Daicel Corporation Patente

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Provided is an alloy powder that can form a bonding layer that operates at high temperatures and exhibits excellent bonding reliability while complying with environmental regulations. An alloy powder of the present disclosure is characterized by having an AgSi eutectic structure, in which the proportion of the AgSi eutectic structure is 10% or more in at least 8 or more of 10 particles when any 10 adjacent particles of the alloy powder are subjected to a method including selecting one particle from an image of a particle cross section, the image being captured by SEM at a magnification of from 2000 to 50000 times, measuring a total outer peripheral length of the particle and a length of an outer peripheral portion where the eutectic structure is present, a region where no eutectic structure is present in a region from the outer periphery to 0.2 µm in a direction toward the center of the particle being excluded from the outer peripheral portion, and calculating a proportion of the length of the outer peripheral portion thereof to the total outer peripheral length as the proportion of the AgSi structure on the particle surface.

Provided is an alloy powder-containing composition that operates at high temperatures and exhibits excellent mounting properties and bonding reliability while complying with environmental regulations. The alloy powder-containing composition of the present disclosure is characterized by containing an alloy powder having an AgSi eutectic structure, a silver (Ag) powder, and an organic substance. In addition, in the present disclosure, the content of silver (Ag) relative to the total amount of the alloy powder is preferably from 15 to 97.6 mass%, the content of the silver (Ag) powder is preferably from 5 to 2000 parts by mass per 100 parts by mass of the alloy powder, and the content of silver relative to the total amount of the alloy powder and the silver (Ag) powder is preferably from 20 to 99.9 mass%.

An alloy that can easily form a sintered body having excellent bonding reliability is provided. The alloy of the present disclosure contains a solid solution phase of a metal element Y in a metal element X, and the metal element X is deposited on a surface by heat treatment in a gas phase, liquid phase, or solid phase atmosphere forming a compound with the metal element Y. The metal element X is preferably deposited on the surface by the heat treatment in an oxygen atmosphere. The metal element X is preferably Ag and/or Cu. Preferably, the metal element X contains Ag and the metal element Y contains Si and/or Ge.

Provided is a curable epoxy composition that is curable in a short time in the presence of oxygen and is excellent in filling property. The curable epoxy composition contains an epoxy compound having an epoxy group in the molecule, and a photocationic polymerization initiator. The curable epoxy composition is for a rotary electric machine and/a semiconductor. The curable epoxy composition is preferably substantially free of a curing agent other than a photocationic polymerization initiator. The curable epoxy composition may contain a polyol.

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The purpose of the present disclosure is to provide a urethane composition that can form a cured product that exhibits excellent tensile strength and elongation while having sufficient impact resistance. The urethane composition of the present disclosure contains an ester-based polyol and a polyisocyanate, wherein the ester-based polyol includes a structural moiety derived from an alicyclic diol compound, and no crystal melting peak is confirmed by DSC analysis. The polyisocyanate is preferably a non-aromatic isocyanate, and the polyisocyanate preferably contains a bifunctional isocyanate and a trifunctional isocyanate.

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To assist determination of an operation condition in an unsteady operation of a plant. A procedure creation assistance device includes a processing unit that performs acquiring process data output in a past unsteady operation in a plant, creating a trained model that is trained with a relationship between an explanatory variable and a predetermined response variable by using regression analysis where the explanatory variable is a feature based on the process data, performing simulation using the trained model and an assumed value of the explanatory variable, outputting a condition serving as a predetermined constraint with respect to a regression coefficient of the trained model, a result of the simulation, and the explanatory variable, and modifying the trained model when an operation to modify the explanatory variable is received from a user or performing the simulation using a modified value of the assumed value when an operation to modify the assumed value is received from the user.

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At a minimum, the following is provided. An injector capable of forming a space in a target is provided. The problem is solved by an injector for injecting a liquid and a gas into a target from an injector body without performing injection through a predetermined structure in a state in which the predetermined structure is inserted into the target, the injector including a storage to store the liquid and the gas, a nozzle in communication with the storage and including an ejection port for ejecting the liquid and gas toward the target, and a pressurizer to pressurize the liquid and gas stored in the storage to eject the liquid and gas from the ejection port toward the target when activated. The ratio of the volume of the gas to the total volume of the liquid and gas is more than 60 % and 80 % or less.

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An intravitreal administration tool (50) is provided which positions a needleless injector that injects a substance to be injected into a vitreous body of an eyeball without using an injection needle. The intravitreal administration tool includes a guide (54), at least a part of which is formed in a shape corresponding to the outer edge of a cornea of the eyeball, and a positioning portion (51) that is connected to the guide (54) and the needleless injector and that positions an ejection port (77), of the needleless injector, from which the substance to be injected is ejected, at a position away from the outer edge of the cornea by a predetermined distance rearward of the eyeball when the guide (54) is disposed in alignment with the outer edge of the cornea.

Provided are a material and a filter with a material which have an excellent antiviral effect against various effects even on a dry surface (in a gas phase) assumed as a condition under which a filter is actually used. A material 3 of the present disclosure comprises a main body portion 4 having a shape of irregularities on a surface thereof, and nanodiamond particles 5 deposited on the irregularities. In a filter 1 with a material according to the present disclosure, the material 3 is attached to a filter 2.

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