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Polyurethane foams made with vegetable oil hydroxylate, polymer polyol and aliphatic polyhydroxy alcohol
Polyurethane foams made with vegetable oil hydroxylate, polymer polyol and aliphatic polyhydroxy alcohol
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机译:由植物油羟基化物,聚合物多元醇和脂肪族聚羟基醇制成的聚氨酯泡沫
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摘要
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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