Abstract: There is provided a porous film, comprising a polymer having a thermal decomposition initiation temperature of 200° C. or more and a raw material monomer thereof, wherein a ratio of the raw material monomer is 0.05% by weight or more and 5% by weight or less based on the total weight of the polymer and the raw material monomer; and a laminated porous film, wherein the porous film and a porous film containing a thermoplastic resin are laminated.

Abstract: The present invention provides a process for producing supported ruthenium oxide comprising a step of supporting a ruthenium compound on a carrier and then calcining it in an oxygen-containing gas atmosphere, wherein the ruthenium compound has a total of each content of sodium, calcium, magnesium, iron, silicon, aluminum, copper and zinc of 500 weight ppm or less based on the amount of ruthenium.

Abstract: A method for producing a polymer electrolyte membrane of the present invention include the step of modifying a polymer electrolyte membrane which is salt-substituted with a polyvalent cation, by a modification treatment selected from a heat treatment, an active energy ray irradiation treatment and a discharge treatment, and preferably include the step of treating the modified polymer electrolyte with acid. This method allows a polymer electrolyte membrane capable of achieving methanol barrier properties and the proton conductivity at a high level.

Abstract: The present invention provides a sulfonium compound represented by the formula (I): wherein Q1 and Q2 each independently represent a fluorine atom or a C1-C6 perfluoroalkyl group, and A+ represents an organic counter ion.

Abstract: The present invention relates to a method for producing 3-methyl-2-butenyl acetate which comprises reacting 3-methyl-2-buten-1-ol with acetic anhydride in the presence of an inorganic base catalyst and a method for producing purified 3-methyl-2-butenyl acetate which comprises subjecting crude 3-methyl-2-butenyl acetate to a step (A) of contacting it with an aqueous solution of an alkali metal hydrogen sulfite, or a step (B) of contacting it with an aqueous solution of a base, or both steps (A) and (B).

Abstract: A process for regenerating a catalyst consisting of a mixed oxide having molybdenum, bismuth and iron used for preparing an unsaturated aldehyde and/or an unsaturated carboxylic acid by catalytically oxidizing propylene, isobutylene and/or tert.-butanol with molecular oxygen in a gas phase, in which the catalyst is regenerated by thermally treating the deteriorated catalyst in an atmosphere of a gas containing molecular oxygen at a temperature of 200 to 500° C., and then thermally treating the catalyst in the presence of a reducing compound at a temperature of 200 to 500° C.

Abstract: It is provided that a method for producing an optically active bisamidoalcohol compound represented by the formula (3): wherein R1 represents a C1-6 alkyl group, an optionally substituted phenyl group, an optionally substituted aralkyl group or a hydrogen atom, or two R1s, which are bonded to the same carbon atom, are bonded to form a ring together with the carbon atom to which they are bonded, R2 represents a C1-6 alkyl group, an optionally substituted phenyl group, a 1-naphthyl group, a 2-naphthyl group or an optionally substituted aralkyl group, R3 and R4 are the same or different, and each represents a hydrogen atom or C1-3 alkyl group, m represents an integer of 0 to 2, and * represents an asymmetric center, which comprises reacting an optically active aminoalcohol compound represented by the formula (1): wherein R1, R2 and * are as defined above, with a diester compound represented by the formula (2): wherein R3, R4 and m are as defined above and R5 represents a C1-3 alkyl group,

Abstract: The present invention provides a salt represented by the formula (I): wherein Q1 and Q2 each independently represent a fluorine atom or a C1-C6 perfluoroalkyl group, T represents a methylene group or a carbonyl group, R represents an adamantyl group substituted with at least one selected from the group consisting of a C1-C4 alkyl group, a C1-C4 alkoxy group, a hydroxyl group, a hydroxymethyl group, a cyano group and an oxo group, and A+ represents an organic counter ion. The present invention further provides a chemically amplified resist composition comprising the salt represented by the above-mentioned formula (I).

Abstract: The present invention provides a chemically amplified resist composition comprising: a resin (A) which contains no fluorine atom and a structural unit (a1) having an acid-labile group in a side chain, a resin (B) which contains a structural unit (b2) having a fluorine-containing group in a side chain and at least one structural unit selected from the group consisting of a structural unit (b1) having an acid-labile group, a structural unit (b3) having a hydroxyl group and a structural unit (b4) having a lactone structure in a side chain, and an acid generator, wherein the amount of the resin (B) is 2 parts by weight or less per 100 parts by weight of the resin (A).

Abstract: Provided is a polymer having a structural unit expressed by the following general formula (1a): wherein a1 represents an integer of 1 or more; Ar1 represents a divalent aromatic group having an ion-exchange group, and may have a substituent other than an ion-exchange group; Ar0 represents a divalent aromatic group that may have a substituent; when a1 is 2 or more, a plurality of Ar0s may be the same or different from each other; and X represents a divalent electron withdrawing group.

Abstract: A thermoplastic elastomer is provided that includes a propylene-based resin and an ethylene-?-olefin copolymer rubber, and has a crystallization time at 130° C. measured by differential scanning calorimeter (DSC) of from 250 to 1,000 sec. There are also provided a method for producing a molded body, the method including a step of preparing the thermoplastic elastomer composition and a step of injection molding the thermoplastic elastomer composition, and a molded body produced by the method.

Abstract: A method for producing propylene oxide comprising a step of reacting hydrogen peroxide with propylene in the presence of an epoxidation catalyst in a liquid phase to produce propylene oxide and a step of recovering a recyclable constituent in a vent gas generated in the above step by absorbing the recyclable constituent in a solvent containing a nitrile.

