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:
May. 04, 2010
Filed:
Jun. 06, 2007
Shinji Kouchi, Ehime, JP;
Mariko Ishikawa, Kyoto, JP;
Hiroki Oosedo, Ehime, JP;
Go Tanaka, Ehime, JP;
Toshiya Kamae, Ehime, JP;
Shinji Kouchi, Ehime, JP;
Mariko Ishikawa, Kyoto, JP;
Hiroki Oosedo, Ehime, JP;
Go Tanaka, Ehime, JP;
Toshiya Kamae, Ehime, JP;
Toray Industries, Inc., Chuo-ku, Tokyo, JP;
Abstract
An embodiment of the invention relates to an epoxy resin composition for fiber reinforced composite material having an epoxy resin that is liquid at room temperature (component 1), aromatic polyamine that is liquid at room temperature (component 2) and diaminodiphenylsulfone (component 3). The proportion of component (1) relative to the entire epoxy resin in the composition is 60-100 wt %. The sum of the proportions of components (2) and (3) relative to the entire polyamine in the composition is 70-100 wt %. The proportion of component (3) relative to the entire polyamine in the composition is 25-60 wt %. The stoichiometric ratio of the entire polyamine to the entire epoxy resin in the composition is 0.7-1.3. Additional embodiments of the invention relate to other aspects of the invention.