A composition suitable for coating a metallic substrate that is susceptible to corrosion is disclosed. The composition comprises a carrier medium, 2D material/graphitic platelets, and one or both of conductive carbon black particles and carbon nanotubes, in which the 2D material/graphitic platelets comprise nanoplates of one or more 2D materials and or nanoplates of one or more layered 2D materials and or graphite flakes in which the graphite flakes have one nanoscale dimension and 25 or less layers, the conductive carbon black particles have a mean particle size in the range of 1 nm to 1000 nm, and the carbon nanotubes are single or multiwalled.

A component (10) for a motor vehicle has a main body (12) produced from a magnesium material. The main body (12) has a visible surface (14) with an arithmetic mean roughness Ra of 1 to 40 m. A clear lacquer coating (40) is disposed on the visible surface (14) of the main body (12) and has a layer thickness of at most 60 m. The clear lacquer coating (40) is applied so that the surface structure (15) of the main body (12) that is disposed below the clear lacquer coating (40) is distinguishable in a visible and haptic manner.

A method of producing a structure containing a phase-separated structure, the method including: applying a brush composition to a substrate to form a brush layer; forming a layer containing a block copolymer on the brush layer; and phase-separating the layer containing the block copolymer, the brush composition including a resin component (A), the resin component (A) containing a polymeric compound (A1) in which a first polymer block and a second polymer block are bonded to each other through a linking group containing a substrate adhering group.

A coating composition for a food or beverage can that includes an emulsion polymerized latex polymer formed by combining an ethylenically unsaturated monomer component with an aqueous dispersion of a water-dispersible polymer.

A method of forming anti-rust or anti-bacterial film includes mixing a predetermined liquid and a film-forming composition which contains a tannic acid derivative in which hydrogen atoms in at least 10% of hydroxyl groups of tannic acid are substituted by a chain hydrocarbon group having 10 to 16 carbon atoms, and removing the liquid.

A coated metal alloy substrate with at least one chamfered edge, a process for producing a coating a metal alloy substrate, and an electronic device having a housing comprising a coated metal alloy substrate are described. The coated metal alloy substrate with at least one chamfered edge comprises a hydrophobic anti-fingerprint layer deposited on the metal alloy substrate, a passivation layer deposited on the at least one chamfered edge, and a water based paint layer deposited on the passivation layer.

Disclosed herein are systems and methods for treating a metal substrate. The system includes a first pretreatment composition comprising a fluorometallic acid and free fluoride and having a pH of 1.0 to 4.0 and a second pretreatment composition comprising a Group IVB metal or a third pretreatment comprising a lanthanide series metal and an oxidizing agent. The method includes contacting at least a portion of a surface of the substrate with the first pretreatment composition and optionally contacting at least a portion of the substrate surface with the second pretreatment composition or the third pretreatment composition. Also disclosed are substrates treated with one of the systems or methods. Also disclosed are magnesium or magnesium alloy substrates comprising a bilayer comprising a first layer comprising silicone and a second layer comprising fluoride.

In order to achieve further improvement in flaw resistance, the present invention includes: a metal sheet; and a color film layer positioned on the metal sheet, wherein: on a surface, of the metal sheet, on a side on which at least the color film layer is positioned, a first region and a second region that are specified by a measuring method of an arithmetic mean surface roughness Sa are present; and the color film layer has a thickness of 1 to 10 ?m, and contains particles having a particle diameter equal to or larger than the thickness.

A coated substrate for an electronic device can include a substrate, a basecoat layer on the substrate, and an anti-fingerprint topcoat layer on the basecoat layer. The substrate can include a metal or metal alloy. The basecoat layer can include pigment particles and a first one-part thermally cured polymeric resin. The anti-fingerprint topcoat layer can include a second one-part thermally cured polymeric resin and an anti-fingerprint material. The anti-fingerprint material can include a fluoropolymer, a silane, or a combination thereof. The basecoat layer can be cured before applying the anti-fingerprint topcoat layer on the basecoat layer.

A coating composition for a food or beverage can that includes an emulsion polymerized latex polymer formed by combining an ethylenically unsaturated monomer component with an aqueous dispersion of a water-dispersible polymer.