The present invention relates to an ethylene-vinyl alcohol copolymer (EVOH) resin composition, an EVOH film formed therefrom, and a multilayer structure containing the same. The core void volume (Vvc) of the surface of the EVOH resin composition is more than 0.010 μm.sup.3/μm.sup.2 and less than 50 μm.sup.3/μm.sup.2; or its surface pole height (Sxp) is more than 0.010 μm and less than 9.0 μm. The invention can reduce the torque output during processing, reduce the adsorption of fine powder on the surface caused by static electricity generated on the surface of the EVOH, and provide good film thickness uniformity.

The present invention relates to an ethylene-vinyl alcohol copolymer (EVOH) resin composition, an EVOH film formed therefrom, and a multilayer structure containing the same. The core void volume (Vvc) of the surface of the EVOH resin composition is more than 0.010 μm.sup.3/μm.sup.2 and less than 50 μm.sup.3/μm.sup.2; or its surface pole height (Sxp) is more than 0.010 μm and less than 9.0 μm. The invention can reduce the torque output during processing, reduce the adsorption of fine powder on the surface caused by static electricity generated on the surface of the EVOH, and provide good film thickness uniformity.

Disclosed herein are a polyimide film for graphite sheets, a method of fabricating the same, and a graphite sheet fabricated using the same. The polyimide film is fabricated by imidizing a polyamic acid formed by reaction between a dianhydride monomer and a diamine monomer, wherein the reaction is carried out in the presence of a metal compound and the polyamic acid forms a chelate with metal ions.

The present disclosure provides a polymeric material including a polymerized reaction product of a polymerizable composition including components and an inorganic filler. The components include a uretdione-containing material including a reaction product of a diisocyanate reacted with itself; a first hydroxyl-containing compound; and an optional second hydroxyl-containing compound having a single OH group. The present disclosure also provides a two-part composition, in which the polymeric material is included in the first part and the second part includes at least one amine. Further, a method of adhering two substrates is provided, including obtaining a two-part composition; combining at least a portion of the first part with at least a portion of the second part to form a mixture; disposing at least a portion of the mixture on a first substrate; and contacting a second substrate with the mixture disposed on the first substrate. The disclosure also provides a polymerized product of the two-part composition and a battery module. Advantageously, two-part compositions can be used as coatings and adhesive systems including high loadings of inorganic filler, such as thermally conductive filler, with handling and performance similar to existing two-part urethane systems, but with less sensitivity to water.

The present disclosure provides a polymeric material including a polymerized reaction product of a polymerizable composition including components and an inorganic filler. The components include a uretdione-containing material including a reaction product of a diisocyanate reacted with itself; a first hydroxyl-containing compound; and an optional second hydroxyl-containing compound having a single OH group. The present disclosure also provides a two-part composition, in which the polymeric material is included in the first part and the second part includes at least one amine. Further, a method of adhering two substrates is provided, including obtaining a two-part composition; combining at least a portion of the first part with at least a portion of the second part to form a mixture; disposing at least a portion of the mixture on a first substrate; and contacting a second substrate with the mixture disposed on the first substrate. The disclosure also provides a polymerized product of the two-part composition and a battery module. Advantageously, two-part compositions can be used as coatings and adhesive systems including high loadings of inorganic filler, such as thermally conductive filler, with handling and performance similar to existing two-part urethane systems, but with less sensitivity to water.

An aspect of the present invention is a resin composition, which contains a polyphenylene ether compound, a curing agent, boron nitride, and an inorganic filler other than the boron nitride, in which the content of boron nitride is 15 to 70 parts by volume with respect to 100 parts by volume of the sum of the polyphenylene ether compound and the curing agent.

An aspect of the present invention is a resin composition, which contains a polyphenylene ether compound, a curing agent, boron nitride, and an inorganic filler other than the boron nitride, in which the content of boron nitride is 15 to 70 parts by volume with respect to 100 parts by volume of the sum of the polyphenylene ether compound and the curing agent.

An aspect of the present invention is a resin composition, which contains a polyphenylene ether compound, a curing agent, boron nitride, and an inorganic filler other than the boron nitride, in which the content of boron nitride is 15 to 70 parts by volume with respect to 100 parts by volume of the sum of the polyphenylene ether compound and the curing agent.

One aspect of the present invention provides a boron nitride powder that contains aggregated particles formed through aggregation of primary particles of boron nitride. The cumulative pore volume of the boron nitride powder within a fine pore radius of 0.02-1.2 μm as measured by a mercury porosimeter is 0.65 mL/g or less.

One aspect of the present invention provides a boron nitride powder that contains aggregated particles formed through aggregation of primary particles of boron nitride. The cumulative pore volume of the boron nitride powder within a fine pore radius of 0.02-1.2 μm as measured by a mercury porosimeter is 0.65 mL/g or less.