Abstract: An object is to provide a hydraulic oil composition which is excellent in oxidative stability, lubricating properties and biodegradability. A hydraulic oil composition comprising vegetable oil with a total degree of unsaturation of 0.3 or less as base oil, and comprising at least one antioxidant selected from the group consisting 6f a phenol antioxidant, an amine antioxidant and a zinc dithiophosphate antioxidant in an amount of 0.01 to 5% by mass based on the total amount of the composition.

Abstract: Gas oils comprises one or more gas oil bases obtained by subjecting specific fractions from distilled petroleum fractions to hydrogenating treatment under specific conditions and optionally a small amount of a straight kerosene or gas oil. The gas oils have a sulfur concentration of 350 ppm or below.

Abstract: Engine oil compositions comprise (A) a lubricating base oil having a kinematic viscosity at 100° C. of 2 to 6 mm2/S, a viscosity index of 120 or more, and a total aromatics content of 15 percent by mass or less and (B) a polymethacrylate-based viscosity index improver in such an amount that the composition has a kinematic viscosity at 100° C. of 4.0 to 9.3 mm2/s. Disclosed are also engine oil compositions which comprise (A) a lubricating base oil having a kinematic viscosity at 100° C. of 2 to 6 mm2/S, a viscosity index of 120 or more, and a total aromatics content of 15 percent by mass or less; (B) a polymethacrylate-based viscosity index improver in such an amount that the composition has a kinematic viscosity at 100° C. of 4.0 to 9.3 mm2/s; and (C) molybdenumdithiocarbamate.

Abstract: A method for producing an electrochromic device in which to provide in the end surface of the cell an opening having a passage formed by a butyl rubber and extending not perpendicular to the end surface, to injecting an electrolyte through the opening, to seal or closing the opening by pressing deformably the outer peripheral wall of the passage so as to abut against the inner peripheral wall and to seal secondarily the sealed portion with an adhesive.

Abstract: Gasoline additives of the present invention comprise nitrogen-containing compounds obtained by hydrolyzing a polyoxyalkylene glycol derivative resulting from polymerization of an epoxy compound using a suitable ketimine compound as a reaction initiator or by modifying the terminal ends of a polybutene compound with amine. Blending the inventive gasoline additive to a base gasoline can produce a gasoline composition which is suitable for use in direct injection gasoline engine.

Abstract: A tapered hollow shaft made of a fiber reinforced composite material, which comprises: (a) at least one angle layer consisting essentially of polyacrylonitrile-based carbon fibers having a tensile modulus ranging from 200 to 500 GPa and a tensile strength ranging from 4000 to 5600 MPa; (b) at least one straight layer consisting essentially of polyacrylonitrile-based carbon fibers having a tensile modulus ranging from 200 to 460 GPa and a tensile strength ranging from 3500 to 5600 MPa; (c) at least one reinforcing layer consisting essentially of pitch-based carbon fibers or polyacrylonitrile-based carbon fibers each having a compressive breaking strain of 1.7 to 5.0%, a tensile modulus ranging from 5 to 160 GPa, a tensile strength ranging from 500 to 3000 MPa and a density ranging from 1.5 to 1.

Abstract: A traction drive fluid comprising a naphthenic compound represented by the formula 1

Abstract: Electrochromic mirrors comprises a transparent conductive substrate, a reflective conductive substrate, and an ion conductive layer disposed therebetween wherein at least one of said substrates is provided on the peripheral portions of its conductive surface with a highly conductive layer having smaller resistance than the surface resistance of said conductive surface.

Abstract: A high-quality optical compensator for use in liquid crystal display elements can be prepared from a film comprising an end unit modified liquid crystalline polymer which has a monofunctional structural unit and which exhibits an optically positive uniaxiality, and, as needed, a liquid crystalline polymer which has a logarithmic viscosity at least 0.01 dl/g higher than that of the end unit modified liquid crystalline polymer and a glass transition point at least 5° C. higher than that of the end unit modified liquid crystalline polymer and which exhibits an optically positive uniaxiality, wherein a nematic hybrid orientation which is formed in the liquid crystal state is immobilized.

Abstract: Fuel additives comprise a compound having a group represented by the formula

Abstract: A method for producing an electrochromic mirror comprises a step of obtaining an electrochromic mirror cell by laminating two electrically conductive substrates applied with a sealant on the peripheral edge of the conductive surface; a step of sealing the cell after injecting an electrolyte therein; and annealing the cell containing the electrolyte.

