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:
Jul. 09, 2013
Filed:
Dec. 02, 2010
Applicants:
Carter Silvernail, Burnsville, MN (US);
Erik C. Olson, Savage, MN (US);
Elizabeth Kiesel, Hibbing, MN (US);
Inventors:
Carter Silvernail, Burnsville, MN (US);
Erik C. Olson, Savage, MN (US);
Elizabeth Kiesel, Hibbing, MN (US);
Assignee:
Ecolab USA Inc., St. Paul, MN (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C11D 17/00 (2006.01); C11D 3/37 (2006.01); C11D 3/395 (2006.01); C11D 3/00 (2006.01); C11D 3/60 (2006.01); C11D 7/00 (2006.01); C11D 7/60 (2006.01); C02F 5/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A detergent composition for preventing scale on various surfaces includes a threshold system, a caustic and a surfactant system. The threshold system includes a sulfonate/acrylate copolymer, an acrylate homopolymer and a phosphonoalkane carboxylic acid with a sulfonate/acrylate copolymer to acrylate homopolymer weight ratio of between about 2:1 to about 1:2. The pH of the detergent composition is between about 10 and about 13.