Abstract: A method for easily producing a heterogeneous catalyst having excellent catalytic activity at a low cost is provided. The heterogeneous catalyst is used for the purpose of synthesizing a cyclic carbonate by reacting an epoxide and carbon dioxide. A catalyst obtained by this production method and a method for synthesizing a cyclic carbonate with use of this catalyst are also provided.

Abstract: Disclosed herein is a method for producing silica gel-immobilized phosphonium salt catalysts including the steps of (a) reacting a silane compound with a silica gel in the presence of xylene, to obtain a catalyst precursor having a haloalkyl group or a haloaryl group, wherein the silane compound has a haloalkyl group or a haloaryl group, and a proportion of the silane compound is from 0.001 to 0.

Abstract: Provided is a method for producing a cyclic carbonate obtained by reacting epoxide and carbon dioxide in the presence of a quaternary onium salt as a counter ion or a quaternary phosphonium salt having a halogenated anion as a counter ion, or in the presence of a solid catalyst obtained by immobilizing the quaternary onium salt onto a carrier, wherein an organohalogen compound containing at least one halogen atom in one molecule is added to the reaction system.

Abstract: A method for producing a heterogeneous catalyst for use of synthesizing cyclic carbonates by reacting an epoxide and carbon dioxide in the presence of the catalyst. A method for making a catalyst that includes forming a catalyst precursor then reacting the catalyst precursor with a tertiary phosphine.

Abstract: Provided is a method for continuously producing a cyclic carbonate, by which generation of a glycol in a reaction for synthesizing a cyclic carbonate is suppressed, and a cyclic carbonate having a high purity can be efficiently obtained even by simple purification. A method for continuously producing a cyclic carbonate, including filling a catalyst in a fixed-bed tube reactor, and continuously feeding carbon dioxide and an epoxide to the fixed-bed tube reactor to thereby bringing the carbon dioxide and the epoxide into contact with the catalyst, while continuously withdrawing the reaction liquid in the fixed-bed tube reactor, wherein the method includes a pre-treatment step in which a pre-treatment liquid containing a cyclic carbonate is brought into contact with the catalyst before feeding the carbon dioxide and the epoxide to the fixed-bed tube reactor, and the generated glycol is removed out of the system.

Abstract: Provided is a method for continuously producing a cyclic carbonate, by which generation of a glycol in a reaction for synthesizing a cyclic carbonate is suppressed, and a cyclic carbonate having a high purity can be efficiently obtained even by simple purification. A method for continuously producing a cyclic carbonate, including filling a catalyst in a fixed-bed tube reactor, and continuously feeding carbon dioxide and an epoxide to the fixed-bed tube reactor to thereby bringing the carbon dioxide and the epoxide into contact with the catalyst, while continuously withdrawing the reaction liquid in the fixed-bed tube reactor, wherein the method includes a pre-treatment step in which a pre-treatment liquid containing a cyclic carbonate is brought into contact with the catalyst before feeding the carbon dioxide and the epoxide to the fixed-bed tube reactor, and the generated glycol is removed out of the system.

Abstract: Provided is a method for producing a cyclic carbonate obtained by reacting epoxide and carbon dioxide, the method being capable of efficiently producing a cyclic carbonate at a high conversion rate and a high yield, in which degradation of the catalyst over time is suppressed and catalytic activity hardly decreases. A method for producing a cyclic carbonate by reacting epoxide and carbon dioxide in the presence of a quaternary onium salt selected from the group consisting of a quaternary ammonium salt having a halogenated anion as a counter ion and a quaternary phosphonium salt having a halogenated anion as a counter ion, or in the presence of a solid catalyst obtained by immobilizing the quaternary onium salt onto a carrier, wherein an organohalogen compound containing at least one halogen atom in one molecule is added to the reaction system.

Abstract: The present invention provides a method for easily and inexpensively producing a heterogeneous catalyst used to synthesize a cyclic carbonate by reacting an epoxide with carbon dioxide and having excellent catalyst activity; a catalyst obtained using said manufacturing method; and a method for synthesizing a cyclic carbonate using said catalyst. A method for producing a catalyst that is used for the purpose of synthesizing a cyclic carbonate by subjecting to a reaction an epoxide with carbon dioxide, said method comprising the following steps (a) and (b): (a) a step of obtaining a catalyst precursor having a haloalkyl group or a haloaryl group by reacting a silane compound with a silica gel in the presence of xylene, the silane compound having a haloalkyl group or a haloaryl group and (b) a step of obtaining a catalyst for synthesizing a cyclic carbonate by reacting the catalyst precursor obtained in step (a) with a tertiary phosphine.

Abstract: A method for easily producing a heterogeneous catalyst having excellent catalytic activity at a low cost is provided. The heterogeneous catalyst is used for the purpose of synthesizing a cyclic carbonate by reacting an epoxide and carbon dioxide. A catalyst obtained by this production method and a method for synthesizing a cyclic carbonate with use of this catalyst are also provided.

Abstract: Provided are: a method for easily producing a heterogeneous catalyst having excellent catalytic activity at a low cost, said heterogeneous catalyst being used for the purpose of synthesizing a cyclic carbonate by subjecting to a reaction an epoxide and carbon dioxide; a catalyst which is obtained by this production method; and a method for synthesizing a cyclic carbonate with use of this catalyst. A method for producing a catalyst that is used for the purpose of synthesizing a cyclic carbonate by subjecting to a reaction an epoxide with carbon dioxide, said method comprising the following steps (a) and (b): (a) a step of obtaining a catalyst precursor having a haloalkyl group or a haloaryl group, by subjecting to a reaction a silane compound having a haloalkyl group or a haloaryl group and a silica gel having an average pore diameter of from 3.

