Preparation of polyamides from omega-aminonitriles

Details Preparation of polyamides from omega-aminonitriles Preparation of polyamides from omega-aminonitriles

1990-10-04

1992-04-28

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

528310, C08G 6900

Patent

active

051091046

ABSTRACT:
High quality polyamides are prepared from a mixture of an omega-aminonitrile, an oxygenated phosphorous catalyst, and water. When the reactor temperature reaches about 200 degrees to about 260 degrees C. continuously adding water, and continuously removing water vapor and ammonia until 15 to 75 grams of water have been added per 100 grams of omega-aminonitile, and then stopping the water addition and continuing the reaction until a high molecular weight polyamide is obtained.

REFERENCES:
patent: 4568736 (1986-02-01), Curatolo et al.

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