Title:
CARBON FIBER, ACRYLIC FIBER, AND METHOD OF MANUFACTURING THEM
Document Type and Number:
WIPO Patent Application WO/1997/045576
Kind Code:
A1
Abstract:
Carbon fiber of which the tensile strength of resin-impregnated strand is high even when the thickness of each monofilament constituting the carbon fiber is large. This carbon fiber is characterized in that it comprises a plurality of monofilaments, and satisfies the relation 'sigma' 11.1 - 0.75 d, where d (unit: 'mu'm) represents an average diameter of the monofilaments; and 'sigma' (unit: GPa) the tensile strength of the resin-impregnated strand of the carbon fiber. This carbon fiber is preferably used as a material for forming energy-related equipment and parts, such as CNG tanks, flywheels, windmills and turbine blades, as a reinforcing material for structural equipment and parts, such as roads and bridges, and as a building and reinforcing material for a constructional material, such as lumbers and curtain walls.
Inventors:
MATSUHISA YOJI (JP)
KIBAYASHI MAKOTO (JP)
YAMASAKI KATSUMI (JP)
OKUDA AKIRA (JP)
KIBAYASHI MAKOTO (JP)
YAMASAKI KATSUMI (JP)
OKUDA AKIRA (JP)
Application Number:
PCT/JP1997/001716
Publication Date:
December 04, 1997
Filing Date:
May 22, 1997
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
MATSUHISA YOJI (JP)
KIBAYASHI MAKOTO (JP)
YAMASAKI KATSUMI (JP)
OKUDA AKIRA (JP)
MATSUHISA YOJI (JP)
KIBAYASHI MAKOTO (JP)
YAMASAKI KATSUMI (JP)
OKUDA AKIRA (JP)
International Classes:
D01F6/18; D01F9/22; D01F11/14; (IPC1-7): D01F9/22; D01F11/06; D01F6/18
Foreign References:
| JPH04333620A | 1992-11-20 | |||
| JPH026628A | 1990-01-10 | |||
| JPS61113828A | 1986-05-31 | |||
| JPH04245911A | 1992-09-02 | |||
| JPH0364514A | 1991-03-19 | |||
| JPS63203878A | 1988-08-23 | |||
| JPS6134228A | 1986-02-18 | |||
| JPH03174019A | 1991-07-29 | |||
| JPS5031128A | 1975-03-27 | |||
| JPH02242921A | 1990-09-27 |
Other References:
See also references of EP 0843033A4
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