An erodible antifouling coating composition for application, for example, to ship's hulls to potentially prevent the adhesion and build-up of fouling agents on the hull is described. The coating composition includes 10 to 60% by solids weight of an erodible binder system that excludes a triorgano tin based binder; one or more antifouling agents; and 1 to 10% solids weight of a mixture of silicone oils, wherein the mixture includes a first and second silicone oil each comprising alkyl and aryl groups attached to silicone in a different ratio. A process for producing the composition, a substrate coated with the composition, and a process of coating a substrate with the composition are also described.

The present invention provides an antifouling coating film that exhibits suppressed elution of an organism repellent in exposure to a dynamic water flow in water and exhibits an antifouling property for a long time and a method of manufacturing the same, a water-contacting structure with an antifouling coating film, and an antifouling tape and a method of manufacturing the same, and relates to an antifouling coating film containing a binder (A) and an organism repellent (B), having a riblet structure on a surface thereof, the organism repellent (B) containing one or more kind selected from the group consisting of copper pyrithione, zinc pyrithione, 4-bromo-2-(4-chlorophenyl)-5-(trifluoromethyl)-1H-pyrrole-3-carbonitrile, and 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one, and a method of manufacturing the same.

An ink tube according to an embodiment includes a flexible tube body through which an ink flows, and a liquid repellent membrane which coats at least an inner surface of the flexible tube body. The liquid repellent membrane comprising a fluorine compound having a binding moiety containing a silicon atom and a carbon atom and a perfluoroalkyl group of four or fewer carbon atoms. The binding moiety is covalently bonded directly to the inner surface of the flexible tube body, and the perfluoroalkyl group is at a terminal end of the fluorine compound opposite from an end of the binding moiety.

The disclosure relates to the technical field of inorganic filler and superhydrophobic coating, and in particular, to an inorganic filler dispersion, a superhydrophobic insulating and wear-resistant coating and preparation methods thereof. The inorganic filler dispersion is formed by a primary modification of the micro-nano-meter sized inorganic filler composed of a mixture of a nanometer sized inorganic filler and a submicron-meter sized inorganic filler with a hydrophobic silane coupling agent, and a secondary modification of the primary modified micro-nano-meter sized inorganic filler in an organic solvent with a hydrophobic hydroxy-terminated blocking agent and a catalyst. The inorganic filler dispersion and the hydroxyl-terminated polydimethylsiloxane and other components are ground to obtain a pre-coating mixture, which can be used as reinforcing component and mixed evenly with the latent curing agent and the solvent to obtain a one-component superhydrophobic insulating and wear-resistant coating.

Provided is a water-repellent member in which a silica layer having a specific thickness and mainly composed of silica nanoparticles is provided on the outer surfaces of various substrates, and then a water- and oil-repellent layer having a specific thickness and containing a cured product of a fluorine-containing organosilicon compound as a main component is provided on the outer surface of the silica layer. The water-repellent member is obtained by a method comprising: a step for wet coating a dispersion containing silica nanoparticles and a solvent onto the outer surface of a substrate; a step for drying and removing the solvent from the dispersion; a step for wet coating a solution containing a fluorine-containing organosilicon compound and a solvent onto the outer surface of a silica layer formed by drying and removing the solvent; and a step for drying and removing the solvent from the solution to cure the fluorine-containing organosilicon compound. According to the water-repellent member, a water- and oil-repellent coating having excellent abrasion resistance can be reliably and easily applied to various substrates.

The invention is directed to a fouling control coating composition comprising a functional polysiloxane, a functionalised acrylate-based polymer and a non-curable oligomeric or polymeric fluid, in which the functional polysiloxane and functionalised acrylate-based polymer comprise a siyl moiety of the formula Si(OR.sup.a).sub.a(R.sup.b).sub.3-a, where a is from 1 to 3, R.sup.a is selected from H or optionally substituted C.sub.1-12 alkyl, phenyl, and phenyl comprising one or more C.sub.1-6 alkyl groups, and R.sup.b is selected from H and also from optionally substituted C.sub.1-20 aliphatic hydrocarbyl, C.sub.8-12 aryl, and C.sub.6-12 aryl comprising one or more C.sub.1-6 aliphatic hydrocarbyl groups.

Polymer compositions for coating of metal surfaces including moieties that interact with a metal atom in the metal surface and optionally containing antifoulant moieties. These polymer compositions provide lubricious coatings for medical devices, anticorrosion coatings for metal components, and antifoulant coatings for marine components such as propellers. The polymer composition is synthesized in a safe manner in which the synthesis components are added to a synthesis vat and there is no need for filtration or removal of waste materials in any step including the consumer use. As such this invention provides an environmentally sound approach to composition synthesis, formulation development, and consumer use.

A durable coating composition which reduces ice adherence and minimizes ice accumulation includes a silicate binder, a silane-modified filler, a film forming lubricant, and a crosslinking agent. Articles and overhead conductors coated with such coating compositions are also disclosed.

An ink-repellent member includes a base and an ink-repellent film. The base includes at least one of silicon oxide and tantalum oxide. The ink-repellent film includes a fluorine compound chemically bonded to the base via at least a siloxane bond. The fluorine compound includes a fluorine compound A having a linear molecular structure and an average molecular weight of 1500 or more, and a fluorine compound B having a linear molecular structure and a smaller average molecular weight than the fluorine compound A. The fluorine compound A has a siloxane structure only at a one end of the linear molecular structure, and the fluorine compound B has a siloxane structure or a phosphonic acid structure only at a one end of the linear molecular structure.

A spectacle lens including: a substrate; and an antifogging layer, wherein the antifogging layer contains a resin and metal oxide particles.