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:
Dec. 16, 2025
Filed:
Jan. 03, 2023
Applicant:
Toppan Inc., Tokyo, JP;
Inventors:
Assignee:
TOPPAN INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 7/048 (2020.01); B65D 65/42 (2006.01); C08J 5/18 (2006.01);
U.S. Cl.
CPC ...
C08J 7/048 (2020.01); B65D 65/42 (2013.01); C08J 5/18 (2013.01); C08J 2367/02 (2013.01);
Abstract
A resin film configured to form, together with a gas barrier layer, a laminate for producing a packaging body. The resin film contains polyethylene terephthalate. In a loss tangent curve indicating the relationship between tan δ and temperature of the resin film, the tan δ at a peak position is 0.160 or more and 0.190 or less.