High-strength high-modulus polyacrylonitrile fibers, method for their production and use
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United States of America Patent
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May 8, 2001
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N/A
app pub date -
Jun 9, 1999
filing date -
Dec 11, 1996
priority date (Note) -
Expired
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Abstract
This invention describes high-strength fibers with high initial moduli from homopolymers or copolymers comprising at least 70% by weight repeating acrylonitrile and/or methacrylonitrile units, and a process especially adapted for their preparation, and their use, especially as reinforcing materials or for producing filters or friction coatings. The fibers according to the invention have a strength of more than 100 cN/tex and an initial modulus of more than 15 N/tex (based on 100% elongation).
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