Process for preparing anisotropic oleum dopes of polyamides by p

Details Process for preparing anisotropic oleum dopes of polyamides by p Process for preparing anisotropic oleum dopes of polyamides by p

1978-04-07

1979-04-10

Schofer, Joseph L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

528348, C08K 536, C08G 5144

Patent

active

041487745

ABSTRACT:
Anisotropic dopes composed of an aromatic polyamide in oleum are produced by polymerizing an aromatic diamine such as p-phenylenediamine sulfate and an aromatic diacid such as terephthalic acid in sulfur trioxide.

REFERENCES:
patent: 3671542 (1972-06-01), Kivolek
patent: 3804791 (1974-04-01), Morgan
patent: 3827998 (1974-08-01), Morgan
patent: 3836498 (1974-09-01), Gutrick, Jr. et al.
patent: 3869419 (1975-03-01), Morgan et al.
Chemical Abstracts, vol. 73, 1970 -- 3627c.

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