Fiber of wholly aromatic copolyamide from 2,6-naphthalene dicarb

Details Fiber of wholly aromatic copolyamide from 2,6-naphthalene dicarb Fiber of wholly aromatic copolyamide from 2,6-naphthalene dicarb

1990-10-26

1993-01-05

Anderson, Harold D.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528190, 528338, 528339, 528340, 528344, 528348, C08G 6932

Patent

active

051771756

ABSTRACT:
A wholly aromatic copolymer and a shaped article thereof having an excellent mechanical property, high resistances to heat and chemicals, and a satisfactory processability, is composed of (1) an aromatic dicarbonyl moiety consisting of recurring dicarbonyl units (A) and (B): ##STR1## and (2) an aromatic diamine moiety consisting of recurring diamine units (C) and (D): ##STR2## and the recurring dicarbonyl units (B) being in an amount of 0.01 molar % or more but less than 20 molar % based on the total molar amount of the dicarbonyl moiety (1), and the recurring diamine units (D) being in an amount of 60 molar % or less but more than 20 molar % based on the total molar amount of the diamine moiety (2).

REFERENCES:
patent: 4075172 (1978-02-01), Ozawa et al.
patent: 4355151 (1982-10-01), Shimada et al.

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