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. 19, 2013
Filed:
Jan. 13, 2009
Kaveh Sotoudeh, Naperville, IL (US);
Sherman J. Sprague, Twinsburg, OH (US);
Frank Fun-yuee LU, Naperville, IL (US);
Tom Kim, Naperville, IL (US);
Kaveh Sotoudeh, Naperville, IL (US);
Sherman J. Sprague, Twinsburg, OH (US);
Frank Fun-Yuee Lu, Naperville, IL (US);
Tom Kim, Naperville, IL (US);
Nalco Company, Naperville, IL (US);
Abstract
This invention provides a novel, synergistic composition and method for reducing corrosion, particularly white rust corrosion, on galvanized metal surfaces in industrial water systems. The composition is a synergistic blend and preferably comprises from about 0 to about 10 weight percent of an amine-based white rust corrosion reducer and from about 10 to about 90 weight percent of a benzotriazole. In a method for using the synergistic blend, an effective amount of the blend is introduced onto the galvanized metal surface to form a barrier on the surface. After one or more time intervals, the composition is optionally overlayed onto the initial barrier by reintroducing an effective amount of the composition onto the galvanized metal surface.