Abstract: The present disclosure aims to provide a novel method for lowering the concentrations of dimethylamine, diethylamine, ethylpropylamine, and ethylisopropylamine in a crude trialkylamine. The present disclosure relates to a method for purifying a trialkylamine, including contacting a crude trialkylamine containing at least one impurity selected from the group consisting of dimethylamine, diethylamine, ethylpropylamine, and ethylisopropylamine with a zeolite to lower a concentration of the at least one impurity selected from the group consisting of dimethylamine, diethylamine, ethylpropylamine, and ethylisopropylamine in the crude trialkylamine than the concentration before contacting with the zeolite.

Abstract: A selective film deposition method includes exposing a substrate having a structure on which a first surface region containing a metal element and a second surface region containing a nonmetal inorganic material are both exposed, to a solution containing an organic substance represented by formula (1) shown below and a solvent to deposit a film of the organic substance on the first surface region selectively over the second surface region: R1(X)m (1) wherein R1 is a C4-C100 hydrocarbon group optionally containing a heteroatom or a halogen atom, and m hydrogen atoms of the hydrocarbon group are replaced with X; X is —PO3(R2)2, —O—PO3(R2)2, —CO2R2, —SR2, or —SSR1; each R2 is a hydrogen atom or a C1-C6 alkyl group; and m is a positive integer, and m/r is 0.01 to 0.25 where r is the number of carbons of the hydrocarbon group.

Abstract: A wet etching solution according to the present disclosure is an etching solution for selectively removing a second metal layer made of at least one of a cobalt-based material or a copper-based material from a semiconductor substrate while suppressing etching of a first metal layer made of a tungsten-based material, the first metal layer and the second metal layer being co-present on the semiconductor substrate, an oxide layer being formed on a surface layer of at least the at least one of a cobalt-based material or a copper-based material. The wet etching solution includes a solution in which a ?-diketone containing a trifluoromethyl group and a carbonyl group bonded together is dissolved in an organic solvent.

Abstract: The present disclosure provides a wet etching method including pretreating a metal-containing film on a substrate with a surface modification liquid and etching the metal-containing film with an etching liquid, wherein the etching liquid is a solution containing: a ?-diketone with a trifluoromethyl group bonded to a carbonyl group; and an organic solvent, wherein the metal-containing film contains a metal element capable of forming a complex with the ?-diketone, wherein the surface modification liquid contains an acidic substance against the metal element, and wherein the wet etching method is carried out through: a first step of bringing the surface modification liquid into contact with the metal-containing film, thereby forming an oxide layer of the metal element at a surface of the metal-containing film; and a second step of bringing the etching liquid into contact with the metal-containing film on which the oxide layer has been formed.

Abstract: Provided is a method for stably supplying trimethylamine containing monomethylamine and/or dimethylamine as trace impurities at a constant makeup. The present invention relates to a method for supplying a composition including keeping a storage container that encloses a composition therein at a constant temperature of 10° C. or higher to supply a gas of the composition to a predetermined device. The composition contains, in a gaseous phase, trimethylamine, dimethylethylamine, and at least one of dimethylamine or monomethylamine.

Abstract: A method for manufacturing an electrophotographic photoconductor including a charge generating layer and a charge transport layer in this order on a cylindrical electrically-conductive support including the steps of: (i) immersing the support in a charge generating layer coating liquid, (ii) pulling the support out of the coating liquid, (iii) heat drying the support coated with the coating liquid to form the charge generating layer, (iv) cooling the charge generating layer, and (v) immersing the support on which the charge generating layer has been formed in a charge transport layer coating liquid while retaining gas inside of the support. The charge transport layer coating liquid contains a solvent having a boiling point of 34° C. or more and 85° C. or less, and the step (v) satisfies two specific conditions.

Abstract: A repairing or reinforcement method includes applying, to concrete, a pressure-sensitive or bonding adhesive sheet containing a first pressure-sensitive or bonding adhesive layer; and curing the first adhesive layer such that a first surface of the first adhesive layer is bonded to the concrete. The first adhesive layer contains an acrylic resin having a glass transition temperature of 15° C. or below, a liquid epoxy resin, a solid epoxy resin, and a curing agent.

Abstract: A method for manufacturing an electrophotographic photoconductor including a charge generating layer and a charge transport layer in this order on a cylindrical electrically-conductive support including the steps of: (i) immersing the support in a charge generating layer coating liquid, (ii) pulling the support out of the coating liquid, (iii) heat drying the support coated with the coating liquid to form the charge generating layer, (iv) cooling the charge generating layer, and (v) immersing the support on which the charge generating layer has been formed in a charge transport layer coating liquid while retaining gas inside of the support. The charge transport layer coating liquid contains a solvent having a boiling point of 34° C. or more and 85° C. or less, and the step (v) satisfies two specific conditions.

Abstract: There is provided a method for repairing or reinforcing a structure. The method includes the steps of: providing an adhesive sheet comprising an adhesive layer comprising at least a curable resin composition whose curing is promoted by irradiation with ionizing radiation and a curing aid which generates a basic substance by irradiation with ionizing radiation; attaching the adhesive sheet to a surface of the structure; and curing the adhesive layer of the adhesive sheet in a state where the adhesive layer is exposed.

