Highly-handleable pitch-based fibers

Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber

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264 292, 264176F, 264344, 4234471, 4234476, 428401, B32B 900, B29C 2500, D02G 300

Patent

active

041385250

ABSTRACT:
Fibers having a high degree of flexibility and handleability are produced by oxidizing fibers spun from a carbonaceous pitch which has been transformed, in part, to a liquid crystal or so-called "mesophase" state to an oxygen content of from 17 per cent by weight to 30 per cent by weight. Because of their strength and handleability, these highly-oxidized fibers can be easily processed at high speeds by means of conventional yarn-transport systems, and readily woven or knit into cloth. Such cloth may then be heat treated to produce carbon or graphite cloth.

REFERENCES:
patent: 3541582 (1970-11-01), Johnson et al.
patent: 3595946 (1971-07-01), Joo et al.
patent: 3629379 (1971-12-01), Otani
patent: 3702054 (1972-11-01), Araki et al.
patent: 3716607 (1973-02-01), Otani et al.
patent: 3787541 (1974-01-01), Grindstaff et al.
patent: 3919387 (1975-11-01), Singer
patent: 3943213 (1976-03-01), Whittaker
patent: 3974264 (1976-08-01), McHenry
patent: 4005183 (1977-01-01), Singer
patent: 4016247 (1977-04-01), Otani et al.
patent: 4032430 (1977-06-01), Lewis
Otani, S., "On the Carbon Fiber from the Molten Pyrolysis Products", Carbon, vol. 3, pp. 31-38, 1965.
Bacon, R., Pallozzi, A. A., Slosarik, S. E., "Carbon Fiber", Modern Plastics, pp. 608-610, 1966.

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