Preparation of polyamides from omega-aminonitriles

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

C - Chemistry, Metallurgy

08

G

C08G 69/00 (2006.01) C08G 69/04 (2006.01) C08G 69/16 (2006.01)

Patent

CA 2052211

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- aminonitrile, and then stopping the water addition and continuing the reaction until a high molecular weight polyamide is obtained.

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