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:
Dec. 26, 2023
Filed:
Feb. 26, 2021
Applicant:
Kuraray Co., Ltd., Kurashiki, JP;
Inventor:
Yasuhiro Tajima, Kurashiki, JP;
Assignee:
KURARAY CO., LTD., Kurashiki, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08F 216/06 (2006.01); C09K 8/508 (2006.01);
U.S. Cl.
CPC ...
C09K 8/5083 (2013.01); C08F 216/06 (2013.01); C08F 2800/10 (2013.01); C08F 2810/00 (2013.01);
Abstract
Provided are a polyvinyl alcohol-based resin having an excellent plugging effect and a plugging agent for underground treatment. A polyvinyl alcohol-based resin is disclosed, in which a degree of swelling (%) when the polyvinyl alcohol-based resin is immersed in water at 40° C. for 30 minutes and a solubility (%) when the polyvinyl alcohol-based resin is immersed in water at 65° C. for 5 hours satisfy the degree of swelling/the solubility≥3.0.
Tajima, Yasuhiro. (2023). Polyvinyl alcohol-based resin and plugging agent for underground treatment (U.S. Patent No. 11851607). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11851607
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile