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:
Apr. 24, 2012
Filed:
Nov. 21, 2008
Applicants:
Eugene Dakin, Katy, TX (US);
Hui Zhang, Sugar Land, TX (US);
Bethicia B. Prasek, The Woodlands, TX (US);
Inventors:
Eugene Dakin, Katy, TX (US);
Hui Zhang, Sugar Land, TX (US);
Bethicia B. Prasek, The Woodlands, TX (US);
Assignee:
M-I L.L.C., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/68 (2006.01); E21B 43/16 (2006.01); B01F 3/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
An oil-in-water emulsion that includes a brine continuous phase; and an oleaginous discontinuous phase stabilized by an emulsifier blend, the emulsifier blend comprising: an emulsifier having an HLB greater than 11; and an amphoteric chemotrope is disclosed. Emulsifier blends comprising an emulsifier having an HLB greater than 11 and an amphoteric chemotrope and methods of using emulsifier blends are also disclosed.