Method for preparing an improved pitch impregnant for a carbon-c

Details Method for preparing an improved pitch impregnant for a carbon-c Method for preparing an improved pitch impregnant for a carbon-c

1984-02-13

1985-11-19

Lieberman, Paul

Compositions: coating or plastic

Coating or plastic compositions

Bituminous material or tarry residue

106273R, 427249, 427227, 428408, C08L 9500

Patent

active

045540241

ABSTRACT:
A pitch fraction for impregnating a carbon fiber reinforcing structure which represents the portion of a pitch which is insoluble in cyclohexane and soluble in pyridine.
Also provided is a carbon fiber-reinforced carbon-carbon composite made by impregnating a multidirectional carbon fiber reinforcing structure with the above-described pitch fraction, carbonizing the pitch and graphitizing the resulting structure.

REFERENCES:
patent: 3382084 (1968-05-01), Folkins et al.
patent: 4131708 (1978-12-01), Moores et al.
patent: 4201611 (1980-05-01), Stover
patent: 4318824 (1982-05-01), Turner

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