Aromatic copolyamide from naphthalene dicarboxylic acids

Details Aromatic copolyamide from naphthalene dicarboxylic acids Aromatic copolyamide from naphthalene dicarboxylic acids

1992-04-17

1993-08-10

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

528183, 528193, 528229, 528337, 528338, 528339, 528340, C08G 6926

Patent

active

052350304

ABSTRACT:
Linear aromatic copolyamides having good processability, superior thermal stability and excellent mechanical properties are provided. They comprise 55-90 mole % of a repearing unit of ##STR1## and 45-10 mole % of a repeating unit of ##STR2## wherein R.sub.1 and R.sub.2 each is a C.sub.4-12 aliphatic alkylene.

REFERENCES:
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patent: 4042571 (1977-08-01), Kawase et al.
patent: 4640973 (1987-02-01), Davis et al.
patent: 5102982 (1992-04-01), Koide
Ridway, James S., Structure-Property Relationships of Ring-Containing Nylon 66 Copolyamides. Journal of Polymer Science: Part A-1, vol. 8 3089-3111 (1970).

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