Preparation of spinnable polyamide from dinitrile/diamine/water

Details Preparation of spinnable polyamide from dinitrile/diamine/water Preparation of spinnable polyamide from dinitrile/diamine/water

1983-10-11

1984-12-25

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

528337, C08G 6928

Patent

active

044905211

ABSTRACT:
The process for manufacturing a spinnable polyamide from a dinitrile, a diamine, water and a catalyst is improved by using as a catalyst a metal salt of an oxygenated phosphorus compound. For example, high quality nylon-6,6 is manufactured by contacting adiponitrile, hexamethylene diamine, water and disodium phosphite at an elevated temperature and pressure.

REFERENCES:
patent: 2245129 (1941-06-01), Greenewalt
patent: 3847876 (1974-11-01), Onsager
patent: 4436898 (1984-03-01), Hofmann et al.

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