Process for preparing wholly aromatic polyamides by mixing solid

Details Process for preparing wholly aromatic polyamides by mixing solid Process for preparing wholly aromatic polyamides by mixing solid

1976-01-14

1977-11-08

Anderson, Harold D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 47CZ, 260 63N, 260 78UA, C08G 6932

Patent

active

040575365

ABSTRACT:
An improved process is provided for preparing wholly aromatic polyamides from solid monomers; particularly, aromatic diamines and aromatic dicarboxylic acid halides. The solid monomers in particulate form are first mixed in the substantial absence of oxygen and in the absence of a solvent or diluent to prepare a uniform monomer mixture having a desired stoichiometry prior to the initiation of the polymerization reaction. The uniform monomer mixture is thereafter polymerized in the presence of an appropriate solvent as herein defined.

REFERENCES:
patent: 3063966 (1962-11-01), Kwolek et al.

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