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:
Jun. 11, 2019
Filed:
Oct. 28, 2014
Jxtg Nippon Oil & Energy Corporation, Tokyo, JP;
Subaru Corporation, Tokyo, JP;
Masaki Minami, Tokyo, JP;
Takayuki Matsumoto, Tokyo, JP;
Yoshihiro Fukuda, Tokyo, JP;
Naoyuki Sekine, Tokyo, JP;
Masanori Nakajima, Tokyo, JP;
JXTG NIPPON OIL & ENERGY CORPORATION, Tokyo, JP;
SUBARU CORPORATION, Tokyo, JP;
Abstract
A production method for a fiber-reinforced composite material comprises: a step of stacking a prepreg plurally to obtain a prepreg-stacked body; and a step of heating the prepreg-stacked body to cure a resin, wherein the prepreg comprises: a reinforcing fiber layer including reinforcing fibers and a resin composition with which the space between fibers of the reinforcing fibers is 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 layer provided on at least one surface of the reinforcing fiber layer and containing (A) to (C) components, and (D) polyamide resin particles having an average particle size of 5 to 50 μm.