Preparation polyamides of isophthalic acid and hexamethylene dia

Details Preparation polyamides of isophthalic acid and hexamethylene dia Preparation polyamides of isophthalic acid and hexamethylene dia

1978-09-22

1980-08-26

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

528310, 528324, 528326, 528336, 528340, 528346, 528349, C08G 6928

Patent

active

042196361

ABSTRACT:
Processes for the production of polyamides wherein a salt of isophthalic acid and hexamethylene diamine are polycondensed in the presence of formic acid.

REFERENCES:
patent: 2715620 (1955-08-01), Carlston et al.
patent: 2742496 (1956-04-01), Lum et al.
patent: 3325342 (1967-06-01), Bonner
patent: 3379695 (1968-04-01), Wolfes et al.
patent: 3454536 (1969-07-01), Schade et al.

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