Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1996-07-03
1998-05-26
Gorr, Rachel
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
528 49, 528 53, 528 85, 521115, 564471, 564473, 564507, 564508, C08G 1818
Patent
active
057565589
ABSTRACT:
A method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of a blowing agent, a cell stabilizer and a catalyst composition comprising a compound having the following formula I: ##STR1## where R.sup.1 is hydrogen or a linear or branched C1-C4 alkyl or a C1-C4 hydroxyalkyl group;
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patent: 4210605 (1980-07-01), Hoshino
patent: 4338408 (1982-07-01), Zimmerman et al.
patent: 4433170 (1984-02-01), Zimmerman et al.
N. Malwitz, et al. "Amine Catalysts of Polyurethane Foam", Journal of Cellular Plastics, 23, pp. 461-502, 1987.
Carr Richard Van Court
Emerick James Stephen
Savoca Ann Coates Lescher
Underwood Richard Paul
Air Products and Chemicals Inc.
Gorr Rachel
Leach Michael
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