Authors

Danny D. Edie

Document Type

Patent

Publication Date

10-13-1992

Patent Number

patent number 5154908

Abstract

Carbon fibers having a multi-lobal transverse cross-section are produced by extruding a carbonaceous anisotropic liquid precursor through a spinneret having a capillary with a multi-lobal cross-section, solidifying the extruded filament, rendering the filament infusible, and heating the filament in an inert environment at a temperature sufficient to substantially increase the tensile strength and modulus of elasticity of the filament.

Application Number

06/775131

Assignees

Clemson University (Clemson, SC)

Filing Date

1985-09-12

Primary/U.S. Class

423/447.1

Other/U.S. Class

264/29.2, 423/447.2, 423/447.4, 423/447.6

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