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:
Apr. 08, 2025
Filed:
Oct. 26, 2022
Applicant:
Toppan Inc., Tokyo, JP;
Inventors:
Miki Fukugami, Tokyo, JP;
Kaoru Furuta, Tokyo, JP;
Assignee:
TOPPAN INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 27/08 (2006.01); B32B 1/08 (2006.01); B32B 27/32 (2006.01); B65D 65/40 (2006.01);
U.S. Cl.
CPC ...
B32B 27/08 (2013.01); B32B 1/08 (2013.01); B32B 27/32 (2013.01); B65D 65/40 (2013.01); B32B 2250/02 (2013.01); B32B 2250/246 (2013.01); B32B 2255/10 (2013.01); B32B 2255/20 (2013.01); B32B 2255/26 (2013.01); B32B 2255/28 (2013.01); B32B 2307/7242 (2013.01); B32B 2307/7244 (2013.01); B32B 2311/24 (2013.01); B32B 2323/10 (2013.01); B32B 2383/00 (2013.01); B32B 2439/46 (2013.01); B32B 2439/70 (2013.01);
Abstract
A gas barrier film including: a substrate layer containing polypropylene; a resin layer containing a copolymer of propylene and another monomer; a vapor deposition layer of an inorganic oxide; and a gas barrier layer, laminated in this order, wherein the vapor deposition layer has a thickness of 5 nm to 300 nm, the resin layer has a thickness of 0.3 μm or more, and a surface of the resin layer facing the vapor deposition layer has at least one softening temperature in a range of 100° C. to 170° C. when measured by local thermal analysis (LTA).