Process for preparing carbon fibers of high strength

Details Process for preparing carbon fibers of high strength Process for preparing carbon fibers of high strength

1987-02-09

1990-02-20

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526238, 526341, 526342, 528481, C08F 400, C08F 2044, C08F12044

Patent

active

049027620

ABSTRACT:
A process for preparing carbon fibers of high strength which includes the steps of homopolymerizing acrylonitrile or copolymerizing acrylonitrile with other vinyl monomers in a concentrated zinc chloride aqeuous solution containing 0.01-5% by weight of hydrogen chloride to form a polymeric solution which is spinned to form precursor filaments which are carbonized to provide carbon fibers.

REFERENCES:
patent: 2952651 (1960-09-01), Armen et al.
patent: 3479312 (1969-11-01), Grajii et al.
patent: 3632798 (1972-01-01), Morita et al.

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