Pre-reacted isocyanate product

Details Pre-reacted isocyanate product Pre-reacted isocyanate product

C - Chemistry, Metallurgy

08

G

C08G 18/76 (2006.01) C08G 18/10 (2006.01) C08G 18/48 (2006.01) C08J 9/12 (2006.01)

Patent

CA 2669439

A foam material is made through a spray process by combining a polyol with a pre-reacted isocyanate. The pre-reacted isocyanate contains an isocyanate pre-reacted with a prefoaming agent, such as a second polyol. The second polyol might be the same or different than the first polyol. Once combined in the presence of a blowing agent, the polyol and the pre-reacted isocyanate form a foam material, such as a polyurethane foam. The foam material is particularly well suited for insulating surfaces. In one embodiment, for instance, the foam is formed and applied on site.

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