Methods of forming a boat hull include applying an outer polymer layer onto a hull mold, the outer polymer layer being impregnated with a biologically active chemical substance that inhibits biofouling-induced chemical, biological, and bio-proliferative damage. An inner polymer layer is applied onto the outer polymer layer, the inner polymer layer being impregnated with a biologically active chemical substance that inhibits biofouling-induced chemical, biological, and bio-proliferative damage. One or more layers of fiberglass matting are applied on the inner polymer layer, the fiberglass matting being saturated with a polymer selected from one of a group of polymers comprising a vinyl ester polymer, a phthalic unsaturated polyester polymer, and an epoxy polymer.

A composition that is easily applied, clear, well-bonded, and superhydrophobic is disclosed. In one aspect, the composition includes a hydrophobic fluorinated solvent, a binder comprising a hydrophobic fluorinated polymer, and hydrophobic fumed silica nanoparticles. Also disclosed is a structure including a substrate coated with the composition, as well as a method for making the composition and a method of coating a substrate with the composition.

An anti-fouling (anti-pollution) coating material and a method of manufacturing a coating film are provided herein. The anti-fouling coating material has characteristics such as, but not limited to, an anti-fouling property, water repellency, oil repellency, and improved adhesion to a base material such as a lens. The anti-fouling coating material includes (a) a base material, (b) a low-reflectivity coating layer having a multilayer structure in which a silicon dioxide (SiO.sub.2)-containing layer and a titanium dioxide (TiO.sub.2)-containing layer are alternately stacked, (c) an anti-fouling coating layer that is formed on the low-reflectivity coating layer and includes an organic/inorganic composite material in which a silicon compound and a fluorine compound are linked to each other, and (d) an adhesion improving layer interposed between the base material and the low-reflectivity coating layer. The anti-fouling coating material is not readily detached to the surface of the base material such as a lens due to its superior adhesivity. Thus, the anti-fouling coating material can stably exert water repellency and oil repellency for a long time.

The present invention provides a novel antifouling article comprising a base material, a diamond-like carbon layer and an antifouling coating layer which is formed on the diamond-like carbon layer from a surface treating agent comprising a perfluoropolyether group-containing compound and having high acid resistant and alkaline resistant.

An article having antifouling properties and intended to be employed in aquatic uses, in particular marine uses, which comprises: a) a support, b) optionally, at least one primer coat on said support comprising at least one anticorrosive product, c) optionally, at least one intermediate primer coat promoting adhesion between the coats, d) at least one adhesion-promoting coat or tie coat, deposited on said primer coat or on said support when the primer coat is absent, and e) at least one antifouling coat or topcoat, deposited on said adhesion-promoting coat or tie coat.

A baking-type aqueous organic silicon fluorine-containing polymer paint is provided, which includes an aqueous organic silicon fluorine-containing polymer dispersion and a curing agent. The curing agent includes aqueous amino resin, aqueous isocyanate resin, or a combination thereof. In addition, the paint may further include an assist resin such as aqueous polyester resin, aqueous acrylic acid resin, aqueous epoxy resin, aqueous phenoxy resin, or a combination thereof.

The present disclosure relates to a method for reducing or preventing colloids adhesion and/or fouling on a substrate in need thereof by forming a coating having a first layer that includes a polyphenol compound, and a second layer that includes a hydrophilic polymer having repeating units derived from one or more zwitterionic monomers, typically one or more betaine monomers, on the substrate. The present disclosure also relates to the coating made thereby and an article having the said coating.

The invention provides a water- and oil-repelling member having a primer layer as a first layer on at least one surface of a base material and further having a water- and oil-repelling layer as a second layer on the outer surface of the primer layer. The primer layer comprises a layer containing nano-diamonds and having a film thickness of 0.5 to 500 nm, the main component being an organic silicon compound having a plurality of silanol groups within a molecule. The water- and oil-repelling layer comprises a layer having a film thickness of 0.5 to 30 nm, the main component being a cured product of a hydrolysable fluorine-containing compound. The water- and oil-repelling member can stably and simply impart a water- and oil-repelling coat having excellent abrasion resistance to various base materials. In addition, the primer layer and the water- and oil-repelling layer can be coated even in a room-temperature (25° C.) process.

A method for the prevention of zooglea growth within an air conditioning system includes applying an antifouling coating to an interior of a condensate pipe of the air conditioning system, where the antifouling coating has a base layer of an algaecide, an intermediate layer of a hydrophobic polymer, and a top layer of a metallic powder. The method of applying the antifouling coating includes pouring the algaecide coating into the condensate pipe, spinning the condensate pipe, and drying the algaecide coating. The method also includes pouring the hydrophobic polymer into the condensate pipe, spinning the condensate pipe to apply the hydrophobic polymer over the algaecide coating, partially drying the hydrophobic polymer, and pouring the metallic powder into the condensate pipe. In addition, the method includes spinning the condensate pipe to apply the metallic powder over the hydrophobic polymer, and drying the hydrophobic polymer until the metallic powder is embedded.

Articles including repellent surfaces and methods of making and using these articles are disclosed. The repellant surface can comprise a polymer having a roughened surface and a fluorinated silane and a lubricating liquid deposited on the roughened surface. The repellent surface, and by extension the articles described herein, can exhibit superomniphobic properties. The methods for producing the repellant surface can comprise dissolving a polymer in a solvent to produce a polymer solution and optionally adding a non-solvent to the polymer solution to produce a casting mixture. The polymer solution or casting mixture can be deposited on a surface of a substrate and the solvent and/or the non-solvent evaporated to provide a coated-substrate having a roughened surface. A functional layer comprising a fluorinated silane followed by a lubricating liquid can be deposited on the roughened surface to form the repellant surface.