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:
Jun. 25, 2024
Filed:
Oct. 14, 2021
Kuraray Co., Ltd., Kurashiki, JP;
Osamu Kazeto, Kurashiki, JP;
Yasutaka Inubushi, Tokyo, JP;
KURARAY CO., LTD., Kurashiki, JP;
Abstract
A PVA film containing PVA that does not increase carbon dioxide existing in the global environment or has a small increase amount even when carbon dioxide is generated by a biodegradation treatment or an incineration treatment. A polyvinyl alcohol resin film having a polyvinyl alcohol resin with an abundance ratio of carbon 14 in total carbon constituting the polyvinyl alcohol resin of 1.0×10or more. A method for discriminating a polyvinyl alcohol resin film, the method including discriminating a polyvinyl alcohol resin film containing a polyvinyl alcohol resin (Ab) in which at least part of the carbon is derived from bio-derived ethylene.