Fine carbon fiber, fine short carbon fiber, and manufacturing method for said fibers
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United States of America Patent
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Aug 11, 2015
Grant Date -
Nov 6, 2014
app pub date -
Jul 22, 2014
filing date -
Mar 6, 2008
priority date (Note) -
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Abstract
A novel fine carbon fiber produced by vapor growth, in which a graphite-net plane consisting of carbon atoms alone forms a temple-bell-shaped structural unit including a closed head-top part and a body-part with an open lower-end, in which an angle θ formed by a generatrix of the body-part and a fiber axis is less than 15°, 2 to 30 of the temple-bell-shaped structural units are stacked sharing a central axis to form an aggregate, and the aggregates are connected head-to-tail with a distance to form a fiber. Fine short carbon fibers with excellent dispersibility can be obtained by shortening the fine carbon fiber.
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