An object of the present invention is to provide a coating film that can be peeled in a sheet form, facilitates removal work and is less likely to be peeled even if used for a long period of time, and an undercoat layer-forming composition for forming an undercoat layer of the coating film. The present invention relates to an undercoat layer-forming composition for forming an undercoat layer of a coating film including the undercoat layer and an antifouling layer adhered to the undercoat layer, wherein the undercoat layer-forming composition comprises a base polymer and a silicone polymer, and a polar group-containing substituent is bonded to at least a part of the silicone polymer.

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.

A surface-treating agent comprising at least one perfluoro(poly)ether group containing silane compound of any of the formulae (A1), (A2), (B1), (B2), (C1) and (C2):

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wherein, each of symbols is as defined in the specification, wherein a proportion of the perfluoro(poly)ether group containing silane compound having a molecular weight of 3,000 or less in the perfluoro(poly)ether group containing silane compounds of any of the above general formulae is 9 mol % or less.

The invention provides a highly durable surface coating intended to inhibit the formation of ice at sub-0 C. temperatures as well as reduce the accumulation of dirt and insect debris to a vehicle surface upon impact. A continuous, durable matrix surrounds both low-surface-energy (low-adhesion) material inclusions as well as hygroscopic material inclusions. Some variations provide a low-friction, low-adhesion material comprising: a durable continuous matrix; a plurality of first inclusions, dispersed within the matrix, each comprising a low-surface-energy polymer; and a plurality of second inclusions, dispersed within the matrix, each comprising a hygroscopic material. The matrix and the first and second inclusions form a lubricating surface layer in the presence of humidity. Other variations employ a durable continuous matrix and a plurality of inclusions, dispersed within the matrix, each comprising a low-surface-energy polymer surrounding a hygroscopic material. Coating precursors and methods of forming final coatings are also described.

An object of the present invention is to provide an antifouling coating composition that can form an antifouling coating film having excellent adhesion to a base (substrate) even in a low-temperature environment, as well as excellent antifouling property. Another object of the present invention is to provide an antifouling coating film, a laminated antifouling coating film, an antifouling tape, a substrate with the antifouling coating film, and a method of producing the same formed from the antifouling coating composition, as well as an antifouling method. The antifouling coating composition of the present invention is an antifouling coating composition containing a photocurable organopolysiloxane (A), a slipping agent (B), and a photopolymerization initiator (C), the content of the photocurable organopolysiloxane (A) in the solid content of the antifouling coating composition being 50% by mass or more and 98% by mass or less.

A surface treatment agent includes: a fluorine-containing compound (A) having a reactive silyl group; a compound (B); and a compound (C) selected from a compound (C1): R.sup.7COR.sup.8, a compound (C2), a compound (C3): R.sup.10[OR.sup.11].sub.qR.sup.12, a hydrofluoroolefin (C4) having from 3 to 8 carbon atoms, and a hydrochlorofluoroolefin (C5) having from 3 to 8 carbon atoms. 0 to 3 members of R.sup.1 to R.sup.6 are fluorine-containing alkyl groups having from 1 to 3 carbon atoms, and the remaining members among R.sup.1 to R.sup.6 represent hydrogen or fluorine atoms. R.sup.7 and R.sup.8 represent a fluorine-containing alkyl group having from 1 to 5 carbon atoms. R.sup.9 represents a residue that forms a 3- to 5-membered ring structure with the carbon atom of a carbonyl group and that has a fluorine atom. R.sup.10 and R.sup.12 represent a fluorine-containing alkyl group having from 1 to 3 carbon atoms, q represents an integer of 1 or more, R.sup.11 represents a perfluoroalkylene group having from 1 to 6 carbon atoms.

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In certain embodiments, the invention is directed to apparatus comprising a liquid-impregnated surface, said surface comprising an impregnating liquid and a matrix of solid features spaced sufficiently close to stably contain the impregnating liquid therebetween or therewithin, and methods thereof. In some embodiments, one or both of the following holds: (i) 0<0.25, where is a representative fraction of the projected surface area of the liquid-impregnated surface corresponding to non-submerged solid at equilibrium; and (ii) S.sub.ow(a)<0, where S.sub.ow(a) is spreading coefficient, defined as .sub.wa.sub.wo.sub.oa, where is the interfacial tension between the two phases designated by subscripts w, a, and o, where w is water, a is air, and o is the impregnating liquid.

The invention provides a highly durable surface coating intended to inhibit the formation of ice at sub-0 C. temperatures as well as reduce the accumulation of dirt and insect debris to a vehicle surface upon impact. A continuous, durable matrix surrounds both low-surface-energy (low-adhesion) material inclusions as well as hygroscopic material inclusions. Some variations provide a low-friction, low-adhesion material comprising: a durable continuous matrix; a plurality of first inclusions, dispersed within the matrix, each comprising a low-surface-energy polymer; and a plurality of second inclusions, dispersed within the matrix, each comprising a hygroscopic material. The matrix and the first and second inclusions form a lubricating surface layer in the presence of humidity. Other variations employ a durable continuous matrix and a plurality of inclusions, dispersed within the matrix, each comprising a low-surface-energy polymer surrounding a hygroscopic material. Coating precursors and methods of forming final coatings are also described.

The present invention relates to a liquid-repellent composition containing a tetrafunctional silane-based compound having a specified structure and a trifunctional silane-based compound having a specified structure as well as a metal catalyst and satisfying a formula (I): 12x64, x represents a ratio of a molar amount of the component (A) to a molar amount of the component (B) (molar ratio), a liquid-repellent sheet including a liquid-repellent layer formed of the foregoing liquid-repellent composition, and production methods of the same.

A durable coating composition includes a silicate binder, a filler, and a crosslinking agent. The coating composition can reduce ice adherence and minimize ice accumulation through inclusion of a film forming lubricant. Articles and overhead conductors coated with such coating compositions are also disclosed.