Abstract: A repairing or reinforcement method includes applying, to concrete, a pressure-sensitive or bonding adhesive sheet containing a first pressure-sensitive or bonding adhesive layer; and curing the first adhesive layer such that a first surface of the first adhesive layer is bonded to the concrete. The first adhesive layer contains an acrylic resin having a glass transition temperature of 15° C. or below, a liquid epoxy resin, a solid epoxy resin, and a curing agent.

Abstract: An adhesive composition includes an epoxy-based resin, an acryl-based resin, and a curing agent. The acryl-based resin includes a triblock copolymer of methyl methacrylate-butyl acrylate-methyl methacrylate, or a modified product thereof.

Abstract: A method of repairing or reinforcing a target structure includes preparing an adhesive sheet having at least an adhesive layer and a repairing or reinforcing material, irradiating the adhesive sheet with ionizing radiation, and attaching the adhesive layer to the target structure after the irradiation with the ionizing radiation.

Abstract: There is provided a method for repairing or reinforcing a structure. The method includes the steps of: providing an adhesive sheet comprising an adhesive layer comprising at least a curable resin composition whose curing is promoted by irradiation with ionizing radiation and a curing aid which generates a basic substance by irradiation with ionizing radiation; attaching the adhesive sheet to a surface of the structure; and curing the adhesive layer of the adhesive sheet in a state where the adhesive layer is exposed.

Abstract: Provided is coating film-removing method for removing unnecessary coating film on outer peripheral surface of lower side of cylindrical substrate by dip coating, the method comprising: supplying solvent to inside of substrate; causing, through use of outer peripheral surface coating film-removing member configured to remove coating film at portion to be subjected to coating film removal in outer peripheral surface of the substrate, the outer peripheral surface coating film-removing member to abut against region ranging from upper end to lower end of coating film at the portion; and removing, under a state wherein the outer peripheral surface coating film-removing member abuts against the region, the coating film at the portion through rubbing by relatively rotating the substrate and the outer peripheral surface coating film-removing member while supplying the solvent, which is supplied to inside and then flows to lower end of the substrate, to abutting portion.

Abstract: There is provided an adhesive sheet that has initial adhesiveness, can realize bonding between metals, between a metal and an organic material, and between organic materials, and can retain an excellent adhesion strength without undergoing a temperature change. The adhesive sheet comprises a first release paper, an adhesive layer, and a second release paper stacked in that order, the adhesive layer containing an adhesive, the adhesive containing at least an acrylic resin, an epoxy resin, and a curing agent, the content of the epoxy resin being 175 to 300 parts by weight per 100 parts by weight of the acrylic resin.

Abstract: There is provided a reinforcing material equipped with a cohesive/adhesive layer, having a proper initial adhesion force to an adherend, such as an electrolyte membrane, a catalyst layer and a gas diffusion layer, and which can be temporarily fixed readily. A reinforcing material produced by forming a cohesive/adhesive layer on a substrate. The cohesive/adhesive layer includes an aliphatic polyamide, an epoxy resin and a polythiol. When the reinforcing material is used, it becomes possible to correct the position of an adherend after the adhesion of the reinforcing material to the adherend. In addition, it can prevent the formation of wrinkles on the adherend or the like upon the adhesion of the reinforcing material. Therefore, a catalyst layer laminated membrane or the like which has a reinforcing material attached thereto can be produced readily without requiring the employment of any highly skilled technique.

Abstract: Provided is coating film-removing method for removing unnecessary coating film on outer peripheral surface of lower side of cylindrical substrate by dip coating, the method comprising: supplying solvent to inside of substrate; causing, through use of outer peripheral surface coating film-removing member configured to remove coating film at portion to be subjected to coating film removal in outer peripheral surface of the substrate, the outer peripheral surface coating film-removing member to abut against region ranging from upper end to lower end of coating film at the portion; and removing, under a state wherein the outer peripheral surface coating film-removing member abuts against the region, the coating film at the portion through rubbing by relatively rotating the substrate and the outer peripheral surface coating film-removing member while supplying the solvent, which is supplied to inside and then flows to lower end of the substrate, to abutting portion.

Abstract: An adhesive composition includes an epoxy-based resin, an acryl-based resin, and a curing agent. The acryl-based resin includes a triblock copolymer of methyl methacrylate-butyl acrylate-methyl methacrylate, or a modified product thereof.

Abstract: A method of repairing or reinforcing a target structure includes preparing an adhesive sheet having at least an adhesive layer and a repairing or reinforcing material, irradiating the adhesive sheet with ionizing radiation, and attaching the adhesive layer to the target structure after the irradiation with the ionizing radiation.

Abstract: There are provided a pressure-sensitive or bonding adhesive layer that, when a repairing or reinforcing sheet is laminated onto concrete, can temporarily fix the sheet to the concrete to facilitate the repair or reinforcement of the concrete, and a pressure-sensitive or bonding adhesive sheet that includes the pressure-sensitive or bonding adhesive layer. The pressure-sensitive or bonding adhesive layer contains an acrylic resin having a glass transition temperature of 15° C. or below and further contains a liquid epoxy resin, a solid epoxy resin, and a curing agent. A pressure-sensitive or bonding adhesive sheet includes a pressure-sensitive or bonding adhesive layer and a separation film or a repairing or reinforcing sheet provided on one surface of the pressure-sensitive or bonding adhesive layer.