Carbon fiber

Details Carbon fiber Carbon fiber

2008-07-02

2009-12-29

Hendrickson, Stuart (Department: 1793)

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

C423S447100

Reexamination Certificate

active

07638110

ABSTRACT:
According to the present invention, there is disclosed a carbon fiber having a strand tensile strength of 6,100 MPa or more, a strand tensile modulus of 340 GPa or more and a density of 1.76 g/cm3or more and possessing, on the surface, striations oriented in a direction parallel to the fiber axis, wherein the distance between striations in a 2×2 μm area of the carbon fiber surface when observed by a scanning probe microscope is 0.1 to 0.3 μm, the root mean square surface roughness Rms (5 μm) in a 5×5 μm area of the carbon fiber surface when observed by a scanning probe microscope is 20 to 40 nm, and the root mean square surface roughness Rms (0.5 μm) when measured in a 0.5×0.5 μm area is 2 to 12 nm.

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English Language Abstract to JP 2001-131833.
English Language Abstract to JP 2003-073932.
English Language Abstract to JP 2001-131833, published May 15, 2001.
English Language Abstract to JP 2003-073932, published Mar. 12, 2003.

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