Poly-n,n-hydroxyalkylamides of polybasic carboxylic acids...

Details Poly-n,n-hydroxyalkylamides of polybasic carboxylic acids... Poly-n,n-hydroxyalkylamides of polybasic carboxylic acids...

C - Chemistry, Metallurgy

08

J

403/9

C08J 9/06 (2006.01) C07C 235/08 (2006.01) C07D 307/24 (2006.01) C08G 18/38 (2006.01)

Patent

CA 1214900

POLY-N,N-HYDROXYALKYLAMIDES OF POLYBASIC CARBOXYLIC ACIDS AND A PROCESS FOR THE PRODUCTION THEREOF ABSTRACT OF THE DISCLOSURE A polycarboxylic acid alkyl or aryl ester corres- ponding to the formula Image is reacted with a dialkanolamine corresponding to the formula Image at a temperature from 50 to 200°C. The alcohol ROH formed during this reaction is removed from the re- action mixture and the product recovered corresponds to the formula Image in which the radicals n, X, A and R are as defined herein. The thus-produced poly-N,N-hydroxyalkylamides are particularly useful as cell-opening materials in the production of elastic polyurethane foams.

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