Abstract: An epoxy resin composition contains a curing agent A, a curing agent B, a curing agent C, an epoxy resin D, an epoxy resin E, and resin particles F, wherein the curing agent A is an aromatic polyamine having a substituent selected from an alkyl group, an aromatic group, and a halogen group at each of two ortho positions of an amino group, the curing agent B is an aromatic polyamine that is liquid at 25° C., and the curing agent C is an aromatic polyamine having only one electron donating substituent or no substituent at an ortho position of an amino group, the epoxy resin D is constituted by an epoxy resin which is composed of a monomer containing 4 or more glycidyl groups, and the epoxy resin E is constituted by an epoxy resin which is composed of a monomer containing 2 or 3 glycidyl groups.

Abstract: There is provided a gas solution supply apparatus capable of preventing bubbles from being generated in use at a point-of-use even if gas solution to be provided to a point-of-use has a high concentration. The gas solution supply apparatus 1 includes: a gas dissolving unit 4 that dissolves a source gas in a source liquid to produce a first gas solution; a first gas-liquid separator 10 that stores the first gas solution produced and produces a second gas solution through gas-liquid separation of the first gas solution; a pressure reducer 17 that depressurizes the second gas solution produced in the first gas-liquid separator 10; and a second gas-liquid separator 12 that stores the depressurized second gas solution and produces a third gas solution through gas-liquid separation of the second gas solution. The third gas solution is supplied to a point-of-use.

Abstract: A gas solution manufacturing device 1 includes a gas supply line 2 configured to supply a gas as a raw material of a gas solution, a liquid supply line 3 configured to supply a liquid as a raw material of the gas solution, a gas solution production unit 4 configured to mix the gas and the liquid together to produce the gas solution, a gas-liquid separation unit 5 configured to perform gas-liquid separation of the produced gas solution into a supplied liquid to be supplied to a use point and a discharged gas to be discharged through an exhaust port, and a gas dissolving unit 6 provided in the liquid supply line 4 and configured to dissolve the discharged gas resulting from the gas-liquid separation in the liquid. The gas dissolving unit 6 is configured with a hollow fiber membrane configured with a gas permeable membrane.

Abstract: A gas dissolved liquid manufacturing device includes: a pump configured to pressurize a liquid; a pipe communicating with the pump; a nozzle disposed in the pipe, the nozzle being configured to generate micro bubbles using a supplied gas; and a gas-liquid separation tank whose upper part communicates with the pipe, the gas-liquid separation tank being configured to separate a gas-liquid mixture generated by the nozzle into a gas and a liquid.

Abstract: The present invention provides an epoxy resin composition containing: an epoxy resin [A] that is a compound represented by Chemical formula (1) shown below: wherein R1 to R4 each independently represent one selected from the group consisting of a hydrogen atom, an aliphatic hydrocarbon group, an alicyclic hydrocarbon group, and a halogen atom, and X represents one selected from —CH2—, —O—, —S—, —CO—, —C(?O)O—, —O—C(?O)—, —NHCO—, —CONH—, and —SO2—; a bifunctional epoxy resin [B] having an amine type glycidyl group; a curing agent [C] containing an aromatic polyamine, and having at least one substituent selected from an aliphatic substituent, an aromatic substituent, and a halogen atom at an ortho position with respect to an amino group; and a particulate rubber component [D].

Abstract: A gas dissolution supply apparatus dissolves a gas supplied from a gas supply unit in a liquid supplied from a liquid supply unit to produce a gas dissolution in a gas dissolving unit, stores the gas dissolution produced in the gas dissolving unit in a gas dissolution tank, supplies the gas dissolution from the gas dissolution tank to a point of use, measures the flow rate of a part of the gas dissolution supplied to the point of use that is returned to the gas dissolving unit, and adjusts the flow rate of the liquid supplied from the liquid supply unit to the gas dissolving unit based on the result of the measurement.

