Title:
PREPREG, FIBER-REINFORCED COMPOSITE MATERIAL AND MENDING AND REINFORCING METHOD OF CONCRETE STRUCTURE
Document Type and Number:
Japanese Patent JP3709616
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a prepreg which liberates no gas, when a moisture-curable resin composition is hardened, and is useful as a fiber-reinforced composite material or the like excellent in hardenability and mechanical properties because of a largely reduced amount of bubbles in the inside and surface of the hardened product.
SOLUTION: This prepreg is prepared by impregnating reinforcing fibers such as carbon fibers with a moisture-hardening resin composition which contains a reaction product between an epoxy resin having 1 or more hydrolyzable silyl group of the formula (X is a hydrolyzable group; (a) is 0-2; R' is an alkyl) and a silane compound having a functional group reactive with epoxy group in one molecule, gives a hardened product having a flexural modulus of ≥1.0Gpa at room temperature and a glass transition point of ≥30°C. When this resin composition is hardened, substantially no gas is liberated. In a preferred embodiment, this prepreg is applied to a concrete structure and hardened whereby the concrete structure is mended or reinforced.
Inventors:
Sawaoka Ryuji
Hiroki Oshido
Hiroki Oshido
Application Number:
JP20588996A
Publication Date:
October 26, 2005
Filing Date:
August 05, 1996
Export Citation:
Assignee:
TORAY INDUSTRIES,INC.
International Classes:
E04G23/02; B29B11/16; C08J5/24; D06M13/02; D06M13/224; D06M13/51; D06M13/513; D06M15/55; D06M17/00; D06M101/00; D06M101/40; (IPC1-7): B29B11/16; C08J5/24; E04G23/02
Domestic Patent References:
| JP7178728A | ||||
| JP8048883A | ||||
| JP7331014A | ||||
| JP56149439A | ||||
| JP7002582A | ||||
| JP7003163A |
Previous Patent: OPTICAL WAVEGUIDE TYPE DIFFRACTION GRATING, AND OPTICAL FIBER AMPLIFIER
Next Patent: FITTING CONSTRUCTION OF HEAT EXCHANGER
Next Patent: FITTING CONSTRUCTION OF HEAT EXCHANGER