Process for manufacturing pitch-type carbon fiber

Details Process for manufacturing pitch-type carbon fiber Process for manufacturing pitch-type carbon fiber

1998-04-23

1999-10-19

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

D01D 400, D01F 912

Patent

active

059684356

ABSTRACT:
In a step of spinning a molten mesophase pitch in a process for manufacturing a pitch-type carbon fiber, the pitch is allowed to pass through an orifice and to be contracted once, is then expanded in an introduction port with a diameter greater than that of the orifice, and is then allowed to pass through an outlet pore formed at a collecting portion to spin the pitch. The pitch-type carbon fiber has a high elastic modulus in tension and high compressive strength.

REFERENCES:
patent: 4818612 (1989-04-01), Hara et al.
patent: 4923648 (1990-05-01), Hara et al.
patent: 5169584 (1992-12-01), Ross et al.

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