Anchored polysiloxane-modified polyurethane coatings and uses thereof
AssigneeNDSU Research Foundation
InventorsDean C. Webster, Abdullah Ekin, Stacy Sommer
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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.
Claims31
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.
A polymeric material prepared by reacting a mixture comprising:
- 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.
A polymeric material formed from reactants which comprise:
- 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.
Dependencies are inferred from the claim text.