Abstract:
PROBLEM TO BE SOLVED: To provide an electric insulating oil composition improved in dielectric breakdown voltage, and excellent in insulation performance while hardly causing precipitation of crystals particularly at -50°C.SOLUTION: An electric insulating oil composition contains: 1-phenyl-1-xylylethane and/or 1-phenyl-1-ethylphenylethane in an amount of 30-70 mass% in total; methylnaphthalene and/or dimethylnaphthalene in an amount of 1-30 mass% in total; and a fused or unfused bicyclic and/or tricyclic aromatic compound other than the above-mentioned compounds in an amount of 29-69 mass%, the aromatic compound having a boiling point of 220°C or above and 350°C or below.
Abstract:
PROBLEM TO BE SOLVED: To provide a high-heat-resistance heat medium composition.SOLUTION: A heat medium composition comprises (A) biphenyl, (B) diphenylene oxide and (C) at least one aromatic compound selected from six ingredients consisting of naphthalene, phenanthrene, anthracene, o-triphenyl, m-triphenyl and p-triphenyl, in a content of (A) biphenyl of 15-50 mass%, a content of (B) diphenylene oxide of 10-40 mass% and a content of (C) the aromatic compound(s) of 20-75 mass%, and is free of diphenyl ether.
Abstract:
PROBLEM TO BE SOLVED: To provide an electrical insulation oil composition excellent in low temperature characteristics, hydrogen gas absorbability and withstand voltage characteristics, and having no adverse influence on living bodies.SOLUTION: The electrical insulation oil composition includes [A] 1,1-diphenylethane in an amount of 30-70 mass%, [B] at least one component selected from among four components: (a) 1-phenyl-1-methylphenylethane; (b) 1-phenyl-1-xylylethane; (c) 1-phenyl-1-ethylphenylethane; and (d) benzyltoluene, in a total amount of 30-70 mass%, and further [C] 1,2-diphenylethane in an amount of 0.1-2 mass% and/or diphenylmethane in an amount of 0.1-13 mass%.
Abstract:
PROBLEM TO BE SOLVED: To provide a solvent for a color coupler which dissolves a color coupler at high density and has a high boiling point and low viscosity.SOLUTION: A solvent for a color coupler containing 1-phenyl-2-ethylphenylethane(1, 2-PEPE) and 1-phenyl-1-ethylphenylethane(1, 1-PEPE) is used.
Abstract:
PROBLEM TO BE SOLVED: To provide a color coupler for a pressure sensitive copying paper, which is excellent in solubility of a color coupler, emits low odor, is non-toxic and has excellent properties as a solvent of the color coupler of a pressure sensitive copying material.SOLUTION: The solvent for the color coupler for the pressure sensitive copying paper is a color coupler solvent containing a mixture of 1-phenyl-1-ethylphenylethane (PEPE), 1-phenyl-1-xylylethane (PXE) and 1, 1-diphenylethane (1, 1-DPE), wherein the content of the 1, 1-DPE is at least 0.1 mass% and at most 25 mass%.
Abstract:
PROBLEM TO BE SOLVED: To provide a process for producing a regenerated hydrotreating catalyst which can stably produce a regenerated hydrotreating catalyst having high activity from a spent hydrotreating catalyst, and to provide an economical process for producing a petrochemical product using a regenerated hydrotreating catalyst.SOLUTION: The process for producing a regenerated hydrotreating catalyst includes regenerating a spent hydrotreating catalyst in a predetermined temperature range. The predetermined temperature range is from T1-30°C to T2+30°C, wherein T1 and T2 are determined by subjecting the spent hydrotreating catalyst to differential thermal analysis, converting the temperature differences observed in the temperature range of 100-600°C into differences in electromotive force, then differentiating the differences in electromotive force twice by temperature to obtain the smallest extreme value and the second smallest extreme value, and taking the temperature corresponding to the extreme value located on the lower-temperature side as T1 and the temperature corresponding to the extreme value located on the higher-temperature side as T2.
Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing an olefin dimer using a solid phosphate catalyst. SOLUTION: This method for producing the olefin dimer is characterized by comprising a first process for introducing the first mixture comprising an olefin in an amount of 0 to 15 mass% based on the total amount of the mixture, water in an amount below a saturated water content in a contact condition and equal to or above 10 mass ppm, and a prescribed solvent, into a reactor receiving a solid phosphate catalyst prepared by supporting phosphoric acid on inorganic support particles, and then heating and pressurizing the mixture to give a prescribed contact condition in the reactor, in the contact state of the solid phosphate catalyst with the first mixture; and a second process for introducing the second mixture comprising the olefin, and water in an amount below the saturated water content at a reaction temperature and equal to or larger than 10 mass ppm, into the reactor after the first process, and subjecting to an olefin-dimerizing reaction in the presence of the solid phosphate catalyst at a reaction temperature of 55 to 300°C to obtain the reaction product containing the olefin dimer. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing jointly 1,3-butadiene and C6-C8 aromatic hydrocarbons without requiring a new facility.SOLUTION: A hydrocarbon compound containing compounds represented by formula (1) and/or formula (2) is pyrolyzed, to thereby producing jointly 1,3-butadiene and C6-C8 aromatic hydrocarbons at high yield. (In formula (1) and formula (2), each R represents hydrogen, a methyl group, an ethyl group or a vinyl group, respectively independently).
Abstract:
PROBLEM TO BE SOLVED: To provide a solvent which dissolves a color former for pressure-sensitive copying paper by high density, and to provide a color former solution with dissolving stability.SOLUTION: The subject is solved by using a solvent for color former for pressure-sensitive copying paper which comprises a predetermined quantity of 1-phenyl-1-ethyl phenyl ethane (PEPE) and 1-phenyl-1-xylyl ethane (PXE).