Abstract: The present invention relates to a pressure-sensitive adhesive composition including a compound having a substituent represented by the general formula (1) described in the specification, in which when each of R1 and R2 in the substituent represented by the general formula (1) represents a hydrogen atom, a distance between an oxygen atom of —OR1 and an oxygen atom of —OR2 is 1.31 ? or more and 4.70 ? or less, a pressure-sensitive adhesive layer formed of the pressure-sensitive adhesive composition, and a pressure-sensitive adhesive sheet comprising the pressure-sensitive adhesive layer.

Abstract: Provided is a carbon-dioxide capture and treatment system comprising: a carbon dioxide-enriched mixture gas generation device comprising a separation membrane capable of increasing a carbon dioxide concentration of a mixture gas taken therein, thereby generating a carbon dioxide-enriched mixture gas; a carbon dioxide conversion device configured to convert carbon dioxide in the enriched mixture gas received from the carbon dioxide-enriched mixture gas generation device, into a chemically stable compound; a final treatment device comprising an adsorbent, wherein the final treatment device is configured to adsorb the carbon dioxide by the adsorbent, thereby separating the carbon dioxide from other gas components; and a carbon dioxide direct capture device configured to take in air contained in an ambient environment, and supply the taken-in air to the final treatment device or an upstream side thereof in the carbon-dioxide capture and treatment system.

Abstract: The present invention provides a new separation functional layer suitable for separating an acid gas from a gas mixture containing the acid gas. A separation functional layer of the present invention includes polyimide. The polyimide includes a structural unit A1 derived from a tetracarboxylic dianhydride having a six-membered ring acid anhydride structure, and a structural unit B1 derived from diamine. At least one of the structural unit A1 and the structural unit B1 has at least one functional group selected from the group consisting of a carboxyl group, a hydroxyl group, a thiol group, and metal salts of these groups.

Abstract: The present invention provides a separation membrane suitable for suppressing variation in separation performance. A separation membrane 10 of the present invention includes a separation functional layer 1, a porous support member 3 supporting the separation functional layer 1, and an intermediate layer 2 that is disposed between the separation functional layer 1 and the porous support member 3 and is formed from an emulsion resin composition. The emulsion resin composition includes, for example, a silicone-based polymer, a hydrophilic polymer, etc.

Abstract: The present invention provides a gas separation system suitable for separating a gas mixture efficiently. A gas separation system of the present invention includes: a first separation membrane that separates a gas mixture into a first permeated gas and a first non-permeated gas; and a second separation membrane that separates the first non-permeated gas into a second permeated gas and a second non-permeated gas. The gas mixture contains a gas A and a gas B different from the gas A. The first separation membrane allows the gas A to preferentially permeate therethrough. The second separation membrane allows the gas B to preferentially permeate therethrough. A membrane area of the first separation membrane is smaller than a membrane area of the second separation membrane. The gas separation system recovers each of the second permeated gas and the second non-permeated gas.

Abstract: The present invention provides a separation functional layer that exhibits suppressed leakage of an ionic liquid and has an enhanced strength. A separation functional layer of the present invention includes: an ionic liquid; a polymer A that forms a crystal structure in the ionic liquid; and a polymer B different from the polymer A. A separation membrane of the present invention includes: the separation functional layer; and a porous support member supporting the separation functional layer.

Abstract: The present invention provides a method for manufacturing a separation membrane suitable for transferring a separation functional layer and an intermediate layer from a release liner to a porous support member. The manufacturing method of the present invention is a method for manufacturing a separation membrane 10 including a separation functional layer 1, a porous support member 3, and an intermediate layer 2. The manufacturing method includes: forming the intermediate layer 2 on a first laminate 15 having a release liner 5 and the separation functional layer 1; bonding the intermediate layer 2 of a second laminate 16 having the release liner 5, the separation functional layer 1, and the intermediate layer 2 in this order to the porous support member 3 and thereby forming a third laminate 17; and removing the release liner 5 from the third laminate 17.

Abstract: The present invention relates to a pressure-sensitive adhesive composition containing a base polymer, in which the base polymer is a copolymer containing structures derived from a water-insoluble hydrophilic monomer (a) and a nitrogen-containing hydrophilic monomer (b), and a content ratio of the structure derived from the water-insoluble hydrophilic monomer (a) in the base polymer is 40 mass % or more.

Abstract: Provided is a carbon-dioxide capture and treatment system comprising: a carbon dioxide-enriched mixture gas generation device comprising a separation membrane capable of increasing a carbon dioxide concentration of a mixture gas taken therein, thereby generating a carbon dioxide-enriched mixture gas; a carbon dioxide conversion device configured to convert carbon dioxide in the enriched mixture gas received from the carbon dioxide-enriched mixture gas generation device, into a chemically stable compound; a final treatment device comprising an adsorbent, wherein the final treatment device is configured to adsorb the carbon dioxide by the adsorbent, thereby separating the carbon dioxide from other gas components; and a carbon dioxide direct capture device configured to take in air contained in an ambient environment, and supply the taken-in air to the final treatment device or an upstream side thereof in the carbon-dioxide capture and treatment system.

