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:
May. 21, 2019
Filed:
May. 10, 2013
Applicant:
Rhodia Operations, Paris, FR;
Inventors:
Assignee:
RHODIA OPERATIONS, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 19/04 (2006.01); C09K 8/035 (2006.01); C10G 33/04 (2006.01); D21H 21/12 (2006.01); D21C 3/28 (2006.01);
U.S. Cl.
CPC ...
B01D 19/04 (2013.01); B01D 19/0404 (2013.01); C09K 8/035 (2013.01); C10G 33/04 (2013.01); D21C 3/28 (2013.01); D21H 21/12 (2013.01);
Abstract
The invention provides a foam control formulation in the form of a microemulsion, the formulation comprising: (a) from 5 to 70% w/w of primary surfactant, this surfactant having an HLB of from 1 to 12 and/or a cloud point of from 20 to 70° C.; (b) from 2 to 40% w/w of water-insoluble organic carrier liquid; and (c) water. Also provided is the use of this formulation to prevent and/or reduce foam in a fluid system, or as a processing aid to control foam production in a fluid system. The formulation may be used in an aqueous fluid system, such as an oilfield.