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:
Aug. 25, 2026
Filed:
Jun. 14, 2021
Applicant:
Kuraray Co., Ltd., Okayama, JP;
Inventors:
Assignee:
KURARAY CO., LTD., Okayama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65D 65/46 (2006.01); C08J 5/18 (2006.01); C08L 29/04 (2006.01); C09D 129/04 (2006.01);
U.S. Cl.
CPC ...
C08J 5/18 (2013.01); B65D 65/46 (2013.01); C08L 29/04 (2013.01); C08J 2300/14 (2013.01); C08J 2329/04 (2013.01); C09D 129/04 (2013.01); Y10T 428/1341 (2015.01); Y10T 428/1379 (2015.01);
Abstract
[Problem to be solved] To provide a water-soluble film capable of achieving both cold water solubility and resistance to oxidative deterioration. [Solution] A water-soluble film containing a polyvinyl alcohol resin, wherein the water-soluble film has a surface on at least one side in which an abundance ratio of carbonyl in all carbon bonds obtained by X-ray photoelectron spectroscopy is 1 to 5%, and a complete dissolution time in water at 10° C. is 120 seconds or less.