Title:
FRP STRUCTURE BODY AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2000/048830
Kind Code:
A1
Abstract:
An FRP structure body having a plurality of sheets of core material laminated in a thickness direction and an FRP skin layer disposed on at least one side of the core material; an FRP structure body comprising a pair of spaced-apart sheets, at least one sheet containing FRP, and a seamless, enclosed hollow core material contained in the space; production methods for these FRP structure bodies; and a method of repairing an FRP structure body, wherein, when a portion not impregnated with resin is found on the surface of the body, the non-impregnated portion is entirely covered with a bag base material, the inside covered with the bag base material is vacuumized and resin is injected into the inside for impregnating into the non-resin-impregnated portion of a reinforcing fiber base material. A multiple-layer core structure allows an easy formation of a comparatively large FRP structure body having curved surfaces. An FRP structure body containing a seamless, enclosed hollow core material has lightweight and high-strength features and can be easily formed by a vacuum RTM method. The above repairing method permits an easy, low-cost repairing without sacrifice in strength to thereby reduce the production costs of an FRP structure body.
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Inventors:
SEKIDO TOSHIHIDE (JP)
KIMOTO YUKITANE (JP)
KONDO TOSHIYUKI (JP)
KIMOTO YUKITANE (JP)
KONDO TOSHIYUKI (JP)
Application Number:
PCT/JP2000/000838
Publication Date:
August 24, 2000
Filing Date:
February 15, 2000
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
SEKIDO TOSHIHIDE (JP)
KIMOTO YUKITANE (JP)
KONDO TOSHIYUKI (JP)
SEKIDO TOSHIHIDE (JP)
KIMOTO YUKITANE (JP)
KONDO TOSHIYUKI (JP)
International Classes:
B29C70/08; B29C70/44; B29C70/48; B29C70/54; B32B5/28; (IPC1-7): B32B5/28; B29C70/44; B29C70/48
Domestic Patent References:
| WO1998053982A1 | 1998-12-03 |
Foreign References:
| JPH07108529A | 1995-04-25 | |||
| JPH05185539A | 1993-07-27 | |||
| US4849147A | 1989-07-18 | |||
| JPH04179515A | 1992-06-26 | |||
| JPH04246510A | 1992-09-02 | |||
| JP2000079649A | 2000-03-21 | |||
| JPH11254566A | 1999-09-21 | |||
| JPH0535235U | 1993-05-14 | |||
| US5721034A | 1998-02-24 | |||
| JPS54100478A | 1979-08-08 | |||
| JP2000043172A | 2000-02-15 |
Attorney, Agent or Firm:
Ban, Toshimitsu (1-9 Nishishinjuku 8-chome Shinjuku-ku, Tokyo, JP)
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