Abstract: The present invention provides a mask blank which comprises a substrate made of a synthetic quartz glass and a light-shielding film laminated on a surface of the substrate and is for use in a semiconductor device production technique employing an exposure light wavelength of 200 nm or shorter, wherein the mask blank has a birefringence, as measured at a wavelength of 193 nm, of 1 nm or less per substrate thickness. According to the present invention, mask blanks suitable for use in the immersion exposure technique and the polarized illumination technique are provided.

Abstract: To provide an adhesive composition having high durability even though it contains a dye. Further, to provide an adhesive film to obtain an optical filter which has no resin film containing a near infrared absorptive dye and which is excellent in durability. Still further, to provide an optical filter which has no resin film containing a near infrared absorptive dye and which is excellent in durability. An adhesive composition comprising a phthalocyanine dye, a dithiol complex and an acrylic adhesive having an acid value of at most 10 mgKOH/g. An adhesive film having a film and an adhesive layer comprising the above adhesive composition formed on the film. An optical filter having a substrate and at least one film bonded to the substrate, which has an adhesive layer comprising the above-described adhesive composition formed either between the film and the substrate or between a plurality of films.

Abstract: To provide a process for producing a polymer, whereby a less colored polymer can be obtained without reducing vinyl monomers by a side reaction, a less colored coating composition, and a coated article having a less colored coating film. A polymer is used which is obtained by a process for producing a polymer, which comprises a step of polymerizing a vinyl monomer mixture containing a quinone compound to obtain a polymer, and a step of adding an oxidizing agent or a reducing agent to a liquid containing the polymer.

Abstract: A method for bending a glass sheet is provided wherein the glass sheet is put on a bending surface of a frame unit to be preliminarily bent by gravity before the glass sheet is pressed by an upper mold and frame unit. The method is utilized for controlling the amount of preliminary bending so as to control deformation of the glass sheet caused by the preliminary bending and pressing occurs on the preliminary bent glass sheet by the upper mold and the frame unit.

Abstract: The invention relates to a coating agent composition comprising an isocyanate-group-containing prepolymer obtained by reacting a polyol comprising a polyoxyalkylene polyol having 2-4 hydroxyl groups on average, an oxyethylene group content of 85-100% by mass based on all oxyalkylene groups (100% by mass), and an arithmetic-average molecular weight of 800-2,500 with an alicyclic isocyanate and/or an aliphatic isocyanate in the presence of an organic acid bismuth salt catalyst, the isocyanate(s) being used in such an amount as to result in an isocyanate index of 150-300. The invention can provide a coating agent composition which forms a coating film or film having moisture permeability, excellent in mechanical properties and yellowing resistance, having laundering durability and resistance to sweat deterioration, and containing no organotin compounds.

Abstract: The invention provides a process for producing a synthetic quartz glass, comprising: (a) depositing fine quartz glass particles synthesized by flame hydrolysis of a glass-forming material, on a substrate, to form a porous quartz glass base; (b) presintering the porous quartz glass base; (c) heat-treating the presintered porous quartz glass base by holding it under vacuum at a temperature in the range of from 1,100° C. to below the vitrification temperature for a certain time period; and (d) heating the thus heat-treated porous quartz glass base to a temperature not lower than the vitrification temperature to obtain a synthetic quartz glass. According to the process for synthetic quartz glass production of the invention, a synthetic quartz glass having a reduced OH group amount and a uniform OH group concentration can be obtained. From the synthetic quartz glass, an optical member having excellent optical properties can be obtained.

Abstract: A process for polishing a glass substrate, which enables to polish a glass substrate having a large waviness formed by mechanical polishing, to have a surface excellent in flatness, is provided. A process for polishing a glass substrate, comprising a step of measuring the surface profile of a mechanically polished glass substrate to identify the width of waviness present in the glass substrate, and a step of applying dry etching using a beam having a beam size in FWHM (full width of half maximum) value of at most the above size of waviness, to polish the surface of the glass substrate.

Abstract: To provide an adhesive composition which is prevented from change in color and color degradation after the moisture resistance test in a state where a copper mesh is bonded. Further, to provide an optical filter which is excellent in moisture resistance and which is prevented from change in color and color degradation. The adhesive composition of the present invention is an adhesive composition (first adhesive 14) to bond a copper mesh 12 to an adherend (antireflection film 11), and contains an acrylic adhesive having an acid value of at most 7 mgKOH/g and a dye containing no hydroxyl group nor amino group. In the adhesive composition of the present invention, the dye is preferably at least one dye selected from the group consisting of an anthraquinone dye and a porphyrin dye. The optical filter 10 of the present invention comprises a copper mesh 12 bonded to an adherend (antireflection film 11) by means of the above adhesive composition (first adhesive 14).

Abstract: To provide a method for producing carbonyl fluoride by employing carbon monoxide and fluorine as starting materials, without such a problem as vigorous heat generation or a decrease in the reaction yield due to a side reaction. A method for producing carbonyl fluoride, which comprises introducing carbon monoxide gas and fluorine gas into a liquid, and letting carbon monoxide and fluorine react with each other to obtain carbonyl fluoride.

Abstract: Provided is a liquid crystalline compound which has a large value of refractive index anisotropy, exhibits a liquid crystal phase in a wide temperature range, and is stable under use conditions. It is a liquid crystalline compound represented by the following formula (1): wherein the symbols in the formula have the following meanings: R1, R2: each independently, an alkyl group, an alkenyl group, an alkoxy group, a halogen atom or a cyano group, wherein at least one hydrogen atom in each of the alkyl, alkenyl and alkoxy groups may be replaced with a chlorine or fluorine atom; ring A, ring B: each independently, a trans-1,4-cyclohexylene group or a 1,4-phenylene group, wherein a hydrogen atom in each of these rings may be replaced with a chlorine atom, fluorine atom or methyl group; X1, X2: each independently, a hydrogen or fluorine atom; n: 0 or 1.

