Provided is a resin composition having excellent dielectric characteristics, i.e., low dielectric characteristics, in the high-frequency region, and excellent dielectric characteristics, i.e., low dielectric characteristics, under high humidity, and having practical adhesion to metal and resin substrates. More specifically, provided is a resin composition comprising an acid-modified polyolefin, an epoxy resin, and an inorganic filler, wherein a cured product of the resin composition has a dielectric loss tangent of 0.003 or less at a frequency of 10 GHz at 25° C. after storage for 168 hours under conditions of 85° C. and 85% RH (relative humidity).

Provided is a resin composition having excellent dielectric characteristics, i.e., low dielectric characteristics, in the high-frequency region, and excellent dielectric characteristics, i.e., low dielectric characteristics, under high humidity, and having practical adhesion to metal and resin substrates. More specifically, provided is a resin composition comprising an acid-modified polyolefin, an epoxy resin, and an inorganic filler, wherein a cured product of the resin composition has a dielectric loss tangent of 0.003 or less at a frequency of 10 GHz at 25° C. after storage for 168 hours under conditions of 85° C. and 85% RH (relative humidity).

Beverage containers and methods of coating are provided. The beverage containers include a metal substrate that is at least partially coated with a coating prepared from a composition that have robust adhesion and mechanical properties after cure.

An organic fine particle comprising a core polymer and a shell polymer. The core polymer has a Tg or a melting point of 15° C. or more, the core polymer has a water contact angle of 100° or more, all monofunctional monomers constituting the core polymer are a hydrophobic core monomer of which homopolymer has a water contact angle of 100° or more, the shell polymer has a Tg or a melting point lower than Tg or the melting point of the core polymer, the shell polymer has a water contact angle of less than 100°, and all monofunctional monomers constituting the shell polymer are a water-insoluble shell monomer of which homopolymer is water-insoluble. Also disclosed is a surface coating structure including the organic fine particle and a water-repellant composition including a dispersion of the organic fine particle.

An organic fine particle comprising a core polymer and a shell polymer. The core polymer has a Tg or a melting point of 15° C. or more, the core polymer has a water contact angle of 100° or more, all monofunctional monomers constituting the core polymer are a hydrophobic core monomer of which homopolymer has a water contact angle of 100° or more, the shell polymer has a Tg or a melting point lower than Tg or the melting point of the core polymer, the shell polymer has a water contact angle of less than 100°, and all monofunctional monomers constituting the shell polymer are a water-insoluble shell monomer of which homopolymer is water-insoluble. Also disclosed is a surface coating structure including the organic fine particle and a water-repellant composition including a dispersion of the organic fine particle.

Beverage containers and methods of coating are provided. The beverage containers include a metal substrate that is at least partially coated with a coating prepared from a composition that includes a binder system, a cross linker, and a catalyst.

In an ingredient for a secondary cell separator coating material including a core shell particle including a core layer containing a first polymer and a shell layer covering the first polymer and including a second polymer, the first polymer has a repeating unit derived from alkyl (meth)acrylate; the second polymer has a repeating unit derived from (meth)acrylamide of 40 to 97% by mass, and a repeating unit derived from a carboxy group-containing vinyl monomer of 3 to 60% by mass; and a ratio of the second polymer to the first polymer is 4 to 250.

Disclosed are maleic anhydride-grafted cyclic olefin copolymers, methods for preparing maleic anhydride-grafted cyclic olefin copolymers, low temperature methods for laminating anodes comprising the maleic anhydride-grafted cyclic olefin copolymers, and anodes and alkali ion batteries that comprise the maleic anhydride-grafted cyclic olefin copolymers.

A surface-treated metal sheet for adhesion to polyolefin includes a metal sheet, and a resin layer provided on at least one surface of the metal sheet. The resin layer contains an acid- modified polyolefin, the acid-modified polyolefin contains a first acid-modified polyolefin having an acid value of 5 mgKOH/g or less, particularly 4 to 5 mgKOH/g, and a second acid- modified polyolefin having an acid value of 20 mgKOH/g or more and a melting point of higher than 90° C., and a difference between a melting point of the first acid-modified polyolefin and the melting point of the second acid-modified polyolefin is 0° C. or more and less than 40° C. The resin layer has a surface roughness of 12 μm or less in terms of arithmetic average roughness Ra.

A surface-treated metal sheet for adhesion to polyolefin includes a metal sheet, and a resin layer provided on at least one surface of the metal sheet. The resin layer contains an acid- modified polyolefin, the acid-modified polyolefin contains a first acid-modified polyolefin having an acid value of 5 mgKOH/g or less, particularly 4 to 5 mgKOH/g, and a second acid- modified polyolefin having an acid value of 20 mgKOH/g or more and a melting point of higher than 90° C., and a difference between a melting point of the first acid-modified polyolefin and the melting point of the second acid-modified polyolefin is 0° C. or more and less than 40° C. The resin layer has a surface roughness of 12 μm or less in terms of arithmetic average roughness Ra.