Process for the production of polyurethanes using morpholine com

Details Process for the production of polyurethanes using morpholine com Process for the production of polyurethanes using morpholine com

1981-11-27

1983-04-12

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

528 53, C08G 1814

Patent

active

043798616

ABSTRACT:
The invention relates to a process for the preparation of foamed or unfoamed polyurethanes by the reaction of compounds with molecular weights of 400 to 10,000 having at least two isocyanate-reactive hydrogen atoms with polyisocyanates in the presence of catalysts containing tertiary amino groups and optionally in the presence of chain-lengthening agents of molecular weight 32 to 400, foam stabilizers, water and/or organic blowing agents and optionally other auxiliary agents and additives, characterized in that the catalysts are morpholine derivatives of the general formula ##STR1## wherein X is an integer from 3 to 6 and

REFERENCES:
patent: 3476933 (1969-11-01), Mendelsohn
patent: 3786005 (1974-01-01), Bechara et al.

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