Quaternary ammonium carboxylate inner salt compositions as contr

Details Quaternary ammonium carboxylate inner salt compositions as contr Quaternary ammonium carboxylate inner salt compositions as contr

1993-07-28

1994-02-22

Foelak, Morton

Organic compounds -- part of the class 532-570 series

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

521128, 521130, 521170, 521902, C07D25132

Patent

active

052888649

ABSTRACT:
A method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of a blowing agent, cell stabilizer and a catalyst composition which comprises a quaternary ammonium carboxylate inner salt having the following formula I ##STR1## where R.sub.1 -R.sub.3 are independently C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.8 cycloalkyl or a heterocycle, C.sub.6 -C.sub.10 aryl or heteroaromatic. R.sub.1 and R.sub.2 or R.sub.1 -R.sub.3 together with the nitrogen atom can also be part of nitrogen containing ring system such as piperidine, morpholine, triethylenediamine, imidazole, or 1,8-diazabicyclo-[5.4.0]undec-7-ene. R.sub.4 is a divalent R.sub.1.

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