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:
Sep. 11, 2012
Filed:
Jan. 13, 2010
Atsuhito Arai, Ehime, JP;
Hiroaki Sakata, Ehime, JP;
Kenichi Yoshioka, Ehime, JP;
Hiroshi Taiko, Ehime, JP;
Jiro Nakatani, Moriyama, JP;
Kotaro Ono, Moriyama, JP;
Michiya Ishikawa, Moriyama, JP;
Atsuhito Arai, Ehime, JP;
Hiroaki Sakata, Ehime, JP;
Kenichi Yoshioka, Ehime, JP;
Hiroshi Taiko, Ehime, JP;
Jiro Nakatani, Moriyama, JP;
Kotaro Ono, Moriyama, JP;
Michiya Ishikawa, Moriyama, JP;
Toray Industries, Inc., Tokyo, JP;
Abstract
Disclosed is a fiber-reinforced composite material that is high in heat resistance and strength while being low in the content of volatile matter that volatilizes during curing. Also disclosed are an epoxy resin composition for production thereof, and a prepreg produced from the epoxy resin composition. Specifically the invention provides an epoxy resin composition comprising: [A] an epoxy resin comprising two or more ring structures each consisting of four or more members, and at least one amine type or ether type glycidyl group directly connected to the ring structures, [B] a tri- or more-functional epoxy resin, and [C] a curing agent, and also provides a prepreg produced by impregnating reinforcing fiber with the epoxy resin composition and a fiber-reinforced composite material produced by curing the prepreg.