Polyol and utilization thereof

Details Polyol and utilization thereof Polyol and utilization thereof

C - Chemistry, Metallurgy

08

G

400/102, 402/147

C08G 18/54 (2006.01) C08G 8/28 (2006.01) C08G 12/40 (2006.01) C08J 9/00 (2006.01)

Patent

CA 2028795

A b s t r a c t The present invention relates to a polyol, polyurethane resin, rigid polyurethane foam, preparation process thereof and a preparation process of a rigid polyurethane foam composite. The polyol used in the present invention comprises a phenol resin base polyol mixed with an aminophenol base polyol or a polyphenylpolyxylylenepolyamine base polyol or a polymethylene- polyphenylpolyamine base polyol. The above polyurethane resin, foam and composite have resistance to dissolution in a hydrochlorofluorocarbons and a hydrofluorocarbons which are foaming agents having very low public hagard. The above-mentioned foams have excellent physical properties equivalent to those of conventional polyurethane foams obtained by using chlorofluorocarbons, and hence are very useful as a thermal insulation material or a thermal insulation structure for refrigerators, freezers, insulation panels, ships or vehicles.

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