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

1993-01-08

1993-08-31

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521130, 521170, 521902, 544193, C08G 1816, C08J 912, C08J 914

Patent

active

052409708

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 piperdine, morpholine, triethylenediamine, imidazole, or 1,8-diazabicyclo-[5.4.0]-undec-7-ene. R.sub.4 is a divalent R.sub.1.

REFERENCES:
patent: 3127404 (1964-03-01), Mascioli
patent: 3193515 (1965-07-01), Mascioli
patent: 3862150 (1975-01-01), Bechara et al.
patent: 4040992 (1977-08-01), Beschara et al.
patent: 4086081 (1992-02-01), Savoca et al.
patent: 4111914 (1978-09-01), Krests et al.
patent: 4335219 (1982-06-01), Clarke et al.
patent: 4503226 (1985-03-01), Tang et al.
patent: 4542214 (1985-09-01), Bechara
patent: 4780485 (1988-10-01), Ashida
patent: 4904629 (1990-02-01), Galla et al.
Goldberg, Yuri, et al. "Betaines Derived from Amino and Hydrazino Acids As Phase Transfer Catalysts" Tetrahedron, vol. 46, No. 6.
Rahal, Said, and Leila Badache "An Anomalius Eschweiler-Clarke Reaction" Tetrahedron Letters, vol. 32, No. 31, pp. 3847-3848, 1991.
Kasai, Naoya, and Kazahiko Sakaguchi "An Efficient Synthesis of CrO-rarnitine" Tetrahedron Letters, vol. 33, No. 9, pp. 1211-1212, 1992.

Affiliated with

Also associated with

Rating

Quaternary ammonium carboxylate inner salt compositions as contr does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Quaternary ammonium carboxylate inner salt compositions as contr, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quaternary ammonium carboxylate inner salt compositions as contr will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2297755