Abstract: A method for producing a cell for an electrochromic mirror which comprises a step of applying a epoxy-based sealant containing beads by a method selected from the group consisting of dispensing or screen-printing on a predetermined position of the surface peripheral edge of at least one of two electrically conductive substrates; and a step of superposing the two substrates such that the width of the applied sealant is made 2 mm or less.

Abstract: A method for producing a cell for an electrochromic mirror by laminating two electrically conductive substrates which comprises the step of placing at least two plates each having at least one linear portion and provided with in a predetermined position with a punched-out portion having a shape corresponding to that of said substrate, such that each of said linear portions is located on the same line or on each of two lines offset from each other, in a juxtaposed relationship at a predetermined interval; the step of positioning said two substrates by inserting them into each of said punched-out portions; the step of shifting one of said plates holding said substrates therein over the other plate such that the substrates are located in a superposed relationship to each other; and the step of laminating said substrates.

Abstract: Diesel gas oil feedstock with 1-3 wt % sulfur can be hydrodesulfurized to a diesel gas oil with 0.05 wt % or less sulfur and a Saybolt color of +20 or higher, by defining a hydrogenation region in a fixed bed reactor with a first hydrogenation zone for dibenzothiophene, 1-, 2- and 3-methyldibenzothiophenes, a second hydrogenation zone for 4-methyldibenzothiophene and 4,6-dimethyldibenzothiophene and a third hydrogenation zone for thiols, sulfides and other sulfur-containing substances.

Abstract: A hydrogenation region in a fixed bed reactor is defined with a first, a second and a third hydrogenation zones sequentially from the entrance of the reactor, and a sulfur-containing diesel gas oil feedstock is passed through the first, second and third hydrogenation zones sequentially under conditions of a temperature of 320 to 420° C., a pressure of 5 to 15 MPa, an LHSV of 0.

Abstract: A refrigerator oil composition for use with an HFC refrigerant containing HFC-134a, HFC-125 or a mixture thereof, which comprises component (A) and component (B), said component (A) being 70 to 99% by weight of an alkylbenzene oil containing at least 60% by weight, based on the total weight of component (A), of alkylbenzenes having a molecular weight of 200 to 350 and said component (B) being 30 to 1% by weight of at least one synthetic oil containing oxygen selected from the group consisting of an ester, a polyalkylene glycol, an alkyl ether of the polyalkylene glycol, a modified compound of polyglycol, a ketone, a polyphenyl ether, a silicone, a polysiloxane and a perfluoro ether.

Abstract: A traction drive fluid comprises a tractant selected from the specific types of hydrocarbons, carboxylates and carbonate, optionally an effective amount of a base oil selected from a mineral oil and a synthetic oil and additives selected from a viscosity index improver, a ashless dispersant, a phosphorus-containing additive, a friction adjusting agent, a metallic detergent, an oxidation inhibitor, a polar additive, a corrosion inhibitor, a rubber swelling agent, a antifoamer and a colorant.

Abstract: Refrigerating machine oils comprises for use with a refrigerant containing ammonia, which comprises a polypropylene glycol monoether represented by the formula wherein R is an alkyl group having 1 to 10 carbon atoms and n is an integer to be selected such that the number-average molecular weight becomes 500 to 5,000.

Abstract: Disclosed is a plate-like carbon fiber-reinforced composite material comprising carbon fibers, wherein that the carbon fibers have a strain at compressive break of 1.7 to 5%, a tensile elastic modulus of 5 to 160 GPa, and a density of 1.5 to 1.9 g/cm3 and further in that the composite comprising said carbon fibers cause no delamination by an impact energy of less than 1.4 J/mm in the test of compression after impact in accordance with JIS K 7089.

Abstract: A lubricant composition for a refrigerating machine employing a HFC type refrigerant containing at least one selected from the group consisting of HFC-32, HFC-125 and HFC-134a, which comprises a base oil of an ester formed from a dihydric or higher polyol as an alcohol and a monobasic aliphatic acid, alone or as a mixture thereof; and additives of, based on the total amount, 1) not less than 0.01 vol % and less than 1.0 vol % of a phosphate, 2) from 0.01 to 1.0 vol % of at least one of an alkylphosphorothionate and an arylphosphorothionate and 3) from 0.01 to 1.0 vol % of an epoxy compound.