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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 12692354 B1

PDFFull Text
Date of Patent:
Jul. 28, 2026

Filed:

Sep. 22, 2022

Carbon fiber reinforced composite and production method of carbon fiber reinforced composite

Applicant:

Sekisui Chemical Co., Ltd., Osaka, JP;

Inventors:

Ayako Oota, Shiga, JP;

Haruka Yoshida, Shiga, JP;

Assignee:

SEKISUI CHEMICAL CO., LTD., Osaka, JP;

Attorney:

Wenderoth, Lind & Ponack, L.L.P.

Primary Examiner:

Camie S Thompson

Int. Cl.
CPC ...
C08J 5/24 (2006.01); B29C 70/42 (2006.01); B29K 29/00 (2006.01); B29K 63/00 (2006.01); B29K 105/00 (2006.01); B29K 105/08 (2006.01); B29K 307/04 (2006.01); C08L 63/00 (2006.01);
U.S. Cl.
CPC ...
C08J 5/243 (2021.05); C08L 63/00 (2013.01); B29C 70/42 (2013.01); B29K 2029/14 (2013.01); B29K 2063/00 (2013.01); B29K 2105/0005 (2013.01); B29K 2105/0094 (2013.01); B29K 2105/0872 (2013.01); B29K 2307/04 (2013.01); C08J 2363/02 (2013.01); C08J 2429/14 (2013.01);
Abstract

The present invention provides a carbon-fiber-reinforced composite that can reduce the curing time and achieve high mechanical strength while reducing resin bleeding, and a method for producing a carbon-fiber-reinforced composite. Provided is a carbon-fiber-reinforced composite containing: carbon fibers, an epoxy resin, a curing agent, and a thermoplastic resin, wherein a mixture of the epoxy resin and the thermoplastic resin has a ratio of viscosity at 30° C. to viscosity at 90° C. (viscosity at 30° C./viscosity at 90° C.) of less than 100.

Find Patent Forward Citations

Oota, Ayako. (2026). Carbon fiber reinforced composite and production method of carbon fiber reinforced composite (U.S. Patent No. 12692354). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12692354

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

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