Provided is a boron nitride powder having excellent adhesion to a resin. The boron nitride powder has a hexagonal structure, has a carboxyl group present on a surface of the boron nitride powder, and has a molar ratio of carboxyl group to nitrogen atom of 0.001 or more on a surface of the boron nitride powder.

A polymer composition comprising from about 20 vol. % to about 60 vol. % of a polymer matrix that includes a liquid crystalline polymer and from about 20 vol. % to about 60 vol. % of magnetic particles is provided. The ratio of the volume of the polymer matrix to the volume of the magnetic particles is from about 0.6 to about 1.5.

A polymer composition comprising from about 20 vol. % to about 60 vol. % of a polymer matrix that includes a liquid crystalline polymer and from about 20 vol. % to about 60 vol. % of magnetic particles is provided. The ratio of the volume of the polymer matrix to the volume of the magnetic particles is from about 0.6 to about 1.5.

A solar radiation shielding fine particle dispersion body containing a thermoplastic resin, solar radiation shielding fine particles, a solar radiation shielding fine particle-containing masterbatch, a solar radiation shielding resin formed body formed into a predetermined shape using the same, and a solar radiation shielding resin laminate including the solar radiation shielding resin formed body stacked on another transparent formed body. A liquid solar radiation shielding fine particle dispersion body, including a mixture of solar radiation shielding fine particles and at least one selected from an organic solvent and a plasticizer dispersed therein or a solar radiation shielding fine particles including a powder solar radiation shielding fine particles dispersion body, obtained by removing a liquid component from the solar radiation fine particle dispersion body upon heating, dispersed in a resin component, wherein the solar radiation shielding fine particles are solar radiation shielding fine particles containing calcium lanthanum boride fine particles.

A solar radiation shielding fine particle dispersion body containing a thermoplastic resin, solar radiation shielding fine particles, a solar radiation shielding fine particle-containing masterbatch, a solar radiation shielding resin formed body formed into a predetermined shape using the same, and a solar radiation shielding resin laminate including the solar radiation shielding resin formed body stacked on another transparent formed body. A liquid solar radiation shielding fine particle dispersion body, including a mixture of solar radiation shielding fine particles and at least one selected from an organic solvent and a plasticizer dispersed therein or a solar radiation shielding fine particles including a powder solar radiation shielding fine particles dispersion body, obtained by removing a liquid component from the solar radiation fine particle dispersion body upon heating, dispersed in a resin component, wherein the solar radiation shielding fine particles are solar radiation shielding fine particles containing calcium lanthanum boride fine particles.

A solar radiation shielding fine particle dispersion body containing a thermoplastic resin, solar radiation shielding fine particles, a solar radiation shielding fine particle-containing masterbatch, a solar radiation shielding resin formed body formed into a predetermined shape using the same, and a solar radiation shielding resin laminate including the solar radiation shielding resin formed body stacked on another transparent formed body. A liquid solar radiation shielding fine particle dispersion body, including a mixture of solar radiation shielding fine particles and at least one selected from an organic solvent and a plasticizer dispersed therein or a solar radiation shielding fine particles including a powder solar radiation shielding fine particles dispersion body, obtained by removing a liquid component from the solar radiation fine particle dispersion body upon heating, dispersed in a resin component, wherein the solar radiation shielding fine particles are solar radiation shielding fine particles containing calcium lanthanum boride fine particles.

The instant disclosure relates to a fluorine-containing ethylene-vinyl alcohol copolymer (EVOH) resin composition as well as mixture and blend thereof. The fluorine-containing EVOH resin composition comprises EVOH and fluorine-containing particles, wherein the fluorine-containing EVOH resin composition has a total fluoride ion content ranging from 45 to 41000 ppm. The invention can reduce the adhesion of EVOH to the inside of the extruder, and effectively reduce the appearance of gel or gelled substance in subsequent finished products.

The instant disclosure relates to a fluorine-containing ethylene-vinyl alcohol copolymer (EVOH) resin composition as well as mixture and blend thereof. The fluorine-containing EVOH resin composition comprises EVOH and fluorine-containing particles, wherein the fluorine-containing EVOH resin composition has a total fluoride ion content ranging from 45 to 41000 ppm. The invention can reduce the adhesion of EVOH to the inside of the extruder, and effectively reduce the appearance of gel or gelled substance in subsequent finished products.

Provided is a thermosetting resin composition including an epoxy resin and thermally conductive particles. A thermal conductivity λ.sub.200 at 200° C. of a cured product obtained by heating the thermosetting resin composition at 200° C. for 90 minutes is 12 W/(m.Math.K) or higher. In addition, a volume resistivity R.sub.200 of the cured product at 200° C. is preferably 1.0×10.sup.10 Ω.Math.m or more. In addition, a resin sheet using this thermosetting resin composition is provided. Furthermore, a metal base substrate using this thermosetting resin composition is provided.

Provided is a thermosetting resin composition including an epoxy resin and thermally conductive particles. A thermal conductivity λ.sub.200 at 200° C. of a cured product obtained by heating the thermosetting resin composition at 200° C. for 90 minutes is 12 W/(m.Math.K) or higher. In addition, a volume resistivity R.sub.200 of the cured product at 200° C. is preferably 1.0×10.sup.10 Ω.Math.m or more. In addition, a resin sheet using this thermosetting resin composition is provided. Furthermore, a metal base substrate using this thermosetting resin composition is provided.