Process for producing carbon fibers

Details Process for producing carbon fibers Process for producing carbon fibers

D - Textiles, Paper

01

F

18/6

D01F 9/14 (2006.01) D01D 4/02 (2006.01) D01F 9/00 (2006.01) D01F 9/145 (2006.01) D01F 9/32 (2006.01)

Patent

CA 1227005

ABSTRACT OF THE DISCLOSURE A process for producing filament yarns of high strength, high modulus carbon fibers having superior properties can be obtained from a pitch containing mesophase in an amount of 70% to 100% by using, in melt-spinning of the pitch, spinning nozzles having a cross-sectional area at the nozzle outlet part greater than the cross-sectional area of the narrowest part of the passage for spinning dope inside the nozzles, and subsequently thermosetting and then carbonizing the pitch.

462682

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