Water blown polyurethane spray foam system
First Claim
1. A composition for preparing polyurethane foam comprising:
- an A-side component comprising polyisocynate; and
a B-side component comprising between about 10 to about 50 weight percentage of Mannich polyol, between about 10 to about 80 weight percentage of polyester polyol, between about 10 to about 50 weight percentage of polyether polyol, between about 0.05 to about 10 weight percentage of metal salt catalyst, and between about 0.75 to about 10 weight percentage of water;
where in the volume ratio of A-side component to B-side component is between about 1.05 to about 5.
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Accused Products
Abstract
A composition and a method for producing primarily water blown polyurethane foams is provided. The composition uses isocyanate ratios greater than conventional foam system to provide a water blown polyurethane foam suitable for a wide variety of applications including spray roofing, insulation, etc. The preferred composition for preparing a polyurethane foam comprises an isocyanate component and a polyol component, wherein the polyol component preferably comprises a combination of Mannich polyol, polyester polyol, and polyether polyol. Preferably, the composition includes water to act as a blowing agent and a metal salt catalyst to assist in the reaction. Preferably, the isocyanate index is between about 1.2 and about 2.0. Additional catalysts, surfactants, flame retardants, and blowing agents may also be used depending upon the desired finished product.
30 Citations
48 Claims
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1. A composition for preparing polyurethane foam comprising:
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an A-side component comprising polyisocynate; and
a B-side component comprising between about 10 to about 50 weight percentage of Mannich polyol, between about 10 to about 80 weight percentage of polyester polyol, between about 10 to about 50 weight percentage of polyether polyol, between about 0.05 to about 10 weight percentage of metal salt catalyst, and between about 0.75 to about 10 weight percentage of water;
where in the volume ratio of A-side component to B-side component is between about 1.05 to about 5. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A polyurethane foam comprising the reaction product of:
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an A-side component comprising polyisocyanate; and
a B-side component comprising between about 20 to about 40 weight percentage of Mannich polyol, between about 20 to about 40 weight percentage of polyester polyol, between about 20 to about 40 weight percentage of polyether polyol, between about 0.05 to about 10 weight percentage of metal salt catalyst, and between about 2.0 to about 4.0 weight percentage of water;
where in the volume ratio of A-side component to B-side component is between about 1.2;
1 to about 2.0;
1.
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36. A polyurethane foam comprising the reaction product of:
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an A-side component comprising polyisocyanate; and
a B-side component comprising between about 10 to about 50 weight percentage of Mannich polyol, between about 10 to about 80 weight percentage of polyester polyol, between about 10 to about 50 weight percentage of polyether polyol, between about 0.05 to about 10 weight percentage of metal salt catalyst, and between about 0.75 to about 10 weight percentage of water;
where in the volume ratio of A-side component to B-side component is between about 1.05 to about 5. - View Dependent Claims (37, 38, 39, 40)
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41. A method of applying a polyurethane foam comprising the steps of:
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providing an A-side component comprising polyisocaynate and a B-side component comprising between about 10 to about 50 weight percentage of Mannich polyol, between about 10 to about 80 weight percentage of polyester polyol, between about 10 to about 50 weight percentage of polyether polyol, between about 0.05 to about 10 weight percentage of metal salt catalyst, and between about 0.75 to about 10 weight percentage of water;
where in the volume ratio of A-side component to B-side component is between about 1.05 to about 5;
preparing a surface on which to apply the foam;
reacting the A-side and B-side components; and
applying the reacting components to a surface. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48)
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Specification