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. 06, 2024
Filed:
Jul. 20, 2022
Applicant:
Kuraray Co., Ltd., Kurashiki, JP;
Inventors:
Osamu Kazeto, Kurashiki, JP;
Yasutaka Inubushi, Tokyo, JP;
Assignee:
KURARAY CO., LTD., Kurashiki, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08L 29/04 (2006.01); C08F 10/06 (2006.01); C08F 216/06 (2006.01); C08J 5/18 (2006.01); C08F 116/06 (2006.01);
U.S. Cl.
CPC ...
C08L 29/04 (2013.01); C08F 216/06 (2013.01); C08J 5/18 (2013.01); C08F 116/06 (2013.01); C08J 2329/04 (2013.01); C08L 2203/16 (2013.01);
Abstract
A method for discriminating a polyvinyl alcohol resin film containing a polyvinyl alcohol resin in which all or a part of carbon is derived from bio-derived ethylene from a polyvinyl alcohol resin film containing only a polyvinyl alcohol resin derived only from fossil fuel-derived ethylene by measuring an abundance ratioC/C of carbon 14 (C) in total carbon.