Process for production of carbon fiber

Chemistry of inorganic compounds – Carbon or compound thereof – Elemental carbon

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264 292, 264DIG19, 526 22, 4234474, C01B 3102

Patent

active

040704467

ABSTRACT:
A process for the production of carbon fiber, which comprises sulfonating polyethylene fiber with chlorosulfonic acid, sulfuric acid, fuming sulfuric acid or a mixture of two or more kinds thereof and carbonizing the resulting precursor fiber by heating at a temperature of 600.degree. to 3,000.degree. C, optionally while giving a tension to the fiber.

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