Anchored polysiloxane-modified polyurethane coatings and uses thereof
First Claim
Patent Images
1. A polymeric material prepared by reacting a mixture comprising:
- polyisocyanate;
polyol; and
a polysiloxane component having two or more polyorganosiloxane chains attached to a linker group, which has one or more functional groups capable of reacting with the polyisocyanate attached thereto.
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Abstract
A polymeric material, prepared by reacting a mixture comprising a polyorganosiloxane having one or more isocyanate-reactive functional groups, polyisocyanate, and polyol, is provided. The isocyanate-reactive functional groups, typically one or two, are attached to only a single end of the polyorganosiloxane chains. The polymeric material may be used to form coatings on a substrate and to inhibit fouling on surfaces exposed to aqueous conditions.
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Citations
31 Claims
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1. A polymeric material prepared by reacting a mixture comprising:
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polyisocyanate; polyol; and a polysiloxane component having two or more polyorganosiloxane chains attached to a linker group, which has one or more functional groups capable of reacting with the polyisocyanate attached thereto. - View Dependent Claims (2, 3)
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4. A polymeric material prepared by reacting a mixture comprising:
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polyisocyanate; polyorganosiloxane having one or more reactive functional groups attached to only a single end of the polyorganosiloxane; and polyol which comprises hydroxyl-functional poly(meth)acrylate, polycaprolactone polyol, or a mixture thereof; wherein the reactive functional groups are hydroxyl alkyl carbamate groups or amino groups. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A polymeric material formed from reactants which comprise:
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polyisocyanate; polydialkylsiloxane having one or more amino groups attached to only a single end of the polyorganosiloxane; and polyol, which includes a polyester polyol, acrylic polyol or a mixture thereof. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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Specification