An aluminum fin material includes an aluminum plate, an erosion-resistant coating layer on a surface of the aluminum plate, and a hydrophilic coating layer formed on a surface of the erosion-resistant coating layer. The erosion-resistant coating layer contains an acrylic resin and fluororesin particles, an amount of the erosion-resistant coating layer is 0.05 mg/dm.sup.2 or more and 8.00 mg/dm.sup.2 or less, and a content of the fluororesin particles in the erosion-resistant coating layer is 0.05 mass % or more and 8.00 mass % or less.

Disclosed are an anti-icing material with stealth function, a preparation method and use thereof. The anti-icing material with stealth function according to the disclosure includes an electrically insulating and thermally insulating layer, a patterned heating layer, an electrically insulating and thermally conducting layer, and a hydrophobic layer, that are disposed sequentially through stacking, wherein the patterned heating layer has a patterned hollowed-out structure.

An antifouling article including a base material, a diamond-like carbon layer and an antifouling coating layer formed of a surface-treating agent on the diamond-like carbon layer. The surface-treating agent includes a group having a carbon-carbon unsaturated bond, a group having a carbon-nitrogen unsaturated bond, or a leaving group.

The present invention provides a method for producing an optical film excellent in anti-fouling properties and scratch resistance as well as anti-reflection properties. The method includes the steps of: (1) applying a lower layer resin and an upper layer resin; (2) forming a resin layer having the uneven structure on a surface thereof by pressing a mold against the lower layer resin and the upper layer resin from the upper layer resin side in the state where the applied lower layer resin and upper layer resin are stacked; and (3) curing the resin layer, the lower layer resin containing at least one kind of first monomer that contains no fluorine atoms, the upper layer resin containing a fluorine-containing monomer and at least one kind of second monomer that contains no fluorine atoms, at least one of the first monomer and the second monomer containing a compatible monomer that is compatible with the fluorine-containing monomer and being dissolved in the lower layer resin and the upper layer resin.

A liquid repellent structure including: a surface to which liquid repellency is to be imparted; and a liquid repellent layer formed on the surface, wherein the liquid repellent layer contains a binder resin containing a fluorine-containing resin, and a filler dispersed in the binder resin, the filler contains a first filler having a BET specific surface area M of 100 m.sup.2/g to 400 m.sup.2/g, and a ratio M/F of the BET specific surface area M of the first filler to a mass F (mass %) of the fluorine-containing resin relative to a total mass of the liquid repellent layer is 1.5 to 4.0.

The present disclosure provides for a coating composition system suitable for forming a stain resistant and soft tactile texture coating onto a variety of substrate materials including plastic materials, metal materials, ceramic materials, and concrete materials. The coating composition system can be cured under mild curing conditions, and provides the resulting coating with excellent properties in terms of adhesion to the substrates, strength, and abrasion resistance. The present disclosure also provides for a method for preparing the coating composition system, and the use thereof.

An alkali-resistant water repellent member according to the present invention has: a silica layer on at least one surface of a base material, said silica layer having a film thickness of from 1 nm to 5 μm, while containing 50% by mass or more of silica nanoparticles and 1% by mass or more of an organosilicon compound that has a plurality of silanol groups in each molecule; and a water repellent oil repellent layer on the outer surface of the silica layer, said water repellent oil repellent layer having a film thickness of from 0.5 nm to 30 nm, while being mainly composed of a cured product of a hydrolyzable fluorine-containing organosilicon compound. This alkali-resistant water repellent member is able to easily provide various base materials with a water repellent oil repellent coating film in a stable manner, said coating film having excellent alkali resistance and wet wear resistance.

A coating film and a method for forming the same are provided. The coating film controls reduction in repellency of hydrophobic fine particles and increases rub fastness of the coating film. The coating film includes a ground layer containing thermoplastic resin (chlorinated polyolefin or acid modified chlorinated polyolefin, for example) and an upper layer containing hydrophobic fine particles (hydrophobic silica particle or silicone resin particle, for example) formed on the ground layer. Parts of the hydrophobic fine particles contained in the upper layer are buried in the ground layer.

Compositions are provided according to aspects of the present invention that include a hydrogel and a liner, wherein a surface of the hydrogel dissociably-engages a surface of the liner. Compositions are provided according to aspects of the present invention that include a hydrogel and a hydrophobic glue, wherein at least a portion of the gel network of the hydrogel is occupied by the hydrophobic glue. Reverse coaling processes and articles of manufacture made by reverse coating processes are provided according to aspects of the present invention. Compositions are provided according to aspects of the present invention that include a hydrogel and a substrate, wherein: the hydrogel comprises a polymer network; the substrate comprises a surface comprising a polymer network; and the polymer network of the hydrogel and the polymer network of the surface are entangled.

A coating that is able to shed accumulated material (such as ice) that includes a crosslinkable copolymer with hydrogen bonding moieties and liquid-like side chains, and an oil (or other non-aqueous liquid) that is compatible with the side-chains and that resides in the crosslinked coating and on the surface of the coating together with the side-chains that are on the external surface. Methods may use the coating for de-icing, shedding of marine organisms, and smudge-repellency.