Abstract: The present invention provides an epoxy compound indicated by chemical formula (1) (in chemical formula (1), X indicates a C1-10 aliphatic hydrocarbon group, R1 and R2 each independently indicate one selected from the group consisting of a hydrogen atom, an aliphatic hydrocarbon group, an aromatic group, an alkoxy group, and a halogen atom)

Abstract: A gas solution supply device 1 includes: a first gas-liquid separator 8 in which gas solution is stored; a second gas-liquid separator 16 provided at a stage subsequent to the first gas-liquid separator 8 and in which gas solution to be supplied to a use point is stored; an intermediate line 17 provided between the first gas-liquid separator 8 and the second gas-liquid separator 16; a pressure booster pump 18 provided on the intermediate line 17 and increases a pressure of gas solution being supplied from the first gas-liquid separator 8 to the second gas-liquid separator 16; a gas supply line 2 that supplies gas as a material of the gas solution; and a gas dissolving unit 20 provided on the intermediate line 17 and dissolves the gas supplied from the gas supply line 2 in the gas solution supplied from the first gas-liquid separator 8.

Abstract: The present invention provides an epoxy compound indicated by chemical formula (1) (in chemical formula (1), X indicates a C1-10 aliphatic hydrocarbon group, R1 and R2 each independently indicate one selected from the group consisting of a hydrogen atom, an aliphatic hydrocarbon group, an aromatic group, an alkoxy group, and a halogen atom.

Abstract: Provided is a configuration capable of improving the signal strength of a piezoelectric element using piezoelectric fibers. This braided piezoelectric element comprises a core comprising conductive fibers and a sheath comprising braided piezoelectric fibers so as to cover the core, the braided piezoelectric element further comprising a metal terminal connected and fixed to the core in either of the following states A or B. A) A state where a portion of the metal terminal grasps a fiber portion constituting the end of a braided piezoelectric element and the core and the metal terminal are electrically connected to each other and fixed within 1 mm from where the metal terminal grasps the fiber portion.

Abstract: A gas solution manufacturing device 1 includes a gas supply line 2 configured to supply a gas as a raw material of a gas solution, a liquid supply line 3 configured to supply a liquid as a raw material of the gas solution, a gas solution production unit 4 configured to mix the gas and the liquid together to produce the gas solution, a gas-liquid separation unit 5 configured to perform gas-liquid separation of the produced gas solution into a supplied liquid to be supplied to a use point and a discharged gas to be discharged through an exhaust port, and a gas dissolving unit 6 provided in the liquid supply line 4 and configured to dissolve the discharged gas resulting from the gas-liquid separation in the liquid. The gas dissolving unit 6 is configured with a hollow fiber membrane configured with a gas permeable membrane.

Abstract: Even when a tin-based polymerization catalyst and a phosphorus-based compound are present in a poly-L-lactic acid (A) and a poly-D-lactic acid (B), by using a specific proportion of an organic acid metal salt or an organic metal salt for stereocomplex crystallization, a stereocomplex polylactic acid composition having a high stereocomplex crystallinity and a high stereocomplex crystal melting point, a small stereocomplex crystal melting point depression even after remelting, a small decrease in the molecular weight, excellent forming processability, and also heat resistance can be provided.

Abstract: The purpose of the present invention is to provide a fibrous piezoelectric element which enables a large electric signal to be drawn out by stress produced by relatively small deformation. A piezoelectric element includes a braid composed of a conductive fiber and a piezoelectric fiber. In the braid, the conductive fiber is a core, and the piezoelectric fiber is a covering fiber that covers the periphery of the conductive fiber.

Abstract: A gas dissolved liquid manufacturing device includes: a pump configured to pressurize a liquid; a pipe communicating with the pump; a nozzle disposed in the pipe, the nozzle being configured to generate micro bubbles using a supplied gas; and a gas-liquid separation tank whose upper part communicates with the pipe, the gas-liquid separation tank being configured to separate a gas-liquid mixture generated by the nozzle into a gas and a liquid.