Abstract: A material roll including a roll of a continuous sheet material, including an optical member including a polarizer and a release film provided on one side of the optical member with an adhesive interposed therebetween, wherein when no external force is applied, the continuous sheet material curls in the longitudinal direction in such a way that the release film is facing inward, and the continuous sheet material is for use in a process including bonding the optical member to a substrate with the adhesive interposed therebetween to form an optical display unit.

Abstract: Provided is a liquid crystal display in which occurrence of iridescent unevenness is suppressed, even when a film with high level of mechanical properties, chemical resistance and water-barrier properties is used as a polarizer-protective-film. Also, disclosed is a polarizing plate to be used in the liquid crystal display. The liquid crystal display includes a liquid crystal cell, a light source, a first polarizing plate placed between the liquid crystal cell and the light source, and a second polarizing plate placed on a viewer side of the liquid crystal cell. The first polarizing plate includes a polarizer and a first protective film placed on a light source side principal surface of the first protective film, and the first protective film satisfies following relations: (i) 0 nm?Re1?3000 nm; (ii) Nz1?5; and (iii) Rth1>2500 nm.

Abstract: Provided is an image display device including an image display cell and a polarizing plate placed on a viewer side of the image display cell. The first polarizing plate includes a polarizer and a first protective film. The first protective film is placed on a viewer-side principal surface of the polarizer and satisfies following relations: (i) 0 nm?Re1?3000 nm; (ii) Nz1?7; and (iii) Rth1>2500 nm. Re1, Rth1 and Nz1 are defined by following equations: Re1=(nx1?ny1)d1; Rth1=(nx1?nz1)d1; and Nz1=Rth1/Re1, wherein d1 represents a thickness of the first protective film, nx1 represents a refractive index in a direction of an in-plane slow axis of the protective film, ny1 represents a refractive index in a direction of an in-plane fast axis of the protective film, and nz1 represents a refractive index in a direction of the thickness of the protective film.

Abstract: Provided is a liquid crystal display in which occurrence of iridescent unevenness is suppressed, even when a film with high level of mechanical properties, chemical resistance and water-barrier properties is used as a polarizer-protective-film. Also, disclosed is a polarizing plate to be used in the liquid crystal display. The liquid crystal display includes a liquid crystal cell, a light source, a first polarizing plate placed between the liquid crystal cell and the light source, and a second polarizing plate placed on a viewer side of the liquid crystal cell. The first polarizing plate includes a polarizer and a first protective film placed on a light source side principal surface of the first protective film, and the first protective film satisfies following relations: (i) 0 nm?Re1?3000 nm; (ii) Nz1?5; and (iii) Rth1>2500 nm.

Abstract: A method for manufacturing an optical display unit including a substrate and an optical member having a polarizer, the optical member being bonded to the substrate with an adhesive interposed therebetween. The method includes a cutting step of feeding a continuous sheet material from a roll of the continuous sheet material, the continuous sheet material including the optical member and a release film provided on one side of the optical member with the adhesive interposed therebetween, and cutting the continuous sheet material by cutting means, while leaving the release film uncut, and a bonding step including bonding the sheet material to the substrate with the adhesive interposed therebetween, while removing the release film. When no external force is applied to the sheet material, the sheet material curls in the longitudinal direction so that the release film is facing inward.

Abstract: A material roll including a roll of a continuous sheet material, including an optical member including a polarizer and a release film provided on one side of the optical member with an adhesive interposed therebetween, wherein when no external force is applied, the continuous sheet material curls in the longitudinal direction in such a way that the release film is facing inward, and the continuous sheet material is for use in a process including bonding the optical member to a substrate with the adhesive interposed therebetween to form an optical display unit.

Abstract: To provide a pressure-sensitive adhesive sheet for dicing which inhibits the generation of fibrous scraps and has good expandability.

Abstract: Provided is a liquid crystal display in which occurrence of iridescent unevenness is suppressed, even when a film with high level of mechanical properties, chemical resistance and water-barrier properties is used as a polarizer-protective-film. Also, disclosed is a polarizing plate to be used in the liquid crystal display. The liquid crystal display includes a liquid crystal cell, a light source, a first polarizing plate placed between the liquid crystal cell and the light source, and a second polarizing plate placed on a viewer side of the liquid crystal cell. The first polarizing plate includes a polarizer and a first protective film placed on a light source side principal surface of the first protective film, and the first protective film satisfies following relations: (i) 0 nm?Re1?3000 nm; (ii) Nz1?5; and (iii) Rth1>2500 nm.

Abstract: Provided is an image display device including an image display cell and a polarizing plate placed on a viewer side of the image display cell. The first polarizing plate includes a polarizer and a first protective film. The first protective film is placed on a viewer-side principal surface of the polarizer and satisfies following relations: (i) 0 nm?Re1?3000 nm; (ii) Nz1?7; and (iii) Rth1>2500 nm. Re1, Rth1 and Nz1 are defined by following equations: Re1=(nx1?ny1)d1; Rth1=(nx1?nz1)d1; and Nz1=Rth1/Re1, wherein d1 represents a thickness of the first protective film, nx1 represents a refractive index in a direction of an in-plane slow axis of the protective film, ny1 represents a refractive index in a direction of an in-plane fast axis of the protective film, and nz1 represents a refractive index in a direction of the thickness of the protective film.

Abstract: Provided is a pressure-sensitive adhesive polarizing plate, including: a polarizer (P); a transparent protective film (E) provided on only one side of the polarizer (P) with an adhesive layer (G) interposed therebetween; a pressure-sensitive adhesive layer (B) provided on another side of the polarizer (P) with a protective layer (H) having a tensile modulus of 100 MPa or more interposed therebetween. The pressure-sensitive adhesive polarizing plate satisfies durability even under harsh environments at a low temperature and a high temperature.