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:
May. 06, 2025
Filed:
Jun. 28, 2021
Applicant:
Kuraray Co., Ltd., Okayama, JP;
Inventors:
Minoru Okamoto, Okayama, JP;
Sayaka Shimizu, Okayama, JP;
Osamu Kazeto, Okayama, JP;
Mitsunori Asada, Okayama, JP;
Assignee:
KURARAY CO., LTD., Okayama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 5/18 (2005.12); B65D 65/46 (2005.12); C08K 5/053 (2005.12);
U.S. Cl.
CPC ...
C08J 5/18 (2012.12); B65D 65/46 (2012.12); C08K 5/053 (2012.12); C08J 2329/04 (2012.12);
Abstract
A water-soluble film is provided that is excellent in film transparency and water solubility and inhibits sticking between the films. A water-soluble film includes a polyvinyl alcohol resin, wherein a crystallite size obtained from an X-ray profile obtained by wide-angle X-ray measurement is from 4.0 to 5.5 nm and a degree of crystallization obtained from the X-ray profile is from 10.0% to 25.0%, and an external haze is from 7.0% to 30.0%.