Abstract: Provided is a method for recycling a water-absorbing resin which contains absorbed liquid, with consideration for a resource aspect and an energy aspect. The method for recycling a water-absorbing resin which contains absorbed liquid includes: discharging the absorbed liquid from the water-absorbing resin which contains the absorbed liquid; and recovering a water-absorbing power of the water-absorbing resin.

Abstract: Provided is an aqueous ink for ink jet using a self-dispersible pigment as a coloring material, the aqueous ink being capable of recording an image having excellent color developability and the aqueous ink being capable of suppressing the deposition of an aggregate in the cap of a recording head. The aqueous ink is an aqueous ink for ink jet including a self-dispersible pigment. The self-dispersible pigment is a self-dispersible pigment in which a group represented by the general formula (1) is bonded to a surface of a particle of a pigment, and the aqueous ink has a dynamic surface tension at 10 milliseconds of 52 mN/m or less. In the general formula (1), M1s each independently represent a hydrogen atom, an alkali metal, ammonium or an organic ammonium, and * represents a bonding position to the surface of the particle of the pigment.

Abstract: The aqueous ink for ink jet includes a self-dispersible pigment in which functional groups are bonded to a surface of a particle of a pigment and include a first functional group represented by the formula (1) and a second functional group including at least one kind of group represented by the formula (2). A molar ratio of an anionic group amount of the first functional group to a total anionic group amount of the first functional group and the second functional group in the self-dispersible pigment is 0.20 times or more to 0.97 times or less. In the formula (2), two of R1 to R5 each represent COOM2 and three thereof represent hydrogen atoms, and the two COOM2s are adjacent to each other or are present at positions sandwiching one carbon atom for forming a benzene ring.

Abstract: Provided is an absorbent body that, for example, in a case where the absorbent body has been used in an absorbent article, such as a thin disposable diaper, having an absorbent body with a low proportion of fiber material (hydrophilic fibers) such as pulp, enables the absorbent article such as a disposable diaper to have an improved liquid trapping function on second and subsequent urinations over the conventional ones and particularly to have an increased amount of liquid trapped under load on the second and subsequent urinations over the conventional ones. Also provided is a water-absorbing resin that is used in the absorbent body and has an increased absorption capacity under load on the second and subsequent urinations over the conventional ones. The absorbent body includes a water-absorbing resin having a gel expansion force under a load of 4.83 kPa of 26 N or more.

Abstract: Provided are: a water-absorbing agent achieving, in a balanced manner, both good physical properties and a decrease in speed of coloration with lapse of time even if the water-absorbing agent has a high moisture absorbing speed due to having a large specific surface area; and an absorbent body having a low ratio of pulp and achieving, in a balanced manner, both good physical properties suitable for a thin disposable diaper and a decrease in speed of coloration with lapse of time.

Abstract: It is an object to provide a water-absorbing resin that while maintaining water-absorbing resin physical properties such as water absorption performance, has a sufficiently reduced odor produced during swelling. The object is attained by causing the water-absorbing resin to be a water-absorbing resin which is a surface-crosslinked water-absorbing resin, the water-absorbing resin having a volatile component concentration of 3.5 ppm or less as measured when the water-absorbing resin is caused to stand still for 15 minutes under a condition that the water-absorbing resin has a swelling capacity of 1.0-fold.

Abstract: The present invention provides an easy method for producing a water absorbent agent that has a low moisture content and that has a small dust generation amount without decreasing various physical properties. A present inventive method for producing a water absorbent agent of the present invention includes mixing not lower than 0.06 parts by mass and not higher than 5 parts by mass of an inorganic acid alkali metal salt powder with 100 parts by mass of a water-absorbent resin in an indefinite ground form.

Abstract: Provided are a method for producing a recycled water-absorbing resin which achieves reduction in deterioration of water absorption performance and reduction in coloration, and a method for producing a water-absorbing resin with use of the recycled water-absorbing resin. The present disclosure relates to, for example, a method for producing a recycled water-absorbing resin from a used absorbent article, the method including: a urea removal step of removing urea so that a urea content in the recycled water-absorbing resin becomes 2 mass % or less; and a recovery step of recovering a water-absorbing property.

Abstract: A cooling device, including at least one of following: a casing and a flow channel that is disposed inside the casing, the casing including a metal portion and a resin portion that is bonded to at least a portion of the metal portion; a casing that includes a metal, a flow channel that is disposed inside the casing, and a component that includes a resin and is bonded to a surface of the casing, and a method of manufacturing the cooling device including the steps of a first process of bonding the component to the first metal member by injection molding and a second process of connecting the second metal member with the first metal member to which the component is bonded.

Abstract: One ultraviolet-curable resin composition of the present invention includes: (A) at least one polymer selected from the group consisting of poly(meth)acrylates (a1) and polyvinyl ethers (a2); (B) a compound having at least two secondary thiol groups in a molecule thereof; (C) a photopolymerization initiator a solution of which in acetonitrile with a concentration of 500 ppm has an absorbance of 0.50 or more in an optical path length of 10 mm at 385 nm; and (D) an organic compound that emits light upon absorbing ultraviolet rays, having a maximum wavelength of an absorption spectrum in a range of 300 nm or more and 450 nm or less, and having a maximum wavelength of an emission spectrum in a range of 350 nm or more and 500 nm or less; wherein a content of the compound (B) is 10 mass % or more and 70 mass % or less based on 100 mass % of the resin composition in terms of solid content.

