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:
Nov. 16, 2021
Filed:
Jun. 28, 2018
Applicant:
Kuraray Co., Ltd., Kurashiki, JP;
Inventors:
Masahiro Baba, Kurashiki, JP;
Toshinori Kato, Kurashiki, JP;
Assignee:
KURARAY CO., LTD., Kurashiki, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08F 8/28 (2006.01);
U.S. Cl.
CPC ...
C08F 8/28 (2013.01);
Abstract
There is provided a method for producing a modified polyvinyl alcohol resin, comprising step (A) of acetalizing polyvinyl alcohol particles swollen with a solvent capable of swelling the polyvinyl alcohol particles by reacting them with a carbonyl compound and/or an acetalized carbonyl compound in the presence of the solvent, wherein a content of an organic solvent in the solvent is 5% by mass or more.
Quick Actions:
Baba, Masahiro. (2021). Method for producing modified polyvinyl alcohol resin (U.S. Patent No. 11174327). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11174327
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile