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:
Apr. 05, 2022
Filed:
Apr. 02, 2019
Applicant:
Mitsubishi Chemical Corporation, Tokyo, JP;
Inventors:
Yukihiro Harada, Tokyo, JP;
Atsushi Nohara, Tokyo, JP;
Assignee:
Mitsubishi Chemical Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J 5/24 (2006.01); B32B 5/26 (2006.01); C08L 63/00 (2006.01); C08G 59/40 (2006.01); C08G 59/26 (2006.01);
U.S. Cl.
CPC ...
C08J 5/24 (2013.01); B32B 5/26 (2013.01); C08G 59/26 (2013.01); C08G 59/4021 (2013.01); C08L 63/00 (2013.01); B32B 2260/046 (2013.01); C08J 2363/00 (2013.01); C08J 2463/00 (2013.01); C08J 2477/00 (2013.01); C08L 2205/025 (2013.01); C08L 2205/035 (2013.01);
Abstract
A prepreg comprising the following constituent elements (A), (B), and (C), the constituent element (C) being present in a surface layer of the prepreg: Constituent element (A): a reinforcing fiber base material; Constituent element (B): an epoxy resin composition containing a curing agent, the epoxy resin composition being cured within the range of from 90° C. to 140° C. (inclusive); and Constituent element (C): particles of a thermoplastic resin having a melting point or a glass transition temperature within the range of from 90° C. to 140° C. (inclusive).