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:
Jul. 29, 2025
Filed:
Apr. 18, 2023
Applicant:
Toppan Inc., Tokyo, JP;
Inventors:
Takeshi Nishikawa, Tokyo, JP;
Kaoru Furuta, Tokyo, JP;
Miki Fukugami, Tokyo, JP;
Ayumi Tanaka, Tokyo, JP;
Mikinori Yamada, Tokyo, JP;
Assignee:
TOPPAN INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65D 65/40 (2006.01); B32B 7/12 (2006.01); B32B 27/08 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); B65D 65/42 (2006.01); B65D 81/24 (2006.01);
U.S. Cl.
CPC ...
B65D 65/40 (2013.01); B32B 27/32 (2013.01); B65D 65/42 (2013.01); B65D 81/24 (2013.01); B32B 7/12 (2013.01); B32B 27/08 (2013.01); B32B 27/306 (2013.01); B32B 2255/10 (2013.01); B32B 2255/20 (2013.01); B32B 2255/205 (2013.01); B32B 2255/26 (2013.01); B32B 2255/28 (2013.01); B32B 2307/514 (2013.01); B32B 2307/536 (2013.01); B32B 2307/54 (2013.01); B32B 2307/748 (2013.01); B32B 2553/00 (2013.01); B65D 2565/387 (2013.01);
Abstract
A gas barrier laminate including: a substrate layer which contains a polyolefin resin; a barrier layer; and an overcoat layer which contains a polyvinyl alcohol resin, the overcoat layer having a surface which has a surface hardness of 1.5 GPa or less, as measured by a nanoindentation method.