Abstract: A substrate with transparent conductive film which is suitable for laser patterning and can be produced with high productivity, is provided. A substrate with transparent conductive film, which comprises a glass substrate and a transparent conductive film composed mainly of indium oxide, formed thereon, wherein the average domain diameter at the surface of the transparent conductive film is at most 150 nm. Such transparent conductive film is formed by sputtering at a substrate temperature of at most 250° C. during the film deposition.

Abstract: To provide a secondary circulation cooling system using a composition which is less influential over the environment as a secondary coolant, is non-inflammable, has a small pressure drop particularly at a low temperature and has a large heat transfer coefficient. A secondary circulation cooling system comprising a primary cooling means 1 using a primary coolant, a secondary circulation cooling means 13 using a secondary coolant and a heat exchange means 6 to carry out heat exchange between the primary coolant and the secondary coolant, characterized in that a composition comprising a fluorinated ether such as CF2HCF2OCH2CF3, and an alcohol such as ethanol, is used as the secondary coolant.

Abstract: It is to provide a process for producing a float bath bottom refractory brick which can suppress a reaction with Na2O from glass at the surface of the refractory brick and thereby prevents flaking phenomena, as a refractory brick to be used for a float bath bottom for production of plate glass by float process. A process for producing a float bath bottom refractory brick using a clayey material comprising from 30 to 45 mass % of Al2O3 and from 50 to 65 mass % of SiO2 and having a Na2O content of at most 1 mass %, wherein a potassium compound is added so that the K2O content in the float bath bottom refractory brick to be produced would be from 2 to 4 mass %.

Abstract: A process for producing a substratum with conductive film excellent in surface smoothness, is provided which does not require complicated steps after film-forming such as heating treatment, polishing of film surface or oxygen plasma treatment after film-forming. The present invention provides a substratum with conductive film comprising a substratum and a conductive film containing tin-doped indium oxide as the main component, wherein a foundation film containing zirconium oxide doped with yttrium oxide as the main component is formed on the substratum side of the conductive film, and wherein the content of yttrium oxide in the foundation film is preferably from 0.1 to 50 mol % based on the total amount of Y2O3 and ZrO2.

Abstract: To provide an ethylene/tetrafluoroethylene copolymer molding, and a method for producing the ethylene/tetrafluoroethylene copolymer molding in which the operation for the production is simple, and the surface can be highly hydrophilized. An ethylene/tetrafluoroethylene copolymer molding is produced by conducting discharge treatment of a surface of a molding to be treated, under reduced pressure in a mixed gas containing oxygen and a hydrocarbon, said surface being made of a material comprising an ethylene/tetrafluoroethylene copolymer as the main component.

Abstract: Provided is a crystallized glass spacer for a field emission display resistant to charging with application of an electric field and resistant to chipping or cracking thanks to high fracture toughness. An SiO2—TiO2-based glass is subjected to a reduction and crystallization heat treatment at 600-900° C. in a hydrogen atmosphere or in a mixed atmosphere of hydrogen and nitrogen, to obtain a crystallized glass spacer for FED consisting essentially of, in molar percentage, SiO2: 20-50%, TiO2: 25-45%, MgO+CaO+SrO+BaO+ZnO: 20-50%, B2O3+Al2O3: 0-10% and ZrO2: 0-10%, and containing as a principal crystal at least one crystal selected from BaXTi8O16-based crystals (X=0.8-1.5), Ba2TiSi2O8-based crystals and TiO2-based crystals.

Abstract: A conventional problem in which inspection performance deteriorates as a transparent plate material becomes larger is solved.

Abstract: A flexible polyurethane foam excellent in the vibration characteristics and the load-deflection characteristics, a process for producing the flexible polyurethane foam stably and inexpensively, and a seat for an automobile excellent in posture-stability performance and supported feeling with little bottom-hitting feeling, are provided. When a polyoxyalkylene polyol and a polyisocyanate compound are reacted in the presence of a urethane-forming catalyst, a blowing agent and a foam stabilizer, a predetermined amount of a compound of the following formula (1) is used: wherein the average of n is from 13 to 2,100.

Abstract: A process for producing a flexible polyurethane foam having a low transmissibility at resonance frequency, of which a rebound resilience can be suppressed, without using a foam stabilizer, is provided. In production of a flexible polyurethane foam; an isocyanate containing TDI as the main component is used as an isocyanate; and a polyol containing from 20 to 50 mass % of a polyol (A) having an oxyethylene group content of from 10 to 20 mass % and having a hydroxyl value of from 15 to 56 mgKOH/g, which is obtained by subjecting propylene oxide to ring opening addition polymerization to an initiator by using a double metal cyanide complex catalyst, and further subjecting ethylene oxide to ring opening addition polymerization by using an alkali metal compound catalyst or a phosphazenium catalyst, is used as a polyol.

Abstract: To provide a process for producing CeO2 fine particles having high crystallinity, being excellent in uniformity of composition and particle size and having a small particle size, and a polishing slurry containing such fine particles. A process for producing CeO2 fine particles, which comprises a step of obtaining a melt containing, as represented by mol % based on oxides, from 5 to 50% of CeO2, from 10 to 50% of RO (wherein R is at least one member selected from the group consisting of Mg, Ca, Sr and Ba) and from 30 to 75% of B2O3, a step of quenching the melt to obtain an amorphous material, a step of precipitating CeO2 crystals from the amorphous material, and a step of separating the CeO2 crystals from the obtained crystallized product, in this order. A polishing slurry containing from 0.1 to 20 mass % of such fine particles.