According to one or more embodiments, an antifouling material may be produced by forming a nanostructured mold, where a liquid mold precursor is contacted with a textured surface of a nanostructured template, the liquid mold precursor is solidified to the nanostructured template, and the formed nanostructured mold is removed from the nanostructured template. The antifouling material may be formed by contacting a liquid precursor mixture with a textured surface of the nanostructured mold, solidifying the liquid precursor mixture onto the nanostructured mold, and removing the formed antifouling material from the nanostructured mold. The antifouling material may include a nanostructured surface and may further include a toxin.

A micro-nano hierarchical structure for drag reduction and microbial adhesion prevention includes a metallic support plate having formed on its surface a plurality of arrays which are each composed of a plurality of metallic micro-structures and which are arranged in parallel, and a plurality of metallic nano-structures uniformly formed on the micro-structures and the support plate.

The invention relates to a hull of a vessel having characteristic surface properties, allowing an increase in surface runoff while benefiting from an inherent anti-fouling property and an original aesthetic appearance. Furthermore, the invention allows the incorporation of said outer composite envelope into the structure of the hull, thereby preventing delamination problems and inherently providing a vessel hull with the above-mentioned properties.

A composition containing 4,5-dichloro-2-n-octylisothiazolin-3-one, an activated carbon having a surface area of at least 700 m.sup.2/g and a cured isocyanate.

A coating for a roughened metal surface of an implantable medical device includes a poly(ethylene glycol) disposed on at least a portion of the roughened metal surface, wherein the poly(ethylene glycol) is covalently bonded directly to the roughened metal surface.

Provided are an antifouling coating composition that contains: a hydrolyzable resin having a specific silicon-containing group and a metal-atom-containing group containing a divalent metal atom M; and a thermoplastic resin and/or a plasticizer, wherein the total content of the thermoplastic resin and/or plasticizer per 100 parts by mass of the hydrolyzable resin is 3 to 100 parts by mass, an antifouling film, a composite film and an in-water structure such as a ship using the antifouling coating composition. The antifouling coating composition makes it possible to form a coating film that is excellent in crack resistance and exhibits a good antifouling property over a long period of time even when no antifouling agent is contained or the blending amount thereof is small.

The present invention relates to a fouling control coating composition comprising an ingredient having biocidal properties for aquatic organisms and (a1) a polymer comprising quaternary ammonium groups and/or quaternary phosphonium groups bound to the backbone of the polymer, said quaternary ammonium groups and/or quaternary phosphonium groups being neutralised by a conjugate base of a sulphonic acid having an aliphatic, aromatic, or alkaryl hydrocarbyl group, and (a2) a polymer comprising silyl ester groups. The invention further relates to a method of protecting a man-made structure immersed in water from fouling, and a substrate or structure coated with the fouling control coating composition.

Water-based compositions that are resistant to dirt pickup, efflorescence, tannin bleed-through and surfactant leaching are described. The water-based composition includes a latex or water-dispersible polymer and a non-VOC UV-VIS (preferably, ultraviolet) absorber as a dirt pickup resistance additive. Methods of making water-based compositions including a non-VOC UV-VIS absorber as an additive are also described.

An article having antifouling properties and intended to be employed in aquatic uses, in particular marine uses. In particular there is provided an article having antifouling properties and intended to be employed in aquatic 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.

The present invention provides application of camptothecin and derivatives thereof as antifouling agent, relating to camptothecin. Application of camptothecin and derivatives thereof as antifouling agent for facilities in water is provided, wherein the antifouling agent contains camptothecin and/or at least one of its derivatives. The application of camptothecin and derivatives thereof as antifouling agent for facilities in water can be used to prevent attachment of marine or freshwater micro-fouling organisms and/or large fouling organisms to the surfaces of facilities in the sea, lake, river or pool. The antifouling agent may also be used in mixture with other antifouling substance. Antifouling method for artificial facilities in water is provided. An antifouling paint for facilities in water is provided. Camptothecin and its derivatives have significant inhibitory activity to the attachment of fouling organisms, i.e. having antifouling activity, and can be used to prevent the attachment of fouling organisms on the surfaces of artificial facilities in water. Camptothecin and its derivatives have high antifouling activity, good antifouling efficiency, and broad-spectrum antifouling.