Ndsu-research Foundation

Alireza Rahimi

Dean C Webster

The invention relates to a curable coating composition comprising at least one surface-modifying amphiphilic additive and at least one siloxane-polyurethane coating composition. The invention also relates to methods of making and using the curable coating composition of the invention. The invention also relates to methods for reducing or preventing biofouling of a surface exposed to an aqueous environment comprising the use of the curable coating composition of the invention.

Amphiphilic surface-modifying additives to improve fouling-release of marine coatings

The invention is directed to curable polyurethane coating compositions which may be used to form fouling release coatings, e.g., for use in protecting boat hulls. A curable coating composition of the invention comprises a) at least one amphiphilic additive; b) at least one polyisocyanate; c) at least one polyol; and d) optionally, at least one amphiphilic PEG-PDMS isocyanate prepolymer. Another curable coating composition of the invention comprises the at least one polyisocyanate, b), the at least one polyol, c), and the at least one amphiphilic PEG-PDMS isocyanate prepolymer, d). The invention further relates to methods for reducing or preventing biofouling of a surface exposed to an aqueous environment comprising the steps of coating the surface with the curable coating compositions of the invention to form a coated surface, and curing the coating composition on the coated surface.

Amphiphilic siloxane-polyurethane fouling-release coatings and uses thereof

The invention relates to a curable coating composition comprising at least one glycidyl carbamate (GC) resin, at least one amphiphilic GC-functional prepolymer, and at least one curing agent. The invention also relates to a method of making the curable coating compositions. The invention also relates to an article of manufacture comprising the curable coating composition of the invention and a method of making such article. The invention also relates to a fouling-release (FR) coating system and an anti-coating system, each of which comprises the curable coating compositions of the invention, methods of applying the FR coating systems and anti-coating systems to substrates, and methods for reducing or preventing biofouling or icing of a surface exposed to an aqueous environment using the FR coating systems.

Curable coating compositions containing glycidyl carbamate resins and amphiphilic glycidyl-carbamate-functional prepolymers having fouling-release and anti-icing properties

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N. Royalton, OH, United States of America

Alireza Rahimi