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US 6,592,987 B1Granted
Wholly aromatic synthetic fiber produced by liquid-crystal spinning, process for producing the same, and use thereof
AssigneeE. I. du Pont de Namours and Company
InventorsShiro Sakamoto, Hiroyuki Suzuki
Life of this patent
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Abstract
Wholly aromatic synthetic fibers spun from liquid-crystalline polymer solutions, having a crystal size (110 plane) of not greater than 50 Å and an ionic substance content of no more than 1.0 wt % are disclosed. Said fibers having a low ionic substance content while retaining the inherent high heat resistance and high Young's modulus, and are useful particularly for electrical and electronic parts.
Claims10
Wholly aromatic synthetic fibers spun from liquid-crystalline polymer solutions, characterized by having a crystal size (110 plane) of 50Å or less and an ionic substance content of 1.0 wt % or less.
Dependencies are inferred from the claim text.