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:
Oct. 17, 2023
Filed:
Jan. 27, 2021
Applicant:
Kuraray Co., Ltd., Kurashiki, JP;
Inventors:
Ghebrehiwet Ghebremeskel, Houston, TX (US);
Keisuke Morikawa, Houston, TX (US);
Richard Cazares, Houston, TX (US);
Masaki Kato, Kurashiki, JP;
Assignee:
KURARAY CO., LTD., Kurashiki, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08L 29/04 (2006.01); C09K 8/12 (2006.01); C08J 3/12 (2006.01);
U.S. Cl.
CPC ...
C08L 29/04 (2013.01); C08J 3/12 (2013.01); C09K 8/12 (2013.01); C08L 2205/03 (2013.01);
Abstract
Disclosed are particulate polyvinyl alcohol-based compositions for use in manufacturing chemical materials and in other industrial operations, and for treatments applied to a subterranean formation traversed by the borehole of an oil or gas well, which compositions are prepared by granulating polyvinyl alcohol polymers, and admixing the granules so produced with powder and/or crushing the granules to a specified particle size distribution.