Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1978-10-12
1980-07-29
Lieberman, Allan
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260 291R, 260 292N, 260 302, 260 306R, 260 326N, 260 326NA, C08K 306, C08K 316, C08K 520, C08K 521
Patent
active
RE0303526
ABSTRACT:
Compositions or dopes comprising carbocyclic aromatic polyamides in suitable liquid media are prepared which are optically anisotropic (exhibit different light transmission properties in different directions in the dope). These dopes, and related isotropic dopes, are used in preparing fibers of unique internal structure (evidenced by low orientation angle and/or high sonic velocity) and exceptionally high tensile properties (e.g., initial modulus).
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E. I. Du Pont de Nemours and Company
Lieberman Allan
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