Anisotropic dopes of aromatic polyamides

Details Anisotropic dopes of aromatic polyamides Anisotropic dopes of aromatic polyamides

1975-07-08

1977-04-19

Wong, Jr., Harry

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 302, 260 308R, 260 324, 260 326NT, 260 78R, 260 78A, C08K 316, C08K 520, C08K 521, C08K 536

Patent

active

040187357

ABSTRACT:
An anisotropic aromatic polyamide dope comprising more than 10% by weight of an aromatic polyamide and a solvent for the polyamide, said polyamide consisting essentially of, at least 5 mole% but less than 35 moles%, based on its entire units, of an only partially p-oriented structural unit expressed by the following formula ##STR1## wherein Ar.sup.1 is a divalent aromatic ring whose chain-extending bonds are coaxial or parallel, X is a member selected from the group consisting of O, S and NH, and the NH group bonded to the benzene ring of the above benzoxazole, benzothiazole or benzimidazole ring is meta or para to the carbon atom of said benzene ring.

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Horikawa et al., Chem. Abs., 68, (1968), p. 59964z.
Rabilloud et al., Chem. Abs., 69, (1968), p. 87773a.

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