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:
Jun. 30, 2026
Filed:
Jul. 08, 2022
Applicant:
Snf Group, Andrezieux Boutheon, FR;
Inventors:
Cédrick Favero, Andrezieux Boutheon, FR;
Johann Kieffer, Andrezieux Boutheon, FR;
Assignee:
SNF Group, Andrezieux Boutheon, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F 20/58 (2006.01); C09K 8/588 (2006.01); C09K 8/68 (2006.01); C09K 8/80 (2006.01); E21B 43/16 (2006.01); E21B 43/267 (2006.01); E21B 43/27 (2006.01);
U.S. Cl.
CPC ...
C08F 20/58 (2013.01); C09K 8/588 (2013.01); C09K 8/68 (2013.01); C09K 8/80 (2013.01); E21B 43/16 (2013.01); E21B 43/267 (2013.01); E21B 43/27 (2020.05);
Abstract
A water-soluble polymer has weight-average molecular weight greater than 10 million daltons. This polymer is obtained from 2-acrylamido-2-methylpropane sulfonic acid and/or one of its salts at least partially of renewable and non-fossil origin. The polymer can be used in the field of enhanced oil and gas recovery or in the treatment of tailings from the mining industry.