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.

Date of Patent:
Mar. 10, 2026

Filed:

Oct. 25, 2022
Applicant:

Toppan Inc., Tokyo, JP;

Inventor:

Junya Imamoto, Tokyo, JP;

Assignee:

TOPPAN INC., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 50/562 (2021.01); H01M 50/55 (2021.01);
U.S. Cl.
CPC ...
H01M 50/562 (2021.01); H01M 50/55 (2021.01);
Abstract

A resin film for a terminal which includes at least three layers, which define a first outer surface and a second outer surface of the resin film, the first outer surface being opposed to the second outer surface; a first adhesive layer which is one of the three layers and is arranged to form the first outer surface of the resin film; a second adhesive layer which is one of the three layers and is arranged to form the second outer surface of the resin film; and an insulating layer which is arranged between the first adhesive layer and the second adhesive layer. The first adhesive layer contains first polypropylene and second polypropylene. The first polypropylene has a long-chain branched structure. The second polypropylene has no long-chain branched structure and has a melting point of 80° C. to 155° C.


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