Abstract: A refrigerator oil comprises an ester obtained from: pentaerythritol; and a carboxylic acid mixture comprising n-pentanoic acid in an amount of 20 to 50% by mass; n-heptanoic acid in an amount of 20 to 50 % by mass and 3,5,5-trimethylhexanoic acid in an amount of 5 to 60 % by mass, of the total amount of the carboxylic acid mixture.

Abstract: A reflection liquid crystal display device comprising a liquid crystal cell where a liquid crystal layer is provided between two opposed electrode substrates, a reflecting layer, and a cholesteric liquid crystal film, characterized in that the ratio (SCE/SCI) of the specular component excluded-refelctance (SCE) to the specular component included-reflectance (SCI) of the cholesteric liquid crystal film is 15% or more, the wavelenght bandwidth of the cholesteric selective reflection ranges from 30 mm to 150 nm, and the center wavelength of the cholesteric selective reflection is in the visible range of 380-780 nm or in the near-infared range of 800-2000 nm.

Abstract: A grease composition suitable for use with vehicle electrical equipment and vehicle engine starters is disclosed, which has excellent abrasion resistance and anti-seizure property, long service life, excellent lubricity at low temperatures, and has no adverse effect on electric contacts. The composition contains: (A) a silicon-free synthetic oil having a kinematic viscosity of 10 to 60 mm2/s at 40° C.; (B) a urea thickener; (C) melamine cyanurate; and (D) polytetrafluoroethylene.

Abstract: Lubricant compositions comprises a lubricant base oil and one or more compounds resulting the modification of a succinimide represented by formula (1) or (2) 1

Abstract: Fine particles having a thin cholesteric liquid crystal film superior in visibility for a selectively reflected light are provided. Non-liquid crystalline fine particles for nucleus are dispersed in a cholesteric liquid crystal solution, then the solvent used is removed, followed by heat-treatment and cooling, to afford fine particles coated with a thin cholesteric liquid crystal film.

Abstract: Acrylic copolymers derived from a monomer mixture containing a vinyl monomer having a benzotriazole skeleton which is high in ultraviolet absorptivity and wide in ultraviolet absorptive wavelength range, an acrylic ester and a methacrylic ester are useful for the preparation of a non-water-based coating composition forming a coating film having an ultraviolet shielding ability. Acrylic copolymers derived from the above monomer mixture further containing a vinyl monomer containing carboxyl groups are useful for the preparation of a water-based coating composition having an ultraviolet shielding ability.

Abstract: Cutting or grinding oil compositions which are suitable for use in a minimal quantity lubrication system in which a minimal quantity of an oil is supplied to the spot to be cut or ground of a work, together with air are reduced in stickiness and improved in lubricity.

Abstract: A refrigerating machine oil composition comprising an alicylic dicarboxylic acid ester compound having an alicyclic ring and two ester groups represented by formula (1) bonded to adjacent carbon atoms of the alicyclic ring: —COOR1  (1) wherein R1 represents an alkyl group having 1-18 carbon atoms, said alicyclic dicarboxylic acid ester compound being obtained by using an alcohol component comprising (a) at least one alcohol selected from a group consisting of fatty alcohols each having 1 to 5 carbon atoms; and (b) at least one alcohol selected from a group consisting of fatty alcohols each having 6 to 18 carbon atoms.

Abstract: An electrochromic element comprises an ion conduction layer between two conducting substrates, at least one of which is transparent. The ion conduction layer contains an organic compound, which has both a structure exhibiting a cathodic electorchromic characteristic and a structure exhibiting an anodic electrochromic characteristic.

Abstract: An apparatus for sterilizing a water-soluble lubricant which comprises a container in which an anode and a cathode are arranged and supplied with a voltage, a partition arranged so as to divide said container into a cathode section, into which a water-soluble lubricant is introduced, and an anode section, into which an electrically conductive material is introduced, and a diaphragm provided in at least a portion of the partition such that an electric current flows between said anode and said cathode, the cathode being an electrode generating a substance sterilizing the lubricant.

Abstract: A grease composition comprising a lubricant base oil and a metal dithiocarbamate represented by the formula (1): 1

Abstract: Carbon fiber including graphitized fiber is processed electrochemically in an acidic solution for a time sufficient to run a layer reaction such that the reaction extends to the inside of the fiber and thereafter, as required, heat-treated accurately at 100° C. or more to expand layer spacing to form multifibrous carbon fiber, with which hydrogen is brought into contact, adsorbing hydrogen in the inside of the multifibrous carbon fiber.

Abstract: A laminated transparent structure for a reflective display which is used, for example, as a head-up display of an automotive vehicle. The laminated transparent structure comprises a glass plate. A transparent layer is bonded to the glass plate. An optical rotation film is disposed between the glass plate and the transparent layer. Additionally, a hot-melt adhesive is disposed between the optical rotation film and the glass plate to bond the optical rotation film to the glass plate.

Abstract: Transmission lubricant compositions comprise a mineral oil as a base oil of which % CP and % CA defined in ASTM D 3238 are 70 or more and 3 or less, respectively, a viscosity index improver, and a friction modifier. The transmission lubricant compositions have excellent low temperature fluidity, shear stability, and durability of anti-shudder properties and thus can be used for extended periods of time.

Abstract: An engine oil composition characterized by containing a major amount of lubricating base oil and (a) 0.01 to 30% by weight of an overbasic oil-soluble metal salt prepared by use of an alkaline-earth metal borate, (b) 0.01 to 5% by weight of a molybdenum dithiocarbamate, and (c) 0.01 to 5% by weight of an antioxidant as essential components, on the basis of the total amount of the composition.

Abstract: Traction drive fluids comprise a saturated polycyclic hydrocarbon compound obtained by hydrogenating a trimeric compound of a cyclopentadiene-based condensed hydrocarbon compound resulting from the Diels-Alder reaction of cyclopentadiene and then isomerizing the resulting compound so as to have a pour point of −10° C. or below. The traction drive fluids can be used not only in driving force transmitting mechanisms but also in hydraulic pressure controlling mechanism and friction properties controlling mechanisms of wet clutches.

Abstract: A color reflection type polarizer of a high quality and easy to manufacture is disclosed. The color reflection type polarizer is fabricated by disposing an optically anisotropic medium between a reflector and a polarizer, the optically anisotropic medium having a retardation in a plane thereof.

Abstract: A method of preparing an alkenyl-substituted aromatic hydrocarbon, which comprises alkenylating an aromatic hydrocarbon with an olefin using &bgr;-diketone together with a rhodium complex catalyst in the presence of oxygen.

Abstract: Lubricant compositions comprises a lubricant base oil blended with a boron-containing ashless dispersant (A) in an amount of 0.035 or more percent of boron by mass, and an alkaline earth metal sulfonate having a total base number of 50 to 500 mgKOH/g (B) in an amount of 0.01 or more percent of alkaline earth metal by mass, all the percentages being based on the total mass of the composition and if necessary a phosphorus additive. The lubricant compositions are superior in effect to enhance the dynamic- and static-friction coefficients in a wet clutch.

Abstract: A lubricating oil composition having an excellent sludge formation inhibiting effect and being suitable for use as an engine oil is provided. The lubricating oil composition includes: a lubricating base oil, (A) 0.5 to 20% by mass of acylated bissuccinimide, (B) 0.05 to 0.3% by mass of zinc dithiophosphate in terms of the phosphorus content, and (C) 0.5 to 4.0% by mass of metallic detergent in terms of the sulfated ash content, based on the total mass of the composition.