Abstract: A method for separating a fluorocarbon, the method including separating a fluorocarbon having n carbon atoms from a mixture including the fluorocarbon having n carbon atoms and a fluorocarbon having n+m or more carbon atoms, where the fluorocarbon having n carbon atoms is separated by bringing the mixture and an adsorbent into contact with each other, n is an integer of 1 or more; and m is an integer of 1 or more.

Abstract: A heat exchanger including an aluminum substrate, and a water-repellent coating provided on a surface of the aluminum substrate, wherein the aluminum substrate has an anodized film on the surface, and the water-repellent coating is a film formed of a fluoropolyether group-containing compound.

Abstract: A process for producing spherical activated carbon is complex; therefore, an adsorbent that has an effective adsorption amount larger than or equal to that of spherical activated carbon and that is easily produced is desired. An adsorption heat pump uses, as refrigerant, carbon dioxide and uses, as an adsorbent, a metal-organic framework including a metal ion and an organic ligand. The metal-organic framework is, for example, MOF-200.

Abstract: Provided are a composition for forming an anti-snow-accumulation film capable of forming a film that is unlikely to undergo snow accumulation, and an anti-snow-accumulation film. The composition for forming an anti-snow-accumulation film according to the present disclosure contains composite particles formed from fine particles each coated with a first polymer and a coating material component. The anti-snow-accumulation film according to present disclosure contains composite particles formed from fine particles each coated with a first polymer and a binder component. The anti-snow-accumulation film according to the present disclosure has a snow accumulation start time of 20 minutes or more as measured in a snow accumulation test. The anti-snow-accumulation film according to the present disclosure is unlikely to undergo snow accumulation.

Abstract: The present disclosure provides a film-forming composition capable of forming a film having excellent water repellency, a high level of hardness, and excellent water resistance, and provides the film. The film-forming composition of the present disclosure contains an inorganic fine particle, a polymerizable component, and a water-repellent component, wherein the inorganic fine particle has an average particle size of 100 nm or more and 5 ?m or less, the content of the inorganic fine particle is 5 to 40 parts by mass per 100 parts by mass of the total mass of the inorganic fine particle, the polymerizable component, and the water-repellent component, and the water-repellent component is a polymer having at least a structure unit based on the compound represented by the following formula (1): wherein X represents a hydrogen atom etc., Y represents a direct bond, a C1-10 hydrocarbon group optionally having an oxygen atom etc.

Abstract: The present invention provides a lithium ion secondary cell excellent in high-temperature storage characteristics and high voltage cycle characteristics; and a nonaqueous electrolyte for the cell.

Abstract: A coating material capable of forming a film that is free of squeakiness and is less likely to suffer staining of clothing dye on the surface of a base such as a rubber molded article. The coating material contains fluororesin primary particles having an average particle size of 0.2 to 200 nm, a curable silicone resin in an amount of 0.1 to 250 mass % relative to the fluororesin primary particles, and water.

Abstract: The present invention aims to provide an electrolyte solution for forming, for example, a secondary battery having excellent oxidation resistance and high voltage cycle characteristics; an electrochemical device such as a lithium-ion secondary battery that contains the electrolyte solution; and a module that contains the electrochemical device. The present invention provides an electrolyte solution containing a solvent and an electrolyte salt, wherein the solvent contains a fluorine-containing compound (A) represented by formula (1) shown below, and a fluorine-containing compound (B) represented by formula (2) shown below: Rf1OCOOR??(1) wherein Rf1 is a C1-C4 fluorine-containing alkyl group, and R is a C1-C4 non-fluorinated alkyl group, and Rf2OCOORf3??(2) wherein Rf2 and Rf3 are the same or different, and each is a C1-C4 fluorine-containing alkyl group.

Abstract: An electrolytic solution including a nonaqueous solvent (I), an electrolyte salt (II), and 0.001 to 20% by mass of a compound represented by the formula (1) or the formula (A) as defined herein.

Abstract: The present invention aims to provide an electrolyte solution for forming, for example, a secondary battery having excellent oxidation resistance and high-temperature storage characteristics; an electrochemical device such as a lithium-ion secondary battery that contains the electrolyte solution; and a module that contains the electrochemical device. The present invention provides an electrolyte solution containing a solvent and an electrolyte salt, wherein the solvent contains a fluorine-containing compound (A) represented by formula (1) shown below in an amount of 0.01 to 20% by mass, and a fluorine-containing compound (B) represented by formula (2) shown below in an amount of 10 to 80% by mass: Rf1OCOOR??(1) wherein Rf1 is a C1-C4 fluorine-containing alkyl group, and R is a C1-C4 non-fluorinated alkyl group, and Rf2OCOORf3??(2) wherein Rf2 and Rf3 are the same or different, and each is a C1-C4 fluorine-containing alkyl group.

Abstract: The present invention aims to provide an electrolytic solution which restrains gas generation and has excellent battery characteristics. The electrolytic solution includes a nonaqueous solvent (I), an electrolyte salt (II), and 0.

