Homogenous hexamethylenediamine/adipic acid/dimer acid copolyami

Details Homogenous hexamethylenediamine/adipic acid/dimer acid copolyami Homogenous hexamethylenediamine/adipic acid/dimer acid copolyami

1987-07-08

1989-05-02

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

528336, 528338, 528340, C08G 6926

Patent

active

048269514

ABSTRACT:
Homogeneous copolyamides having high melting points and good flexibility, well adapted for the production of textile materials and plastic shaped articles, are prepared by prepolymerizing lower dicarboxylic acid(s) with an excess of hexamethylenediamine in the presence of a catalytically effective amount of a strong inorganic or organic oxyacid, or alkali or alkaline earth metal salt thereof, and thence polycondensing the resulting prepolymer with a fatty acid dimer.

REFERENCES:
patent: 4384111 (1983-05-01), Goletto et al.
patent: 4680379 (1987-07-01), Coquard et al.

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