AMPHIPHILIC SILOXANE-POLYURETHANE FOULING-RELEASE COATINGS AND USES THEREOF

摘要

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.