Abstract: A nonaqueous electrolyte solution including: a nonaqueous solvent; and an electrolyte salt. The nonaqueous solvent contains a fluorinated linear carbonate (A) represented by Formula (1): RfOCOOR where Rf represents a C1-4 fluorinated alkyl group and R represents a C1-4 alkyl group, and at least one cyclic carbonate (B) selected from ethylene carbonate, propylene carbonate, and fluoroethylene carbonate. The nonaqueous solvent also contains at least one compound (?) and at least one compound (?) as defined herein. The compound (?) is contained in an amount of 5000 ppm or less based on the amount of the fluorinated linear carbonate (A), and the compound (?) is contained in an amount of 50 ppm or less based on the amount of the cyclic carbonate (B). Also disclosed is an electrochemical device and a lithium ion secondary cell containing the nonaqueous electrolyte solution and a module including the lithium ion secondary cell.

Abstract: The present invention aims to provide an electrolyte solution for forming, for example, a secondary battery having excellent oxidation resistance and high-temperature storage characteristics; an electrochemical device such as a lithium-ion secondary battery that contains the electrolyte solution; and a module that contains the electrochemical device. The present invention provides an electrolyte solution containing a solvent and an electrolyte salt, wherein the solvent contains a fluorine-containing compound (A) represented by formula (1) shown below in an amount of 0.01 to 20% by mass, and a fluorine-containing compound (B) represented by formula (2) shown below in an amount of 10 to 80% by mass: Rf1OCOOR??(1) wherein Rf1 is a C1-C4 fluorine-containing alkyl group, and R is a C1-C4 non-fluorinated alkyl group, and Rf2OCOORf3??(2) wherein Rf2 and Rf3 are the same or different, and each is a C1-C4 fluorine-containing alkyl group.

Abstract: The present invention aims to provide an electrolyte solution for forming, for example, a secondary battery having excellent oxidation resistance and high voltage cycle characteristics; an electrochemical device such as a lithium-ion secondary battery that contains the electrolyte solution; and a module that contains the electrochemical device. The present invention provides an electrolyte solution containing a solvent and an electrolyte salt, wherein the solvent contains a fluorine-containing compound (A) represented by formula (1) shown below, and a fluorine-containing compound (B) represented by formula (2) shown below: Rf1OCOOR??(1) wherein Rf1 is a C1-C4 fluorine-containing alkyl group, and R is a C1-C4 non-fluorinated alkyl group, and Rf2OCOORf3??(2) wherein Rf2 and Rf3 are the same or different, and each is a C1-C4 fluorine-containing alkyl group.

Abstract: There is provided a method of preparing a high purity fluorine-containing ether which inhibits a side reaction generating an unsaturated bond and assures low cost and simple steps. When preparing the fluorine-containing ether by allowing a fluorine-containing alkyl alcohol to react with a fluorinated olefin in the presence of a basic compound, a reaction is terminated at a stage before a conversion ratio of the fluorine-containing alkyl alcohol reaches 75%.

Abstract: The present invention provides a lithium ion secondary cell excellent in high-temperature storage characteristics and high voltage cycle characteristics; and a nonaqueous electrolyte for the cell.

Abstract: There is provided a process for preparing a fluoropropylene carbonate safely at high yield by one step (one pot), and the process is characterized by allowing a fluorinating agent to act on a propylene carbonate derivative having a group to be released in a fluorination reaction.

Abstract: There is provided a non-aqueous electrolytic solution assuring good solubility of an electrolyte salt and having enough cell characteristics (charge and discharge cycle characteristic, discharge capacity, and the like), and the non-aqueous electrolytic solution comprises a solvent for dissolving an electrolyte salt comprising (A) at least one fluorine-containing solvent selected from the group consisting of fluorine-containing ethers and fluorine-containing carbonates, (B) a non-fluorine-containing cyclic carbonate and (C) a chain ester represented by the formula (C): R1COOR2, wherein R1 is an alkyl group having 2 to 4 carbon atoms; R2 is an alkyl group having 1 to 4 carbon atoms or a fluorine-containing alkyl group having 1 to 4 carbon atoms, and (II) an electrolyte salt.

Abstract: There is provided a non-aqueous electrolytic solution assuring good solubility of an electrolyte salt and having enough cell characteristics (charge and discharge cycle characteristic, discharge capacity, and the like), and the non-aqueous electrolytic solution comprises a solvent for dissolving an electrolyte salt comprising (A) at least one fluorine-containing solvent selected from the group consisting of fluorine-containing ethers and fluorine-containing carbonates, (B) a non-fluorine-containing cyclic carbonate and (C) a chain ester represented by the formula (C): R1COOR2, wherein R1 is an alkyl group having 2 to 4 carbon atoms; R2 is an alkyl group having 1 to 4 carbon atoms or a fluorine-containing alkyl group having 1 to 4 carbon atoms, and (II) an electrolyte salt.

Abstract: The present invention provides a method for efficiently producing a highly pure fluoroether containing remarkably low concentration of a fluorine-containing alkyl alcohol. The method is suited for scale-up and specifically includes performing countercurrent separation of a crude solution of fluoroether including a fluorine-containing alkyl alcohol as an impurity using water.