Abstract: An object of the present invention is to provide a light diffuser plate (1) which can illuminate the front side more brightly when incorporated in a surface light source (3) constituting a transmissive image display (2). The light diffuser plate of the present invention comprises a transparent resin and a light diffuser dispersed in the transparent resin, wherein the transparent resin is a transparent resin which has a light transmittance [T600] at a wavelength of 600 nm of 85% or more measured with respect to a thickness of a 2 mm thick plate-shaped specimen, and a ratio [T365/T600] of a light transmittance [T365] at a wavelength of 365 nm to the light transmittance [T600] is 0.90 to 0.99. The transparent resin is polystyrene or the like, an average particle diameter of the light diffuser is from 0.5 to 5 ?m, an absolute value [|?n|] of a difference in a refractive index between the light diffuser and the transparent resin is 0.05 or more, an amount of the light diffuser is from 0.

Abstract: The present invention provides a liquid crystal display device capable of achieving natural and high-quality color display without reddish color shift, not only when viewed in the normal direction but also when viewed obliquely. A liquid crystal display device 1 of the present invention includes a light diffuser plate 3, a light source 2 disposed on the back side of the light diffuser plate 3, and a liquid crystal panel 30 disposed on the front side of the light diffuser plate 3, wherein the light diffuser plate 3 is constituted by dispersing light diffusing particles in a transparent material, and the absolute value of a difference ?n in the refractive index between the transparent material and the light diffusing particles and a 50% cumulative particle diameter D50 (?m) of the light diffusing particles satisfy a relation 0.01??n×D50?0.25 or 0.61??n×D50?0.75.

Abstract: The present invention provides a chemically amplified resist composition comprising: a resin (A) which contains no fluorine atom and a structural unit (a1) having an acid-labile group in a side chain, a resin (B) which contains a structural unit (b2) having a fluorine-containing group in a side chain and at least one structural unit selected from the group consisting of a structural unit (b1) having an acid-labile group, a structural unit (b3) having a hydroxyl group and a structural unit (b4) having a lactone structure in a side chain, and an acid generator, wherein the content of the structural unit (b1) based on the total units of the resin (B) is less than 10 mol %.

Abstract: The present invention provides a polymer comprising a structural unit represented by the formula (Ia) or (Ib): wherein R1 represents a hydrogen atom etc., R2 represents a linear, branched chain or cyclic C1-C8 alkyl group, R3 represents a methyl group, n represents an integer of 0 to 14, Z1 represents a single bond etc., k represents an integer of 1 to 4, R4 and R5 each independently represents a hydrogen atom etc., and m represents an integer of 1 to 3, a structural unit represented by the formula (II): wherein R6 and R7 each independently represents a hydrogen atom etc., R8 represents a methyl group, R9 represents a hydrogen atom etc., Z2 represents a single bond etc., k? represents an integer of 1 to 4, Z? represents a group capable to eliminate by an action of an acid, and a structural unit represented by the formula (III): wherein R10 represents a carboxyl group etc., l? represents an integer of 0 to 3, Z3 represents a single bond etc., and k? represents an integer of 1 to 4.

Abstract: The present invention relates to a method of protecting a hydroxyl group, which includes reacting a hydroxyl group-containing compound with a compound represented by the formula (I): wherein R is a phenyl group optionally having substituent(s), an alkyl group optionally having substituent(s) or a benzyl group optionally having substituent(s), and X is a halogen atom, in the presence of an acid catalyst to substitute the hydrogen atom of the hydroxyl group of the hydroxyl group-containing compound with a protecting group represented by the formula (II): wherein R is as defined above. The present invention provides a method capable of introducing an acetal type protecting group into a hydroxyl group under mild conditions, and a protecting reagent therefor and a method of producing the protecting reagent.

Abstract: The present invention provides a process for stopping continuous polymerization in which a raw material monomer is polymerized in a reaction vessel by continuously feeding the raw material monomer and a polymerization initiator in the reaction vessel, which process comprises the steps of, in the midst of the polymerization reaction, stopping feeding of the polymerization initiator to the reaction vessel with keeping stirring in the reaction vessel; and adjusting a feed flow rate of the raw material monomer to the reaction vessel so that a temperature T1 (° C.) in the reaction vessel and a temperature T2 (° C.) of an external wall thereof satisfy a relation represented by the formula: T2?20?T1?T2+20.

Abstract: A process for producing an olefin copolymerization catalyst, comprising the step of contacting, with one another, (A) a solid catalyst component containing a titanium atom, a magnesium atom and a halogen atom, (B) an organoaluminum compound and/or organoaluminumoxy compound, and (C) a nitrogen-containing aromatic heterocyclic compound, whose one or more carbon atoms adjacent to its nitrogen atom are linked to an electron-donating group, or a group containing an electron-donating group; and a process for producing an olefin copolymer using the an olefin copolymerization catalyst.

Abstract: A process for the production of an alcohol compound represented by the formula (3): wherein X1, X2, X3, X4, Z, R and n are as defined below, comprising reacting a phenol represented by the formula (1): wherein X1, X2, X3 and X4 independently represent a hydrogen atom, a halogen atom or an alkyl group having 1 to 3 carbon atoms; Z represents an oxygen atom or a sulfur atom; and R represents an alkyl group, an alkenyl group, an alkynyl group, or an aralkyl group which may be substituted by a halogen atom, with a haloalcohol represented by the formula (2): wherein Y represents a chlorine atom or a bromine atom; and n represents an integer of 2 or 3, in a biphase system composed of a water-immiscible organic solvent and an aqueous alkali metal hydroxide solution in the presence of a phase-transfer catalyst.