Abstract: A phosphor powder which is represented by a general formula Mx(Si, Al)2(N, O)3±y (where M is Li and one or more alkaline earth metal elements and 0.52?x?0.9 and 0.06?y?0.36 are satisfied) and in which a part of M is substituted with a Ce element, in which the phosphor powder includes phosphor particles in which a Si/Al atomic ratio is equal to or more than 1.5 and equal to or less than 6, an O/N atomic ratio is equal to or more than 0 and equal to or less than 0.1, 5 to 50 mol % of M is Li, and 0.5 to 10 mol % of M is Ce, and a diffuse reflectance X1 with respect to light having a wavelength of 700 nm is equal to or more than 88% and equal to or less than 99.9%.

Abstract: A rubber composition of a first embodiment contains 100 parts by mass of a chloroprene polymer, more than 0 parts by mass and 25 parts by mass or less of a diene-based polymer having an epoxy group, and 0.3 to 1.8 parts by mass of an organic peroxide, in which the chloroprene polymer includes a copolymer of chloroprene. A rubber composition of a second embodiment contains 100 parts by mass of a chloroprene polymer, more than 0 parts by mass and 25 parts by mass or less of a diene-based polymer having an epoxy group, and 0.3 to 1.8 parts by mass of an organic peroxide, in which the chloroprene polymer includes a homopolymer of chloroprene.

Abstract: A chloroprene-based rubber composition capable of obtaining a vulcanizate having excellent compression set resistance and excellent heat resistance, a vulcanizate of the chloroprene-based rubber composition, and a vulcanized molded body of the chloroprene-based rubber composition having excellent compression set resistance and heat resistance. A chloroprene-based rubber composition including 100 parts by mass of a chloroprene-based rubber, 0.1 to 10 parts by mass of an organic peroxide, and 0.1 to 40 parts by mass of a compound having one or more thioether structures is provided.

Abstract: One aspect of the present disclosure provides a boron nitride powder containing agglomerated particles formed by agglomeration of primary particles of hexagonal boron nitride, in which a degree of purity is 98.5% by mass or more, and a number of particles containing carbon is 10 or less per 10 g of the boron nitride powder.

Abstract: A rubber composition containing 100 parts by mass of a chloroprene polymer, more than 0 parts by mass and 25 parts by mass or less of a diene-based polymer having an epoxy group, and 0.2 to 2.5 parts by mass of at least one selected from the group consisting of a thiourea compound and a thiazolidinethione compound. A vulcanizate and a vulcanized molded article of the rubber composition.

Abstract: A rubber foam composition containing a sulfur-modified chloroprene rubber and a chemical foaming agent, in which the sulfur-modified chloroprene rubber has a functional group A represented by specific General Formula (A) and positioned at a molecular terminal, in the sulfur-modified chloroprene rubber, a mass ratio B/A of a content of a functional group B represented by specific General Formula (B) and positioned at a molecular terminal with respect to a content of the functional group A is 12.00 or less, a total amount of the functional group A and the functional group B is 0.10 to 1.00% by mass, and a content of the chemical foaming agent is 3 to 16 parts by mass with respect to a total of 100 parts by mass of the sulfur-modified chloroprene rubber, a thiazole compound, and a dithiocarbamic acid-based compound.

Abstract: The thermally conductive resin composition containing: 5 to 95 parts by weight of a copolymer (a) having a (meth)acrylic monomer unit A having an anionic group, a (meth)acrylic monomer unit B having a cationic group, and a silicone (meth)acrylic monomer unit C; 95 to 5 parts by weight of a silicone resin (b); and 500 to 3000 parts by weight of a thermally conductive filler (c) having a thermal conductivity of 10 W/mK or more, wherein a total content of the copolymer (a) and the silicone resin (b) is 100 parts by weight, and the silicone resin (b) includes a crosslinked silicone resin (b-1), wherein a content of the crosslinked silicone resin (b-1) is 5 to 100 mass % based on the total amount of the silicone resin (b).

Abstract: Provided are a measuring reagent and a method for accurately measuring a high concentration of ferritin. The ferritin measuring reagent and the method for measuring ferritin are characterized by using liver-derived ferritin as a standard-solution raw material.

Abstract: The thermally conductive resin composition containing: 5 to 95 parts by weight of a copolymer (a) having a (meth)acrylic monomer unit A having an anionic group, a (meth)acrylic monomer unit B having a cationic group, and a silicone (meth)acrylic monomer unit C; 95 to 5 parts by weight of a silicone resin (b); and 500 to 3000 parts by weight of a thermally conductive filler (c) having a thermal conductivity of 10 W/mK or more, wherein a total content of the copolymer (a) and the silicone resin (b) is 100 parts by weight.

