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:
Mar. 27, 1984
Filed:
May. 08, 1981
Applicant:
Inventors:
Roy F House, Houston, TX (US);
Lonnie D Hoover, Chappell Hill, TX (US);
Assignee:
NL Industries, Inc., New York, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K / ; B01F / ;
U.S. Cl.
CPC ...
252 / ; 252 / ; 252 / ; 2523635 ; 536 86 ; 536 87 ;
Abstract
Polymeric compositions for, and methods of, increasing the viscosity of aqueous brine well servicing fluids comprising adding to the brine a composition containing hydroxyethyl cellulose, a solid organic activating agent for the hydroxyethyl cellulose, and a solvent for the activating agent which also functions as a suspending medium or carrier for the hydroxyethyl cellulose.