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. 28, 2026
Filed:
Mar. 23, 2023
Applicant:
Toppan Inc., Tokyo, JP;
Inventors:
Shukiko Imaizumi, Tokyo, JP;
Kazuyoshi Ro, 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 27/32 (2006.01); B65D 75/00 (2006.01); B65D 75/58 (2006.01);
U.S. Cl.
CPC ...
B65D 65/40 (2013.01); B32B 7/12 (2013.01); B32B 27/08 (2013.01); B32B 27/32 (2013.01); B32B 27/322 (2013.01); B65D 75/008 (2013.01); B65D 75/58 (2013.01); B32B 2250/242 (2013.01); B32B 2255/10 (2013.01); B32B 2255/26 (2013.01); B32B 2255/28 (2013.01); B32B 2270/00 (2013.01); B32B 2307/516 (2013.01); B32B 2307/546 (2013.01); B32B 2307/5825 (2013.01); B32B 2439/06 (2013.01); B65D 2207/00 (2013.01); B65D 2565/385 (2013.01);
Abstract
A laminate includes a substrate layer and a heat-sealing layer. A fold of the laminate produced by a weight of a 2 kg roller has a folding angle of 20 to 55°, and a content of polyethylene in the laminate is 90% by mass or more. The folding angle may be 25 to 55°. The substrate layer may contain high-density polyethylene. The substrate layer may be a uniaxially oriented linear low-density polyethylene film or an unstretched film made of polyethylene.