Preparation of carbon fibres

Details Preparation of carbon fibres Preparation of carbon fibres

1976-10-22

1978-03-14

Meros, Edward J.

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

4234472, 4234474, 264 292, 4234476, D01F 922

Patent

active

040791220

ABSTRACT:
A process for the production of carbon fibres is described in which a precursor fibre which is a copolymer of acrylonitrile, a chlorinated monomer, and itaconic acid containing between 2 to 20 molar parts of chlorinated comoner, between 0.5 and 5 molar parts of itaconic acid and 0 to 5 molar parts of other comonomers per 100 molar parts of acrylonitrile to a temperature in the range 200.degree.-400.degree. C while the natural shrinkage of the fibre is at least restrained followed by further heat treatment at a temperature in the range 800.degree.-3000.degree. C in a non-oxidizing atmosphere.

REFERENCES:
patent: 3933986 (1976-01-01), Matsumura et al.
patent: 3961888 (1976-06-01), Riggs
patent: 3993719 (1976-11-01), Matsumura et al.

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