Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1997-11-04
2000-03-28
Gorr, Rachel
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
521155, C08G 1802
Patent
active
060432926
ABSTRACT:
Process for preparing rigid and flexible polyurethane foams by reacting a polyisocyanate and a polyol in the presence of water and CO.sub.2. The foams obtained do not show a major glass transition temperature between -100.degree. C. and +25.degree. C. and have improved air flow properties.
REFERENCES:
patent: 3184419 (1965-05-01), Merriman
patent: 5770635 (1998-06-01), Lee et al.
Huygens Eric
Leenslag Jan Willem
Gorr Rachel
Imperial Chemical Industries plc
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