Polyurethane catalyst compositions

Details Polyurethane catalyst compositions Polyurethane catalyst compositions

C - Chemistry, Metallurgy

08

G

402/131, 252/41

C08G 18/24 (2006.01) C08G 18/10 (2006.01) C08G 18/22 (2006.01) C08G 18/26 (2006.01) C08G 18/76 (2006.01)

Patent

CA 1230324

1109-7349 ABSTRACT OF THE DISCLOSURE A highly reactive, rapidly curable polyurethane com- position is described which contains a mixture of prepolymer of a poly aliphatic isocyanate compound, generally of the formula in which R and R' are aliphatic groups and X is a bridging group; and a polyhydroxy compound, together with a catalyst composition comprising lead naphthenate and a dialkyltin dicarboxylate of the formula: Image in which R is C1 - C8 alkyl, and R1 is C1 to C18 alkyl. These compositions exhibit sufficiently rapid cure-rates to permit their use as injection moulding compositions. In a preferred embodiment, new and improved integral skin foam polyurethane compositions are provided, which may also be injection molded to form integral skin foam core shaped articles having improved colorability and ultra violet light resistance.

471315

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