Abstract: A fuel-tank control valve includes: casing; main float; plate with upper surface that constitutes bottom portion of casing, and that includes first gas-storage chamber formed of plate and peripheral wall portion that is provided upright from rim of upper surface to lower side; sub float arranged above the plate; second gas-storage chamber formed of a part including gas supply hole of first gas-storage chamber among parts of upper surface, and partition-wall portion which is away from peripheral wall portion, and that is provided in first gas-storage chamber; and clearance which is formed between casing and peripheral wall portion, and through which fuel in fuel tank can flow in, second gas-storage chamber and clearance being provided for sub float. Upper surface includes protruding seating portion that forms inflow space through which gas through gas supply hole can flow in under state in which sub float is seated on protruding seating portion.

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: A binder for an electrochemical device made of a polymer material including a first polymer containing a first constituent unit having a guest group in a side chain; and a second polymer containing a second constituent unit having a host group in a side chain. Also disclosed is an electrode mixture containing the binder, an electrode active material and a dispersion medium; an electrode containing the binder, an electrode active material and a current collector; an electrochemical device including the electrode; and a secondary battery including the electrode.

Abstract: A resin reflective film, which containing two or more kinds of regions having different refractive indexes from each other, in which a film thickness of the resin film 20 to 5,000 µm, and a total reflectance is 60% or more and a diffuse reflectance is 60% or more for deep ultraviolet rays having a wavelength of 220 to 300 nm.

Abstract: A resin composition including a first polymer having a host group in a side chain and a second polymer having a carboxyl group in a side chain, wherein the first polymer has a hydroxyl group. Also disclosed is a polymer having a host group (A) and a carboxyl group (B), wherein the polymer has a number-average molecular weight of 50,000 to 5,000,000; a method for producing a polymer which includes performing an ester group-forming reaction with a first polymer having a host group in a side chain and a second polymer having a carboxyl group in a side chain; a binder for an electrochemical device including the polymer; an electrode mixture including the binder; an electrode including the binder; an electrochemical device including the electrode; and a secondary battery including the electrode.

Abstract: A ventilation control valve for a fuel tank is disposed in a ventilation passage which communicates an inside and an outside of a fuel tank. The ventilation control valve includes a float that floats on a liquid level of a fuel and moves up and down. The ventilation control valve includes a valve mechanism which switches a passage sectional area of the ventilation passage in conjunction with the float to an open state and a restricted state in which the passage sectional area is restricted from the opened state. The float has a volume chamber in which volume changes in accordance with a vertical movement of the float. A control gap as a flow rate adjusting mechanism is formed between the cylindrical wall of the float and the cylindrical wall of a case. Due to the control gap, the volume chamber functions as a damper.

Abstract: A refrigeration cycle apparatus, refrigerating machine oil and refrigerant leakage prevention agent. The refrigeration cycle apparatus contains a working fluid which contains a refrigerant composition including a refrigerant and a refrigerating machine oil including resin particles of which D50 and D90/D10 are 2.0 ?m to 10.0 ?m and 4.0 to 14.0, respectively.

Abstract: A fluoropolyether-containing compound of the following formula (1a): Ra—R2—R1—Rb (1a) wherein the symbols are as defined in the specification. Also disclosed is a fluoropolyether-containing compound of the following formula (1b): Ra—R2?—R1—Rb (1b), as well as a method for producing a compound of the formula (A): FOC—R2—R1—COOR12 (A) wherein the symbols are as defined in the specification.

Abstract: Provided is a binder for an electrochemical device, which can follow the volume change of an electrode structure due to discharge and charge and can improve a life characteristic of the electrochemical device. A binder for an electrochemical device, which is a binder for a secondary battery containing a polymer having at least one cyclic host group in a molecule, wherein the host group is present as a side chain of the polymer, and a main chain of the polymer penetrates through at least a part of the cyclic host groups.

Abstract: A binder for an electrochemical device made of a polymer material including a first polymer containing a first constituent unit having a guest group in a side chain; and a second polymer containing a second constituent unit having a host group in a side chain. Also disclosed is an electrode mixture containing the binder, an electrode active material and a dispersion medium; an electrode containing the binder, an electrode active material and a current collector; an electrochemical device including the electrode; and a secondary battery including the electrode.

