Process for controlling the cross-sectional structure of mesopha

Details Process for controlling the cross-sectional structure of mesopha Process for controlling the cross-sectional structure of mesopha

1980-12-11

1983-03-15

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

264 292, 425461, D01D 104

Patent

active

043767478

ABSTRACT:
A mesophase pitch derived fiber having a predetermined cross-sectional structure is produced by passing mesophase pitch being spun into a pitch fiber through a porous body positioned in the spinnerette channel of a spinnerette.

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Applied Polymer Symposium, No. 29, pp. 161-173, (1976), "High Modulus Carbon Fibers from Pitch Precursors", J. B. Barr, S. Chwastiak, R. Didchenko, J. C. Lewis, R. T. Lewis and L. S. Singer.
Carbon, vol. 17, pp. 25-29, "Electron-Microscope Studies of Structural Heterogeneity in PAN-Based Carbon Fibres", S. C. Bennett and D. J. Johnson.
"Pack Filtration in Melt Polymer Spinning", by Mott Metallurgical Corporation.

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