EP 0787165 A2 19970806 - A PROCESS FOR PREPARING POLYURETHANE FOAM IN THE PRESENCE OF A HYDROCARBON BLOWING AGENT
Title (en)
A PROCESS FOR PREPARING POLYURETHANE FOAM IN THE PRESENCE OF A HYDROCARBON BLOWING AGENT
Title (de)
VERFAHREN ZUR HERSTELLUNG VON POLYURETHANSCHAUMSTOFF IN ANWESENHEIT VOR KOHLENWASSERSTOFFTREIBMITTEL
Title (fr)
PROCEDE DE PREPARATION DE MOUSSE DE POLYURETHANE EN PRESENCE D'UN HYDROCARBURE SERVANT D'AGENT GONFLANT
Publication
Application
Priority
- US 9513313 W 19951019
- US 32643094 A 19941020
- US 52980095 A 19950918
Abstract (en)
[origin: WO9612759A2] Disclosed is a process for preparing a rigid, hydrocarbon-blown, polyurethane foam by reacting a polyisocyanate with a polyurethane precursor composition comprising a polyol and a compatibilizing agent containing a compatibilizing radical of the formula: -(CnH2n+1) wherein n is a number greater than or equal to 5, and wherein the compatibilizing agent contains at least one active hydrogen atom, provided that there is no more than one aromatic group per molecule, and further wherein the compatibilizing agent is a fat, oil, monoglyceride, diglyceride, fatty acid, fatty alcohol, fatty amide, fatty amine, fatty acid ester, alkoxylated adduct of any of the foregoing, alkyl phenol or propoxylated adduct thereof, alkyl phenol or adduct thereof with ethylene oxide and propylene oxide, alkyl phenol or adduct thereof with less than an average of four molecules of ethylene oxide per molecule of alkyl phenol or a mixture thereof. A preferred compatibilizing agent is castor oil. The compatibilizing agent enhances the miscibility of the hydrocarbon blowing agent. Advantageously, the polyurethane precursor compositions exhibit improved storage stability.
IPC 1-7
IPC 8 full level
C08G 18/00 (2006.01); C08G 18/28 (2006.01); C08G 18/66 (2006.01); C08J 9/14 (2006.01); C08G 101/00 (2006.01)
CPC (source: EP)
C08G 18/2835 (2013.01); C08G 18/6629 (2013.01); C08G 18/6696 (2013.01); C08J 9/141 (2013.01); C08G 2110/0025 (2021.01); C08G 2110/005 (2021.01); C08J 2375/04 (2013.01)
Citation (search report)
See references of WO 9612759A2
Designated contracting state (EPC)
AT BE DE DK ES FR GB GR IE IT LU NL SE
DOCDB simple family (publication)
WO 9612759 A2 19960502; WO 9612759 A3 19960704; AU 3833795 A 19960515; BR 9509500 A 19971014; CA 2201586 A1 19960502; CN 1068016 C 20010704; CN 1161705 A 19971008; CZ 119297 A3 19970813; EP 0787165 A2 19970806; HU T77801 A 19980828; JP H11500467 A 19990112; MX 9702869 A 19970731; PL 319832 A1 19970901
DOCDB simple family (application)
US 9513313 W 19951019; AU 3833795 A 19951019; BR 9509500 A 19951019; CA 2201586 A 19951019; CN 95195788 A 19951019; CZ 119297 A 19951019; EP 95936350 A 19951019; HU 9800905 A 19951019; JP 51403296 A 19951019; MX 9702869 A 19951019; PL 31983295 A 19951019