Process for the manufacture of polyamide from diamine and diamid

Details Process for the manufacture of polyamide from diamine and diamid Process for the manufacture of polyamide from diamine and diamid

1985-12-16

1987-08-25

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

528313, 528337, C08G 6928

Patent

active

046893946

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

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

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