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.

Date of Patent:
Feb. 28, 2012

Filed:

Feb. 24, 2005
Applicants:

Eric C. Ward, Cookeville, TN (US);

Alvie L. Foster, Jr., Chattanooga, TN (US);

Michael L. Standish, Chattanooga, TN (US);

Ivonne C. Weidner, Hixson, TN (US);

Inventors:

Eric C. Ward, Cookeville, TN (US);

Alvie L. Foster, Jr., Chattanooga, TN (US);

Michael L. Standish, Chattanooga, TN (US);

Ivonne C. Weidner, Hixson, TN (US);

Assignee:

Akzo Nobel N.V., Arnhem, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23F 11/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

Alternative inhibitors that offer an improvement over tolyltriazole in inhibiting yellow metal corrosion. The dithiocarbamate compounds and their salts were compared to that of tolyltriazole under identical conditions. These comparative tests were conducted in common corrosion testing systems, using both electrochemical corrosion cells and pilot cooling rigs, using various water conditions. The test methods included electrochemical studies such as linear polarization resistance, open circuit potential versus time, Tafel and cyclic polarization.


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