Moisture curable polyurethane compositions
First Claim
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1. A moisture curable composition comprising a polyurethane prepolymer comprising the reaction product ofa) a polyol having an unsaturation of less than 0.02 meq/g;
- and b) a polyfunctional isocyanate, said composition forming a pressure sensitive adhesive when cured.
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Abstract
A moisture curable composition that includes a polyurethane prepolymer comprising the reaction product of a) a polyol having an unsaturation of less than 0.02 meq/g; and b) a polyfunctional isocyanate, where the composition forms a pressure sensitive adhesive when cured, is disclosed.
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Citations
21 Claims
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1. A moisture curable composition comprising a polyurethane prepolymer comprising the reaction product of
a) a polyol having an unsaturation of less than 0.02 meq/g; - and
b) a polyfunctional isocyanate, said composition forming a pressure sensitive adhesive when cured. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 19, 20)
a) a substrate; and
b) the composition of claim 1 coated on a surface of said substrate.
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20. A pressure sensitive adhesive composition comprising the moisture curable composition of claim 1.
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14. A moisture curable composition comprising a polyurethane prepolymer comprising the reaction product of
a) a polyol having a molecular weight of at least about 6,000; - and
b) a polyfunctional isocyanate, said composition forming a pressure sensitive adhesive when cured. - View Dependent Claims (15, 16, 17, 18)
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21. A pressure sensitive adhesive comprising the reaction product of
a) moisture, and b) a polyurethane prepolymer comprising the reaction product of i) a polyol having an unsaturation of less than 0.02 meq/g; - and
ii) a polyfunctional isocyanate.
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Specification