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:
Aug. 29, 2017
Filed:
Mar. 24, 2014
Jx Nippon Oil & Energy Corporation, Tokyo, JP;
Fuji Jukogyo Kabushiki Kaisha, Tokyo, JP;
Yoshihiro Fukuda, Tokyo, JP;
Takayuki Matsumoto, Tokyo, JP;
Masaki Minami, Tokyo, JP;
Naoyuki Sekine, Tokyo, JP;
Masanori Nakajima, Tokyo, JP;
JX NIPPON OIL & ENERGY CORPORATION, Tokyo, JP;
FUJI JUKOGYO KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A prepregcomprises: a reinforcing fiber layerincluding reinforcing fibersand a resin compositionwith which the space between fibers of the reinforcing fibersis impregnated and which contains (A) a benzoxazine resin, (B) an epoxy resin, and (C) a curing agent having 2 or more phenolic hydroxy groups in a molecule; and a surface layerorprovided on at least one surface of the reinforcing fiber layerand containing (A) a benzoxazine resin, (B) an epoxy resin, (C) a curing agent having 2 or more phenolic hydroxy groups in a molecule, and (D) polyamide resin particleshaving an average particle size of 5 to 50 μm, wherein the polyamide resin particlesinclude a particle made of a polyamide