Abstract: An object of the present invention is to provide a macromolecular material that exhibits excellent elongation. The first macromolecular material of the present invention contains the first polymer containing the first structural unit and the second polymer containing the second structural unit. The first structural unit has a guest group in its side chain, and the second structural unit has a host group in its side chain. At least one of the first and the second polymers contains at least one fluorine group. The second macromolecular material of the present invention contains the first structural unit having a guest group in its side chain, the second structural unit having a host group in its side chain, and the third structural unit other than the first and second structural units. At least one of the first, the second, and the third structural units contains at least one fluorine group.

Abstract: An object is to provide a piezoelectric film with good piezoelectricity. This object can be achieved by a piezoelectric film comprising a vinylidene fluoride/tetrafluoroethylene copolymer film and having a residual polarization amount of 40 mC/m2 or more.

Abstract: A perfluoro(poly)ether group containing silane compound represented by the formula (1a) or the formula (1b): A-Rf—X—SiQkY3-k??(1a) Y3-kQkSi—X—Rf—X—SiQkY3-k??(1b) as defined herein. Also disclosed is a process for producing the compound, a surface-treating agent containing the compound, a pellet containing the surface-treating agent and an optical member including a base material and a layer formed on a surface of the base material from the compound.

Abstract: A fuel shutoff valve includes a valve, a float, and an auxiliary member. The valve is configured to open or close an air passage of a fuel tank. The float floats on fuel and moves in a valve closing direction to close the valve, or in a valve opening direction opposite to the valve closing direction to open the valve. The auxiliary member has a predetermined weight, and abuts on the float to apply a weight on the float in the valve opening direction, or separating from the float not to apply the weight on the float in the valve closing direction.

Abstract: A ventilation control valve for a fuel tank is disposed in a ventilation passage which communicates an inside and an outside of a fuel tank. The ventilation control valve includes a float that floats on a liquid level of a fuel and moves up and down. The ventilation control valve includes a valve mechanism which switches a passage sectional area of the ventilation passage in conjunction with the float to an open state and a restricted state in which the passage sectional area is restricted from the opened state. The float has a volume chamber in which volume changes in accordance with a vertical movement of the float. A control gap as a flow rate adjusting mechanism is formed between the cylindrical wall of the float and the cylindrical wall of a case. Due to the control gap, the volume chamber functions as a damper.

Abstract: A vent control valve for a fuel tank controls a ventilation between a fuel tank and an outside, and includes: an annular valve seat defined in a case; a movable valve object which is movable relative to the valve seat; a seal component having an annular plate shape and held by the movable valve object to be seated on or separated from the valve seat to open and close a passage for ventilation; and an annular ridge part defined in the movable valve object or the seal component such that the movable valve object and the seal component are in contact with each other on an annular seal line.

Abstract: A perfluoro(poly)ether group containing silane compound represented by the formula (1a) or the formula (1b): A-Rf—X—SiQkY3-k??(1a) Y3-kQkSi—X—Rf—X—SiQkY3-k??(1b) as defined herein. Also disclosed is a process for producing the compound, a surface-treating agent containing the compound, a pellet containing the surface-treating agent and an optical member including a base material and a layer formed on a surface of the base material from the compound.

Abstract: A perfluoro(poly)ether group containing silane compound represented by the formula (1a) or the formula (1b): A-Rf—X—SiQkY3-k??(1a) Y3-kQkSi—X—Rf—X—SiQkY3-k??(1b) as defined herein. Also disclosed is a process for producing the compound, a surface-treating agent containing the compound, a pellet containing the surface-treating agent and an optical member including a base material and a layer formed on a surface of the base material from the compound.

Abstract: A vent control valve for a fuel tank controls a ventilation between a fuel tank and an outside. The vent control valve includes: a case having a tube shape that forms a passage for ventilation; a movable valve object arranged in the case to be movable in an axial direction of the case to open and close the passage; and a baffle component disposed between the case and the movable valve object and located on an outer side of the movable valve object in a radial direction. An outer passage is defined between the case and the baffle component, and the baffle component restricts a contact between a fluid flowing through the outer passage and the movable valve object.

Abstract: An object of the present invention is to provide a macromolecular material that exhibits excellent elongation. The first macromolecular material of the present invention contains the first polymer containing the first structural unit and the second polymer containing the second structural unit. The first structural unit has a guest group in its side chain, and the second structural unit has a host group in its side chain. At least one of the first and the second polymers contains at least one fluorine group. The second macromolecular material of the present invention contains the first structural unit having a guest group in its side chain, the second structural unit having a host group in its side chain, and the third structural unit other than the first and second structural units. At least one of the first, the second, and the third structural units contains at least one fluorine group.