Coating composition
AssigneeExtensor, LLC
InventorChristian Bigner
Life of this patent
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Abstract
An antifouling coating composition for boat hulls, etc. based on a combination of fluoro-carbon polymers especially polytetrafluoroethylene and antifouling agent, especially copper metal and Cu.sub.2 O, as active constituents. Additional binders and fillers can be included.
Claims9
An anti-fouling composition for coating on a surface intended to be submerged in water comprising a binder, form 1 to 50% of polytetrafluoroethylene particles, based on the dry weight of the composition, and from 5 to 95%, based on the dry weight of the composition, of an antifouling agent selected from the group consisting of copper metal and copper and zinc compounds, and also comprising a liquid dispersion medium, including at least one halogenated hydrocarbon, the polytetrafluoroethylene particles being dispersed in said liquid dispersion medium.
An antifouling composition in the form of a coating on a substrate under water, said substrate being subject to fouling with organisms which live in water, said composition being in direct contact with the water and imparting antifouling characteristics to said substrate and comprising a binder, from 1 to 50% of polytetrafluoroethylene particles, based on the dry weight of the composition, and from 5 to 95%, based on the dry weight of the composition, of an antifouling agent selected from the group consisting of copper metal and copper and zinc compounds.
Dependencies are inferred from the claim text.