Abstract: The present invention provides a water absorbent agent that achieves both improvement in the water absorption time thereof and reduction in the residual monomer variation rate thereof. A present inventive method for producing a water absorbent agent having a water-absorbent resin as a main component, the method including a surface-crosslinking step for a water-absorbent resin and a mixing step for a sulfur-containing reducing agent aqueous solution, the method satisfies (1) a specific surface area of the water-absorbent resin, (2) an average droplet diameter of the sulfur-containing reducing agent aqueous solution, and a temperature of the aqueous solution, (3) stirring-mixing conditions, and (4) a heating and drying step conditions.

Abstract: A composite structure includes: a metal member; and a thermoplastic resin member bonded to the metal member, in which the metal member has a fine uneven structure at least on a metal surface to which the thermoplastic resin member is bonded, a hardness of the thermoplastic resin member measured by a type A durometer in accordance with JIS K6253 is in a range of equal to or more than A60 and equal to or less than A95, and an acid value of the thermoplastic resin member is equal to or more than 1 mgKOH/g and equal to or less than 100 mgKOH/g. The thermoplastic resin member preferably contains a urethane-based thermoplastic elastomer, an amide-based thermoplastic elastomer, and an acid-modified polyolefin.

Abstract: A temperature control unit, comprising a first metal member, a second metal member, a first resin member that is disposed between the first metal member and the second metal member, and a second resin member, the first resin member having a shape corresponding to a space for a fluid to flow between the first metal member and the second metal member, and the second resin member being joined with at least a portion of a surface of at least one of the first metal member or the second metal member.

Abstract: A heat exchange device includes a heat exchange main body portion, a joint member, and a resin sealing portion. The heat exchange main body portion has an internal flow path through which a heat exchange medium flows, and a metal wall portion including a through-hole communicating with the internal flow path. The joint member has a protruding portion and a hollow portion. The protruding portion includes an opening through which the heat exchange medium is supplied or discharged. The protruding portion protrudes toward an outside of the heat exchange main body portion through the through-hole. The hollow portion is formed for causing the opening and the internal flow path to communicate with each other. The resin sealing portion seals a gap between an inner peripheral surface of the through-hole and an outer peripheral surface of the protruding portion.

Abstract: A metal/resin composite structure includes: a metal member (M) having a fine uneven surface; and a polyamide-based resin member (A) bonded to the metal member (M), and the polyamide-based resin member (A) satisfies the following condition [A1] and condition [A2]: [A1] a glass transition temperature (Tg) observed by a differential scanning calorimeter (DSC) is equal to or higher than 85° C. and equal to or lower than 140° C.; and [A2] a crystallization temperature (Tc) observed by a differential scanning calorimeter (DSC) is equal to or higher than 250° C. and equal to or lower than 292° C.

Abstract: A metal-resin complex, comprising a space surrounded by a metal component and a resin component, the resin component comprising at least one fragile portion.

Abstract: A member for electric conduction, comprising a metal member and a resin member that is joined to at least a part of a surface of the metal member, the metal member having a roughness index, which is obtained by dividing a true surface area (m2) measured by a krypton adsorption method by a geometric surface area (m2), of 4.0 or more.

Abstract: Provided is a method for recycling a water-absorbing resin which contains absorbed liquid, with consideration for a resource aspect and an energy aspect. The method for recycling a water-absorbing resin which contains absorbed liquid includes: discharging the absorbed liquid from the water-absorbing resin which contains the absorbed liquid; and recovering a water-absorbing power of the water-absorbing resin.

Abstract: It is an object to provide a water-absorbing resin that while maintaining water-absorbing resin physical properties such as water absorption performance, has a sufficiently reduced odor produced during swelling. The object is attained by causing the water-absorbing resin to be a water-absorbing resin which is a surface-crosslinked water-absorbing resin, the water-absorbing resin having a volatile component concentration of 3.5 ppm or less as measured when the water-absorbing resin is caused to stand still for 15 minutes under a condition that the water-absorbing resin has a swelling capacity of 1.0-fold.

Abstract: Provided is a water-absorbing agent having an excellent ability to absorb and retain liquid and an excellent liquid suction power. The water-absorbing agent contains a polyacrylic acid (salt)-based water-absorbing resin as a main component and satisfies all of the following physical properties (a) to (e): (a) a weight average particle diameter (D50) is 300 ?m or more and less than 400 ?m; (b) a proportion of particles with a particle diameter of 600 ?m or more and less than 850 ?m is less than 10 weight %; (c) an average gap radius is 100 ?m or more and less than 180 ?m; (d) a CRC is 28 g/g or more and less than 34 g/g; and (e) an AAP is 24 g/g or more.