Process for the manufacture of spinnable polyamides utilizing a

Details Process for the manufacture of spinnable polyamides utilizing a Process for the manufacture of spinnable polyamides utilizing a

1985-01-10

1986-07-29

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

528312, 528313, 528319, 528335, C08G 6928

Patent

active

046031928

ABSTRACT:
The process for manufacturing a nylon-type polyamide from a dinitrile, a diamine and water in the presence of a catalyst is improved by using as a catalyst an oxygenated phosphorus compound and an oxygenated boron compound. For example, high quality nylon-6,6 is manufactured by contacting adiponitrile, hexamethylene diamine and water with boric acid and phosphorous acid at an elevated temperature and pressure.

REFERENCES:
patent: 4436898 (1984-03-01), Hofmann et al.

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