Polyurethane foams from polyether polyols which contain amide gr

Details Polyurethane foams from polyether polyols which contain amide gr Polyurethane foams from polyether polyols which contain amide gr

1976-12-14

1978-07-11

Cockeram, H.S.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

260557R, 260558R, 260558A, 260561R, 528 60, 528 64, 528 78, C08G 1814, C08G 1850, C07C 9702, C07C10206

Patent

active

041001168

ABSTRACT:
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.

REFERENCES:
patent: 3574167 (1971-04-01), Case et al.
patent: 3833641 (1974-09-01), Papa et al.
patent: 3847992 (1974-11-01), Moss
patent: 3852350 (1974-12-01), Wilson et al.

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