Polyurethane foams made with vegetable oil hydroxylate,...

Details Polyurethane foams made with vegetable oil hydroxylate,... Polyurethane foams made with vegetable oil hydroxylate,...

C - Chemistry, Metallurgy

08

G

C08G 18/48 (2006.01) C08G 18/44 (2006.01) C08J 9/228 (2006.01)

Patent

CA 2541924

The present invention provides polyurethane foams made from a polyisocyanate and a polyol component containing a polymer polyol (PMPO), a vegetable oil hydroxylate and an aliphatic polyhydroxy alcohol, and optionally a non-vegetable oil-based polyol. The vegetable oil hydroxylates are environmentally-friendly, bio-based polyols. The inclusion of low amounts of a polymer polyol unexpectedly results in a foam having significantly improved tear strength. The combination of polymer polyol and aliphatic polyhydroxy alcohol provides improved foam processing while maintaining or improving tear strength of the foam.

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