Polyurethane foams blown only with water

Details Polyurethane foams blown only with water Polyurethane foams blown only with water

C - Chemistry, Metallurgy

08

G

403/47

C08G 18/48 (2006.01) C08G 18/66 (2006.01) C08J 9/12 (2006.01)

Patent

CA 2039217

POLYURETHANE FOAMS BLOWN ONLY WITH WATER Abstract of the Disclosure A novel polyurethane resin foam composition is provided which is only water-blown and requires no chlorofluorocarbon or other auxiliary blowing agents, yet suffers little or no degradation in physical properties even at reduced isocyanate indexes. The formulation includes a relatively low molecular weight polyethylene glycol along with the conventional polyol to make a blend for the polyol component. The molecular weight range of the polyethylene glycol is from about 200 to about 600. The lower molecular weight polyethylene glycol may range from about 2 to about 10 parts by weight of the polyol, based on the total polyurethane foam composition.

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