Abstract: The present invention provides a gas separation system suitable for reducing energy required to separate a gas mixture. A gas separation system of the present invention includes: a first separation membrane unit that separates a gas mixture containing carbon dioxide and nitrogen into a first permeated gas and a first non-permeated gas; a second separation membrane unit that separates the first permeated gas into a second permeated gas and a second non-permeated gas; a first decompression device that decompresses a permeation-side space of the first separation membrane unit; and a second decompression device that decompresses a permeation-side space of the second separation membrane unit.

Abstract: The present invention relates to an adhesive composition containing a base polymer and a moisture-curable component, wherein the base polymer contains a polymer having no functional group which reacts with the moisture-curable component, and a water content of the base polymer after storage at 25° C. and 50% RH for 24 hours is 0.1% by weight or less, and wherein the moisture-curable component is contained in an unreacted state, an adhesive layer made from the adhesive composition, and an adhesive sheet including the adhesive layer.

Abstract: The present invention relates to a pressure-sensitive adhesive composition including a compound having a substituent represented by the general formula (1) described in the specification, in which when each of R1 and R2 in the substituent represented by the general formula (1) represents a hydrogen atom, a distance between an oxygen atom of —OR1 and an oxygen atom of —OR2 is 1.31 ? or more and 4.70 ? or less, a pressure-sensitive adhesive layer formed of the pressure-sensitive adhesive composition, and a pressure-sensitive adhesive sheet comprising the pressure-sensitive adhesive layer.

Abstract: The present invention relates to an adhesive composition containing a base polymer, a water-absorbing material, and a moisture-curable component, wherein the moisture-curable component is contained in an unreacted state, an adhesive layer made from the adhesive composition, and an adhesive sheet including the adhesive layer.

Abstract: The present invention relates to an adhesive sheet including an adhesive layer comprising an adhesive composition containing a base polymer and a moisture-curable component, wherein an adhesive surface is peelably covered with a layer having moisture permeability of 5 g/m2·24 hrs or less.

Abstract: The present invention relates to an adhesive composition containing a base polymer and a water-absorbing material, wherein Young's modulus when an adhesive layer is formed is 450 kPa or more, an adhesive layer comprising the adhesive composition, and an adhesive sheet including the adhesive layer.

Abstract: The present invention relates to an adhesive composition containing a base polymer and a moisture-curable component, wherein a degree of swelling when an adhesive layer is formed is 2.5 or less, an adhesive layer comprising the adhesive composition, and an adhesive sheet comprising the adhesive layer.

Abstract: Provided are an adhesive composition which can give high adhesive force to a wet surface and also ensures storage stability of a moisture-curable component, an adhesive layer made from the adhesive composition, and an adhesive sheet including the adhesive layer. An adhesive composition including a base polymer and a moisture-curable component, wherein the base polymer contains a polymer having a functional group that becomes a functional group capable of reacting with the moisture-curable component through a reaction with water, and the moisture-curable component is contained in an unreacted state.

Abstract: An object of the present invention is to provide a transparent adhesive film which is hardly visually recognized, that is, inconspicuous, and thereby has little influence on design properties of an adherend. The present invention relates to a transparent adhesive film including: a base material having an uneven surface; and an adhesive layer laminated on a surface of the base material on a side opposite to the uneven surface, in which a mean spacing Sm of an unevenness on the uneven surface of the base material is 45 ?m or more, an average tilt angle ?a of the unevenness on the uneven surface of the base material is 0.5° to 15°, and a 60-degree glossiness GL on the uneven surface of the base material is 60% or less.

Abstract: A pressure-bonding adhesive member having a superior positional-adjustment function relative to an adherend having a surface mainly constituted of low-polarity plastic typified by polypropylene, and capable of adhering to the adherend with a sufficiently high adhesive force after positional adjustment. The pressure-bonding adhesive member containing an adhesive layer and plural convex parts formed on one surface of the adhesive layer, wherein, when the convex parts are in contact with a polypropylene plate and the adhesive layer is not in contact with the polypropylene plate, the adhesive member shows a frictional force of not more than 0.6 N/cm2 on the polypropylene plate and a shear adhesive force of not less than 50 N/cm2 to the polypropylene plate.

Abstract: The present invention relates to an adhesive composition containing a base polymer, a water-absorbing material, and a moisture-curable component, wherein the moisture-curable component is contained in an unreacted state, an adhesive layer made from the adhesive composition, and an adhesive sheet including the adhesive layer.