Polyurethane foams from polyether polyols which contain amide groups

摘要

The instant invention relates to hydroxyl polyethers which are modified with amide groups and a method of their manufacture. The method includes a first stage wherein a portion of the hydroxyl groups of a polyether polyol are aminated and a second stage wherein the amine groups are reacted with a carboxylic acid, its anhydride, ester or halide. The modified polyesters may be used for the production of polyurethane resins.