkaline cleaner or during a post cleaning step such as during rinsing of the substrates subsequent to cleaning.