Melt-processable copolyamides having aromatic amide unit and fib

Details Melt-processable copolyamides having aromatic amide unit and fib Melt-processable copolyamides having aromatic amide unit and fib

1981-05-29

1983-05-24

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

528183, 528229, 528336, 528337, 528339, 528340, 528347, C08G 6932

Patent

active

043851703

ABSTRACT:
A melt-processable copolyamide prepared from diamines and dicarboxylic acids by a melt-polymerization process, wherein said copolyamide contains from about 1 to 20 mol % of an aromatic amide unit having the formula ##STR1## wherein X and Y are aromatic units with extended bonds, such as 1,4-phenylene group. This copolyamide provides fiber with higher stiffness.

REFERENCES:
patent: 3376270 (1968-04-01), Ridgway
patent: 3426001 (1969-02-01), Ridgway
patent: 3597400 (1971-08-01), Kashiro et al.
patent: 3645983 (1972-02-01), Ridgway
Man-made Fibers, Science and Technology, vol. 2, pp. 316-317.

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