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. 08, 2023
Filed:
May. 31, 2017
Kuraray Co., Ltd., Kurashiki, JP;
Yasuhiro Nonaka, Kurashiki, JP;
Makoto Suzuki, Kurashiki, JP;
KURARAY CO., LTD., Kurashiki, JP;
Abstract
A film with a gas barrier resin having a glass transition temperature of 70° C. or below and an elastomer, and having an oxygen permeability coefficient of 200 mL/(m·day·atm) or less. In a case where tension is applied to stretch the film in a machine direction (MD) at 20° C. such that a twofold increase in length of the film is kept for 30 seconds, and then the tension is released, a ratio L/Lis 1.5 or less, where Ldenotes the length of the film prior to application of the tension and Ldenotes the length of the film subsequent to release of the tension. An elongation ratio at break E/Eof the film is preferably 0.9 or more and 1.7 or less, there Edenotes the elongation at break in MD and Edenotes the elongation at break in the transverse direction (TD).