摘要:
The present invention is to provide a nonaqueous electrolytic solution capable of enhancing electrochemical characteristics in a broad temperature range, an energy storage device using the nonaqueous electrolytic solution, and a specific trifluoromethylbenzene compound. There are provided a nonaqueous electrolytic solution of an electrolyte salt dissolved in a nonaqueous solvent, which comprises at least one halogenoalkylbenzene compound represented by the following general formula (I), an energy storage device using the nonaqueous electrolytic solution, and a specific trifluoromethylbenzene compound.
(In the formula, Y 1 represents an alkoxycarbonyl group having from 2 to 8 carbon atoms, an alkenyloxycarbonyl group having from 3 to 9 carbon atoms, an alkynyloxycarbonyl group having from 4 to 9 carbon atoms, an aryloxycarbonyl group having from 7 to 12 carbon atoms, an alkanesulfonyl group having from 1 to 6 carbon atoms, or an arylsulfonyl group having from 6 to 12 carbon atoms; R x represents a halogenoalkyl group having from 1 to 4 carbon atoms; n indicates an integer of from 1 to 5. However, when Y 1 is an alkoxycarbonyl group having from 2 to 12 carbon atoms or an aryloxycarbonyl group having from 6 to 12 carbon atoms, the number of carbon atom of R x is 1. In the substituent represented by Y 1 , at least one hydrogen atom may be substituted with a halogen atom.)
摘要:
[Subject] A catalyst for polymerization of conjugated diene is provided, which facilitates manufacture of a conjugated diene polymer with a high 1,4-cis structure content, leaves less aluminum residue on polymerization, and has high activity. A method of manufacturing conjugated diene polymers using the catalyst is also provided. [Solution] A catalyst for polymerization of conjugated diene comprises (A) an yttrium compound; (B) an ionic compound including a non-coordinate anion and a cation; and (C) an organometallic compound including an element selected from the groups 2, 12 and 13 of the periodic table.
摘要:
An aqueous polyurethane resin dispersion exhibits excellent drying properties of coating films and gives coating films having high water resistance and on the other hand showing a high rate of swelling with respect to aqueous cleaning liquids to permit new application. The aqueous polyurethane resin dispersion is a dispersion of a polyurethane resin in an aqueous medium, the polyurethane resin being obtained by reacting (A) a polyurethane prepolymer obtained from (a) a polyisocyanate compound, (b) a polycarbonate polyol with a number average molecular weight of 400 to 3000, (c) an acidic group-containing polyol compound and (d) a blocking agent, with (B) a chain extender, the total content of urethane bonds and urea bonds being 7 to 15 wt%, the content of carbonate bonds being 15 to 40 wt%, the content of ether bonds being 0 wt%, the content of isocyanate groups bonded to the blocking agent being 0.2 to 2 wt%, each of these contents being based on solid contents, the acid value being 11 to 16 mg KOH/g, the weight average molecular weight being 25,000 to 60,000. A coating composition includes the dispersion. A polyurethane resin film is obtained by thermally drying a composition including the dispersion.
摘要:
Provided is a mold for casting a polycrystalline silicon ingot, and a silicon nitride powder for a mold release material thereof, a slurry containing a silicon nitride power for a mold release layer thereof, and a mold release material for casting thereof, which can be obtained in low cost and have excellent adhesion to a mold, and prevents the formation of fragments and damage when releasing a solidified silicon ingot, forming a silicon ingot with high quality and in high yield. That is, the present invention relates to a silicon nitride powder for a mold release material of a mold for casting a polycrystalline silicon ingot characterized in that the percentage of primary particles of granular crystals monodispersed in powders is not less than 95% in terms of the area ratio calculated by analysis of an SEM image.
摘要:
A thermal efficiency improvement device 10 for a heating furnace is installed in an exhaust port 12 of the heating furnace to reduce effluent heat from the exhaust port 12 to the outside. The device 10 disposed along a flow of exhaust gas passing inside the exhaust port 12 includes at least one heat-resistant fabric members 15, 16 heated by exhaust gas and supporting members 13, 14, 17, 18, 19 fixing the fabric members 15, 16 to the exhaust port 12, and puts radiant heat from the heated fabric members 15, 16 back into the heating furnace to reduce effluent heat to the outside. By installing the device in an exhaust port of an existing or newly-built heating furnace, radiant heat from the fabric members heated by exhaust gas is put back into the heating furnace, and effluent heat from the exhaust port is reduced.