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:
Mar. 11, 2014
Filed:
Dec. 12, 2007
Masayuki Kawazoe, Hiratsuka, JP;
Hiroyuki Okuhira, Hiratsuka, JP;
Koichiro Miyoshi, Hiratsuka, JP;
Tomohiro Ito, Hiratsuka, JP;
Takashi Kousaka, Hiratsuka, JP;
Mitsuhiro Iwata, Hiratsuka, JP;
Masayuki Kawazoe, Hiratsuka, JP;
Hiroyuki Okuhira, Hiratsuka, JP;
Koichiro Miyoshi, Hiratsuka, JP;
Tomohiro Ito, Hiratsuka, JP;
Takashi Kousaka, Hiratsuka, JP;
Mitsuhiro Iwata, Hiratsuka, JP;
The Yokohama Rubber Co., Ltd., Tokyo, JP;
Abstract
The present invention provides an epoxy resin composition for a fiber reinforced composite material comprising an epoxy resin (A) comprising an epoxy resin (a1) having a weight average molecular weight of up to 1,000 and an epoxy resin (a2) having a weight average molecular weight of 10,000 to 100,000 which contains at least 20% by weight of the basic skeleton of the epoxy resin (a1), a thermoplastic resin (B), and a curing agent (C). The cured composition has a co-continuous phase of the epoxy resin (A) and the thermoplastic resin (B) and/or a continuous phase of the thermoplastic resin (B). A cured product having a high toughness can be obtained from this epoxy resin composition.