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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.:

US 9683072 B1

PDFFull Text
Date of Patent:
Jun. 20, 2017

Filed:

Oct. 31, 2013

Epoxy resin composition, prepreg, and carbon-fiber-reinforced composite material

Applicant:

Toray Industries, Inc., Tokyo, JP;

Inventors:

Jun Misumi, Iyo-gun, JP;

Nobuyuki Arai, Iyo-gun, JP;

Hiroshi Taiko, Otsu, JP;

Shizue Ueno, Iyo-gun, JP;

Assignee:

TORAY INDUSTRIES, INC., Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Michael J Feely

Int. Cl.
CPC ...
B32B 27/04 (2006.01); B32B 27/12 (2006.01); B32B 27/18 (2006.01); B32B 27/38 (2006.01); C08G 59/32 (2006.01); C08G 59/38 (2006.01); C08G 59/50 (2006.01); C08L 63/00 (2006.01); C08G 59/28 (2006.01); C08G 59/22 (2006.01); C08G 59/24 (2006.01); C08J 5/04 (2006.01); C08J 5/24 (2006.01); C08G 59/10 (2006.01); C08G 59/54 (2006.01);
U.S. Cl.
CPC ...
C08G 59/28 (2013.01); C08G 59/10 (2013.01); C08G 59/226 (2013.01); C08G 59/245 (2013.01); C08G 59/38 (2013.01); C08G 59/504 (2013.01); C08G 59/5033 (2013.01); C08G 59/54 (2013.01); C08J 5/042 (2013.01); C08J 5/24 (2013.01); C08L 63/00 (2013.01); C08J 2363/00 (2013.01); C08J 2363/02 (2013.01);
Abstract

Provided are: an epoxy resin composition which enables the production of a carbon-fiber-reinforced composite material having excellent tensile strength and compressive strength and suitable as a material for structures; a prepreg; and a carbon-fiber-reinforced composite material. An epoxy resin composition characterized by comprising at least [A] an epoxy resin having a structure represented by formula (1), [B] an epoxy resin having at least one amine-type glycidyl group or at least one ether-type glycidyl group and having a liquid form at 40° C. and [C] a curing agent; and a prepreg and a carbon-fiber-reinforced composite material, each produced using the epoxy resin composition. (In the formula, Rto Rindependently represent at least one atom or group selected from the group consisting of a hydrogen atom, an aliphatic hydrocarbon group having 1 to 4 carbon atoms, an alicyclic hydrocarbon group having 4 or less carbon atoms, and a halogen atom.)

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