C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 71/00 (2006.01) C08G 18/32 (2006.01) C08G 18/50 (2006.01) C08G 18/54 (2006.01) C08J 9/14 (2006.01) C08J 9/30 (2006.01) C08K 3/24 (2006.01) C08K 5/06 (2006.01) C08K 5/17 (2006.01) C08L 61/14 (2006.01) C08L 75/12 (2006.01) C09K 21/14 (2006.01)
Patent
CA 2523329
A resin composition for use in a froth spraying system for forming polyurethane foam is disclosed. The resin composition comprises a Mannich polyol, at least one additional polyol other than a Mannich polyol, and a physical blowing agent. The Mannich polyol has a viscosity of at least 4,000 centipoise at 25 °C. The physical blowing agent is selected from the group of volatile non-halogenated C2 to C7 hydrocarbons, hydrofluoro-carbons, hydrochlorocarbons, and mixtures thereof. The physical blowing agent is present in an amount of greater than 10 parts by weight based on 100 parts by weight of the resin composition. A method of forming the polyurethane foam is also provided comprising the steps of providing the resin composition and a polyisocyanate, mixing the resin composition with the polyisocyanate in a mixing chamber to form a mixture, and discharging the mixture from a dispensing gun as the resin composition reacts with the polyisocyanate to form the polyurethane foam.
Couture Pierre
Gardin Greg
Janzen Chris
Basf Aktiengesellschaft
Basf Corporation
Robic
LandOfFree
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