Production of carbon fibre

Details Production of carbon fibre Production of carbon fibre

1993-08-16

1994-08-23

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Filaments

264 296, 264169, 264211, 26421111, 26421116, 264DIG19, 4234474, 4234477, D01F 912

Patent

active

053405110

ABSTRACT:
A method of producing carbon fiber includes the steps of providing a solution of a coal-derived material in a solvent, typically dimethylformamide, adding polyethylene oxide having a molecular weight of at least 3.times.10.sup.6 daltons to the solution to provide a spinning solution, spinning the spinning solution into a fiber and causing the fiber to gel, typically by contacting it with a gelling solvent. The coal-derived material will have a composition, free of solvent, of 70 to 91 percent by mass of carbon, 2 to 6 percent by mass of hydrogen and 3 to 20 percent by mass of oxygen.

REFERENCES:
patent: 3461082 (1969-08-01), Otani
patent: 3723609 (1973-03-01), Mansmann et al.
patent: 3852428 (1974-12-01), Powell et al.
patent: 4250131 (1981-02-01), Sobel et al.
patent: 5120430 (1992-06-01), Morgan
Proceedings of the Fourth London International Carbon and Graphite Conference, Sep. 1974, M. A. A. Jorro, et al., "Carbon Fibre From Coal", pp. 287-303.

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