Preparation of polyamide from arylene cyclic diamide

Details Preparation of polyamide from arylene cyclic diamide Preparation of polyamide from arylene cyclic diamide

1992-06-11

1994-01-04

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

4284744, 528322, 528335, 528338, 528339, 528340, 528344, 528347, 528367, 540 1, C08G 6900

Patent

active

052761312

ABSTRACT:
This invention relates to cyclic diamides that are readily polymerized to form poly(terephthalamides). The resulting poly(terephthalamides) have high crystallinity, high temperature capabilities, dimensional stability, low moisture sensitivity, and solvent and chemical resistance.

REFERENCES:
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patent: 3696074 (1972-10-01), Tsuda et al.
patent: 3917561 (1975-11-01), Chapman et al.
patent: 4400490 (1983-08-01), Yang
patent: 4863991 (1989-09-01), Poppe et al.
patent: 5079339 (1992-01-01), Akkapeddi et al.
"On Understandin Macrocyclic Ring Systems" Stetter et al., Chem. Berichte, 91, pp. 1775-1781 (1958).
"Preparation and Polymerization of Bisphenol A Cyclic Oligomeric Carbonates" Brunelle et al., Macromolecules, 1991, pp. 3035-3044.

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