Method of making small diameter high strength carbon fibers
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United States of America Patent
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Dec 8, 1992
Issued Date -
N/A
app pub date -
Oct 31, 1990
filing date -
Feb 16, 1989
priority date (Note) -
Expired
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Abstract
Small diameter high strength carbon fibers are produced in a process in which the spinneret has a small diameter, the spinneret capillary temperature is at least 10.degree. C. higher than the predicted spin temperature of the pitch and the pitch flows through a high aspect ratio opening upstream of the spinneret.
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