Multifibrous carbon fiber and utilization thereof
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United States of America Patent
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Dec 9, 2003
Grant Date -
Dec 13, 2001
app pub date -
Jan 22, 2001
filing date -
Jan 21, 2000
priority date (Note) -
Expired
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Abstract
Carbon fiber including graphitized fiber is processed electrochemically in an acidic solution for a time sufficient to run a layer reaction such that the reaction extends to the inside of the fiber and thereafter, as required, heat-treated accurately at 100.degree. C. or more to expand layer spacing to form multifibrous carbon fiber, with which hydrogen is brought into contact, adsorbing hydrogen in the inside of the multifibrous carbon fiber.
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