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:
Sep. 14, 2021
Filed:
Aug. 28, 2019
Applicant:
Kuraray Co., Ltd., Kurashiki, JP;
Inventors:
Ghebrehiwet Ghebremeskel, Houston, TX (US);
Masaki Kato, Houston, TX (US);
Levi Neufeld, Houston, TX (US);
Brittany Spell, Houston, TX (US);
Assignee:
KURARAY CO., LTD., Kurashiki, JP;
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/88 (2006.01); C08F 216/38 (2006.01); C08F 220/18 (2006.01); C08L 29/14 (2006.01); C08L 33/06 (2006.01); E21B 33/138 (2006.01);
U.S. Cl.
CPC ...
C09K 8/885 (2013.01); C08F 216/38 (2013.01); C08F 220/18 (2013.01); C08L 29/14 (2013.01); C08L 33/062 (2013.01); E21B 33/138 (2013.01); C08L 2205/06 (2013.01);
Abstract
Provided are particulate polyvinyl alcohol-based diverting agents for use in subterranean treatments, which are prepared by compacting a specified polyvinyl alcohol copolymer optionally with certain specified additives and optionally other polyvinyl alcohols.