High molecular weight polyamines and their use in preparation of

Details High molecular weight polyamines and their use in preparation of High molecular weight polyamines and their use in preparation of

1979-01-02

1980-09-23

Cockeram, H. S.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521164, 528 60, 528 61, 528 62, 528 64, 528 73, 26032625, 544401, 546188, 560 25, 560115, 560158, C08G 1832, C08G 1814, C07D27301

Patent

active

042244170

ABSTRACT:
The invention relates to new polyamines, preferably containing polyether segments, a process for their preparation and their use as starting components for the production of polyurethane resins. The process involves producing ketimines, aldimines or enamines containing hydroxyl groups by reacting a hydroxyl amine with an aldehyde or ketone and removing the water by product. The ketimine, aldimine, or enamine is then reacted with an NCO prepolymer wherein the hydroxyl group of the material reacts with the isocyanate group without disturbing the blocked amine. This polyaddition product is then hydrolyzed to unblock the high molecular weight polyamine.

REFERENCES:
patent: 3635908 (1972-01-01), Vogt et al.
patent: 3932357 (1976-01-01), Schmitt et al.
patent: 3941753 (1976-03-01), Brinkmann et al.
patent: 4108842 (1978-08-01), Konig et al.
patent: 4150213 (1979-04-01), Hocker et al.

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