Abstract: The present invention provides an epoxy resin composition including tetraglycidyl-3,4?-diaminodiphenyl ether, and a curing agent composed of an aromatic polyamine having a predetermined substituent in at least one ortho position with respect to an amino group, a predetermined aromatic epoxy resin having a glycidyl ether group, or an epoxy resin having a predetermined epoxy equivalent weight.

Abstract: A gas dissolution supply apparatus dissolves a gas supplied from a gas supply unit in a liquid supplied from a liquid supply unit to produce a gas dissolution in a gas dissolving unit, stores the gas dissolution produced in the gas dissolving unit in a gas dissolution tank, supplies the gas dissolution from the gas dissolution tank to a point of use, measures the flow rate of a part of the gas dissolution supplied to the point of use that is returned to the gas dissolving unit, and adjusts the flow rate of the liquid supplied from the liquid supply unit to the gas dissolving unit based on the result of the measurement.

Abstract: A gas-dissolved liquid producing apparatus 1 includes a gas supply unit 2, a first liquid supply unit 3, a gas-dissolved liquid generator 4, a second liquid generator 20, a second liquid supply unit 21, a flow rate measuring unit 14, and a controller 23. The controller 23 controls the supply amount of the first liquid to be supplied to the gas-dissolved liquid generator 4 according to the flow rate of circulated gas-dissolved liquid measured by the flow rate measuring unit 14. The gas-dissolved liquid generator 4 dissolves gas supplied from the gas supply unit 2 in first liquid supplied from the first liquid supply unit 3 and second liquid supplied from the second liquid supply unit 21 to generate gas-dissolved liquid.

Abstract: Provided is a supply-liquid producing apparatus capable of producing a supply liquid by an amount needed at a use point. A supply-liquid producing apparatus includes a mixer that mixes water and ozone gas to produce ozone water; a booster pump that increases the pressure of the water supplied to the mixer; a gas-liquid separation tank that separates the ozone water produced by the mixer into ozone water to be supplied to a use point and exhaust gas to be discharged from an exhaust port; a flowmeter that measures the flow rate of the ozone water supplied from the gas-liquid separation tank to the use point; a flow control unit that adjusts the (flow rate of the water supplied to the mixer by controlling the booster pump in response to the flow rate of the ozone water measured by the flowmeter; and an exhaust pressure control unit that controls the exhaust pressure to keep constant the water level in the gas-liquid separation tank.

Abstract: A gas-dissolved liquid producing apparatus 1 includes a gas supply unit 2, a first liquid supply unit 3, a gas-dissolved liquid generator 4, a second liquid generator 20, a second liquid supply unit 21, a flow rate measuring unit 14, and a controller 23. The controller 23 controls the supply amount of the first liquid to be supplied to the gas-dissolved liquid generator 4 according to the flow rate of circulated gas-dissolved liquid measured by the flow rate measuring unit 14. The gas-dissolved liquid generator 4 dissolves gas supplied from the gas supply unit 2 in first liquid supplied from the first liquid supply unit 3 and second liquid supplied from the second liquid supply unit 21 to generate gas-dissolved liquid.

Abstract: Provided is a supply-liquid producing apparatus capable of producing a supply liquid by an amount needed at a use point. A supply-liquid producing apparatus includes a mixer that mixes water and ozone gas to produce ozone water; a booster pump that increases the pressure of the water supplied to the mixer; a gas-liquid separation tank that separates the ozone water produced by the mixer into ozone water to be supplied to a use point and exhaust gas to be discharged from an exhaust port; a flowmeter that measures the flow rate of the ozone water supplied from the gas-liquid separation tank to the use point; a flow control unit that adjusts the flow rate of the water supplied to the mixer by controlling the booster pump in response to the flow rate of the ozone water measured by the flowmeter; and an exhaust pressure control unit that controls the exhaust pressure to keep constant the water level in the gas-liquid separation tank.