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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.:

US 12600815 B1

PDFFull Text
Date of Patent:
Apr. 14, 2026

Filed:

Aug. 29, 2024

Stretchable resin composition, and resin sheet material, metal foil with resin, metal-clad laminate, and wiring board each including or obtained using same

Applicant:

Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;

Inventors:

Tomohiro Fukao, Osaka, JP;

Tomoaki Sawada, Osaka, JP;

Takatoshi Abe, Osaka, JP;

Assignee:

PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka, JP;

Attorney:

GREENBLUM & BERNSTEIN, P.L.C.

Primary Examiner:

Mark Kopec

Int. Cl.
CPC ...
H01B 1/22 (2006.01); C08G 59/02 (2006.01); C08G 59/32 (2006.01); C08J 7/04 (2020.01); C09D 5/24 (2006.01); C09D 163/00 (2006.01); H05K 1/03 (2006.01); H05K 1/02 (2006.01);
U.S. Cl.
CPC ...
C08G 59/3209 (2013.01); C08J 7/0427 (2020.01); C09D 5/24 (2013.01); C09D 163/00 (2013.01); H01B 1/22 (2013.01); H05K 1/032 (2013.01); C08J 2363/00 (2013.01); H05K 1/0283 (2013.01);
Abstract

An aspect of the present invention relates to a stretchable resin composition containing an epoxy resin and a curing agent, in which the epoxy resin has a weight average molecular weight of 50,000 or more and 3,000,000 or less and a polydispersity of average molecular weights (Mw/Mn) that satisfies the following Formula (1): 1.1≤Mw/Mn≤3.0(1) (wherein, Mn represents a number average molecular weight and Mw represents a weight average molecular weight), the curing agent is a crystalline compound, and a glass transition temperature of a cured product of the stretchable resin composition is 60° C. or less.

Find Patent Forward Citations

Fukao, Tomohiro. (2026). Stretchable resin composition, and resin sheet material, metal foil with resin, metal-clad laminate, and wiring board each including or obtained using same (U.S. Patent No. 12600815). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12600815

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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