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. 22, 2016
Filed:
Apr. 04, 2011
Applicants:
John Richardson, Hanover, VA (US);
Mark Puchovich, Henrico, VA (US);
Vladimir Djukanovic, Henrico, VA (US);
Karen Williams, Richmond, VA (US);
Inventors:
John Richardson, Hanover, VA (US);
Mark Puchovich, Henrico, VA (US);
Vladimir Djukanovic, Henrico, VA (US);
Karen Williams, Richmond, VA (US);
Assignee:
CHEMTREAT, INC., Glen Allen, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 19/04 (2006.01); C08G 65/26 (2006.01); C08L 71/02 (2006.01);
U.S. Cl.
CPC ...
C08G 65/2624 (2013.01); B01D 19/04 (2013.01); B01D 19/0413 (2013.01); C08L 71/02 (2013.01);
Abstract
Disclosed is a method for inhibiting the formation of foam in aqueous systems by adding foam control composition including a polyoxyethylene and/or a polyoxypropylene nonionic fatty acid derivative and a quaternary ammonium surfactant.