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:
Jun. 01, 2022
Applicant:
Toppan Inc., Tokyo, JP;
Inventors:
Yuki Hayashi, Tokyo, JP;
Junpei Hayashi, Tokyo, JP;
Kenta Osawa, Tokyo, JP;
Takayuki Tani, Tokyo, JP;
Assignee:
TOPPAN INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 27/08 (2006.01); B32B 7/12 (2006.01); B32B 27/32 (2006.01); B65D 65/40 (2006.01); B65D 65/42 (2006.01); C23C 14/08 (2006.01); C23C 14/20 (2006.01); C23C 14/30 (2006.01);
U.S. Cl.
CPC ...
B32B 27/08 (2013.01); B32B 7/12 (2013.01); B32B 27/32 (2013.01); B65D 65/40 (2013.01); B65D 65/42 (2013.01); C23C 14/081 (2013.01); C23C 14/20 (2013.01); C23C 14/30 (2013.01); B32B 2255/10 (2013.01); B32B 2255/205 (2013.01); B32B 2255/26 (2013.01); B32B 2307/518 (2013.01); B32B 2307/538 (2013.01); B32B 2307/7244 (2013.01); B32B 2553/00 (2013.01);
Abstract
A gas barrier film includes a substrate containing polypropylene as a main component, a gas barrier layer on a first surface of the substrate, and a coating layer on the gas barrier layer. Infrared spectroscopy of the first surface indicates a peak intensity (I) at 1360 to 1390 cmand a peak intensity (I) at 1440 to 1480 cmin a ratio satisfying the formula: (I)/I()≤1.65.