Abstract: An object of the present invention is to provide a composition for a positive electrode having high binding properties and high flexibility. A composition for a positive electrode, comprising: a graft copolymer-based resin; a polyvinylidene fluoride-based resin, wherein the graft copolymer-based resin includes a graft copolymer in which a monomer, having (meth)acrylonitrile as a main component, is graft-copolymerized with a polyvinyl alcohol. The graft copolymer-based resin optionally further includes at least one of a (meth)acrylonitrile-based non-graft polymer and a polyvinyl alcohol homopolymer. And, a slurry for a positive electrode comprising the composition. A positive electrode comprising a metal foil and a coating film of the slurry. The composition preferably has a mass ratio of the graft copolymer-based resin and the polyvinylidene fluoride resin, which is: graft copolymer-based resin/polyvinylidene fluoride-based resin=2/8 to 8/2.

Abstract: Provided are an insulating material for a circuit substrate, which has excellent dielectric characteristics in a high frequency area, has low coefficients of linear thermal expansion all in a MD direction, a TD direction, and a ZD direction, is easily manufactured and has excellent productivity, and a method for manufacturing the same and a metal foil-clad laminate. An insulating material for a circuit substrate, comprising a laminate having a thermoplastic liquid crystal polymer film and a woven fabric of an inorganic fiber, wherein the thermoplastic liquid crystal polymer film contains an inorganic filler, and the laminate is a dry laminate in which the thermoplastic liquid crystal polymer film and the woven fabric are thermocompression bonded.

Abstract: Provided are a novel insulating material for a circuit substrate and a novel metal foil-clad laminate, and the like, in which the anisotropy of coefficients of linear thermal expansion in a MD direction, a TD direction, and a ZD direction is reduced. An insulating material for a circuit substrate, comprising a thermoplastic liquid crystal polymer film, wherein ratios of average coefficients of linear thermal expansion in a MD direction, a TD direction, and a thickness direction (CTEMD, CTETD, CTEZ) at 23 to 200° C., as measured by a TMA method according to JIS K7197, satisfy the following expressions (I) to (III): 0.5?CTEMD/CTETD?1.5 ??(I) 0.10?CTEMD/CTEZ?1.00 ??(II) 0.10?CTETD/CTEZ?1.00 ??(III).

Abstract: One aspect of the present disclosure is a method for evaluating adhesiveness performance and heat radiation performance of a composite including a porous sintered ceramic component and a semi-cured product of a resin filled into pores of the sintered ceramic component, including a step of emitting ultraviolet rays to the surface of the semi-cured product of the composite; a step of measuring an emission intensity of fluorescence generated from the semi-cured product; and a step of evaluating adhesiveness performance and heat radiation performance of the composite using the value of the emission intensity.

Abstract: The present invention provides a method of assisting a determination of whether a subject is susceptible to infection by norovirus or whether a subject is susceptible to post-infection worsening, wherein this method contains a step of measuring the concentration of IgG antibody that is present in a sample originating from within the oral cavity of the subject.

Abstract: One aspect of the present disclosure provides a composite sheet including a porous sintered ceramic component having a thickness of less than 2 mm and a resin filled into pores of the sintered ceramic component, wherein the curing rate of the resin is 10 to 70%.

Abstract: A rubber composition, by which a vulcanizate having excellent vulcanization speed, abrasion resistance and low temperature rise can be obtained, is provided. A rubber composition including 100 parts by mass of a chloroprene-based rubber, 20 to 80 parts by mass of silica, 1 part by mass or more and less than 20 parts by mass of a hydrate, and 0.3 to 1.4 parts by mass of an organic peroxide, wherein the rubber composition includes 0.5 to 15 parts by mass of a silane coupling agent having a double bond in a structure of the silane coupling agent with respect to 100 parts by mass of the silica.

Abstract: A composition comprises: a resin component including an olefin-aromatic vinyl compound-aromatic polyene copolymer satisfying all the following conditions (1) to (4): (1) a number average molecular weight of the copolymer is 500 or more and 100000 or less; (2) the aromatic vinyl compound monomer is an aromatic vinyl compound having 8 or more and 20 or less carbon atoms, and a content of a unit of the aromatic vinyl compound monomer is 0 mass % or more and 70 mass % or less; (3) the aromatic polyene is one or more selected from polyenes having 5 or more and 20 or less carbon atoms and having a plurality of vinyl groups and/or vinylene groups in the molecule, and a content of the vinyl groups and/or the vinylene groups derived from the unit of the aromatic polyene is 1.

Abstract: One aspect of the present disclosure provides a boron nitride powder containing agglomerated particles formed by agglomeration of primary particles of hexagonal boron nitride, in which a degree of purity is 98.5% by mass or more, and a number of particles having a magnetizing ability is 10 or less per 10 g of the boron nitride powder.

Abstract: One aspect of the present disclosure provides a boron nitride powder containing agglomerated particles formed by agglomeration of primary particles of hexagonal boron nitride, in which a degree of purity is 98.5% by mass or more, and a concentration of elutable impurities is 700 ppm or less.

Abstract: A magnesium oxide powder, including a specific magnesium oxide particle, can suppress an increase in viscosity when a resin is filled therewith and can realize high thermal conduction of a resin composition including the resin, and a filler composition, a resin composition, and a heat dissipation part including the magnesium oxide powder. The magnesium oxide powder includes a magnesium oxide particle, wherein an oil absorption of the magnesium oxide particle in the case of linseed oil measured according to JIS K 5101-13-1 is 2.5 mL/10 g or less.