Process for making polytetramethylene adipamide

Details Process for making polytetramethylene adipamide Process for making polytetramethylene adipamide

1982-10-13

1984-07-31

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

C08G 6928

Patent

active

044631669

ABSTRACT:
A process for preparing a white nylon-4,6 polyamide in an non-aqueous inert polar solvent at atmospheric or only slightly above atmospheric pressure at a temperature of about 150.degree. C. to about 300.degree. C. Higher molecular weight polyamides may be obtained following after-condensation.

REFERENCES:
patent: 2163636 (1939-06-01), Spanagel
patent: 3932364 (1976-01-01), Yamazaki et al.
Synthetic Fibre Developments in Germany, Part II, Schlack et al., Jul. 1945.
Gaymans et al., "Preparation of Some Properties of Nylon 46", 15 J. Polymer Science, pp. 537, 545, (1977).

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