Process for the manufacture of polyamide from diamines and diami

Details Process for the manufacture of polyamide from diamines and diami Process for the manufacture of polyamide from diamines and diami

1986-09-17

1988-01-12

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

528335, C08G 6928

Patent

active

047192852

ABSTRACT:
Nylon-type polyamides are produced from a diamine and a diamide in contact with a catalyst comprising a silicon compound. For example, high quality nylon-6,6 is manufactured by contacting hexamethylenediamine and adipamide in water with silica gel, at an elevated temperature and pressure.

REFERENCES:
patent: 4543407 (1985-09-01), Curatolo et al.

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