Sprayable autofrothing polyisocyanate foam and delivery system

Details Sprayable autofrothing polyisocyanate foam and delivery system Sprayable autofrothing polyisocyanate foam and delivery system

C - Chemistry, Metallurgy

08

J

C08J 9/14 (2006.01) C08G 18/32 (2006.01) C08G 18/48 (2006.01)

Patent

CA 2363970

A formulated resin composition for producing a closed cell rigid polyisocyanate based foam is disclosed. The formulated resin composition for use in a polyurethane froth spraying system includes a hydrofluorocarbon blowing agent, a Mannich polyol, at least one additional polyol, a catalyst system, and a surfactant. The formulated resin composition has a hydroxyl content of at least 400 mg KOH/g and a polyurethane foam produced utilizing the formulated resin composition has a closed cell content of at least 90 percent. The formulated resin composition exhibits a zero ozone depleting potential and produces a polyurethane foam that cures faster than conventional sprayed polyurethane foams.

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