Process for producing froth polyurethane foam

Details Process for producing froth polyurethane foam Process for producing froth polyurethane foam

C - Chemistry, Metallurgy

08

J

C08J 9/30 (2006.01) B29B 7/88 (2006.01) B29C 44/06 (2006.01) C08J 9/12 (2006.01) C08J 9/36 (2006.01)

Patent

CA 2183915

High quality, consistent polyurethane froth foams, both filled and unfilled, are prepared by direct- ing polyol, isocyanate, and optionally other polyuretha- ne-forming ingredients to a high pressure mix head prior to introducing the mixture to a froth foaming head. Changes in stoichiometry may be made rapidly without shut-down. An in-line blender incorporated filler into the polyol stream minimizing density differentials normally encountered in the holding tank, maintaining low and reproducible viscosity, and allowing for greater amounts of filler than otherwise possible.

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