Rigid polyurethane foam-forming compositions

Details Rigid polyurethane foam-forming compositions Rigid polyurethane foam-forming compositions

C - Chemistry, Metallurgy

08

K

403/18, 403/43

C08K 5/12 (2006.01) C08J 9/00 (2006.01) C08K 5/53 (2006.01)

Patent

CA 1109200

Abstract Advantageous rigid polyurethane roam properties (e.g. compressive strength) can be improved and the propor- tions or polymerization catalyst and/or surfactant needed to provide a given level or such properties can be lowered by preparing such foams from compositions comprising, in addition to the conventional foam-forming reactants inclu- ding polyisocyanate and polyol, from about 3% to about 10%, based on the weight of the polyol, of a plasticizer selected from essentially halogen-free phosphates and carboxylates containing at least one aryl radical, e.g. isodecyl diphenyl phosphate or butyl benzyl phthalate.

318560

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