Process for the production of polyurethanes

Details Process for the production of polyurethanes Process for the production of polyurethanes

1985-08-01

1987-02-17

Cockeram, Herbert S.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

528 53, 521128, C08G 1814, C08G 1818, C08G 1820

Patent

active

046440160

ABSTRACT:
Polyurethanes are made by reacting a polyisocyanate with a compound containing at least two isocyanate-reactive hydrogen atoms having a molecular weight of from 400 to 10,000 in the presence of a catalyst containing tertiary amino groups. The required catalyst corresponds to the formula ##STR1## in which R, R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6 and R.sup.7 represent a specified group or radical. A blowing agent and/or stabilizer and/or chain extending agent and/or other additives commonly used in the production of polyurethanes may optionally be included in the reaction mixture. The catalyst employed in the process is particularly advantageous in that it does not have a noticeable amine odor.

REFERENCES:
patent: 4048107 (1977-09-01), Babiec et al.
patent: 4101466 (1978-07-01), McEntire
patent: 4342841 (1982-08-01), Alberino et al.
Kuryla et al., Jour. Org. Chem. 29, 2773 (1964).
Kuryla, Jour. Org. Chem. 30, 3926 (1965).
Schroth et al., Synthesis 1982, 203, 206.
Arndt et al., Annalen 499, 268 (1932).
Angew. Chemie A 59 (1947), pp. 257-272.

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