Abstract: In a power grid management system in which a plurality of power generation facilities, a storage battery BT capable of storing electric power generated by the plurality of power generation facilities, and a load capable of using electric power from the plurality of power generation facilities and the storage battery are connected, a storage battery CO2 emission factor unit for calculating a CO2 emission factor of the storage battery is configured to calculate a CO2 emission factor of the storage battery based on a CO2 emission factor of a power generation facility that generates electric power charged in the storage battery among the plurality of power generation facilities and an electric power quantity charged in the storage battery.

Abstract: A terminal box that can be reliably fixed to a solar cell module is provided. The terminal box includes a bottom wall facing a back surface of the solar cell module, a top wall facing the bottom wall, side walls, and a housing space defined by the bottom wall, the top wall and the side walls to accommodate a component to be mounted. The bottom wall includes a limiting wall formed in a periphery of the bottom wall to project toward the solar cell module, and a communication opening for allowing a charging space defined by the limiting wall and the bottom wall to communicate with the housing space. The limiting wall defines a gap for allowing the charging space to communicate with external space of the limiting wall.

Abstract: An expandable polyurethane composition includes (A) polyisocyanate, (B) active hydrogen containing compound including (B1) polyol and (B2) water, a catalyst, and (C) one or more plasticizers selected from the group consisting of a monoester compound, a diester compound, a triester compound, and a tetraester compound by 0.5 to 20 parts by mass relative to 100 parts by mass of the (B1) polyol. A flexible polyurethane foam can be obtained of which wet set is improved and feeling is good.

Abstract: An expandable polyurethane composition includes (A) polyisocyanate, (B) active hydrogen containing compound including (B1) polyol and (B2) water, catalysts, and (C) cross-linking agent composition. The (C) cross-linking agent composition includes at least one kind of (C1) cross-linking agent selected from (CA) ethoxylate derivative having MW of 2000 or less and (CB) ester compound having MW of 2500 or less, and (C2) non-protic polar solvent, and a mass ratio ((a+b)/c) of a sum of content a of the (CA) ethoxylate derivative and content b of the (CB) ester compound relative to content c of the (C2) non-protic polar solvent is 1/10 to 10/1. A flexible polyurethane foam can be obtained of which wet set is improved and feeling is good.

Abstract: A terminal box that can be reliably fixed to a solar cell module is provided. The terminal box includes a bottom wall facing a back surface of the solar cell module, a top wall facing the bottom wall, side walls, and a housing space defined by the bottom wall, the top wall and the side walls to accommodate a component to be mounted. The bottom wall includes a limiting wall formed in a periphery of the bottom wall to project toward the solar cell module, and a communication opening for allowing a charging space defined by the limiting wall and the bottom wall to communicate with the housing space. The limiting wall defines a gap for allowing the charging space to communicate with external space of the limiting wall.

Abstract: Hexafluoroacetone or a hydrate thereof is produced with a high yield by subjecting a 1-fluoro-4,4-bis(trifluoromethyl)-2,3,5-trioxolanyl ether compound represented by the general formula: wherein R is an alkyl group having 1 to 8 carbon atoms, an aryl group, or a benzyl group, which has been obtained by ozone oxidation of a heptafluoroisobutenyl ether compound, to a reduction reaction in the presence of a reducing agent selected from dialkyl sulfide containing an alkyl group having 3 or 4 carbon atoms, diaryl sulfide, diaryl disulfide, and diaralkyl sulfide.

Abstract: Hexafluoroacetone or a hydrate thereof is produced with a high yield by subjecting a 1-fluoro-4,4-bis(trifluoromethyl)-2,3,5-trioxolanyl ether compound represented by the general formula: wherein R is an alkyl group having 1 to 8 carbon atoms, an aryl group, or a benzyl group, which has been obtained by ozone oxidation of a heptafluoroisobutenyl ether compound, to a reduction reaction in the presence of a reducing agent selected from dialkyl sulfide containing an alkyl group having 3 or 4 carbon atoms, diaryl sulfide, diaryl disulfide, and diaralkyl sulfide.

Abstract: A thermally curable resin composition includes a linear thermally curable resin and amorphous silica fine particles having pore portions.

Abstract: An actinic energy ray-curable resin is obtained by reacting (c) an epihalohydrin with hydroxyl groups of a linear epoxy resin (A′) which is a product of the polyaddition reaction of (a) a bifunctional hydrogenated bisphenolic epoxy compound with (b) a compound having at least two carboxyl groups in its molecule to obtain a polynuclear epoxy resin (A″) having epoxy groups in its terminal and side chain and further reacting (d) an unsaturated monocarboxylic acid with an epoxy group of the polynuclear epoxy resin (A″) to introduce a photopolymerizable unsaturated group therein and further reacting (e) a polybasic acid anhydride with a hydroxyl group of the polynuclear epoxy resin to introduce a carboxyl group therein. A photocurable and thermosetting resin composition capable of being developed with an aqueous alkaline solution is obtained by mixing this actinic energy ray-curable resin with a photopolymerization initiator, a diluent, and a polyfunctional epoxy compound.