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. The absorbent body contains a hydrophilic base material and a water-absorbing agent which contains: surface-crosslinked water-absorbing resin particles having a non-uniformly pulverized shape; α-hydroxycarboxylic acid (salt); and an aminocarboxylic acid-based chelating agent and/or a phosphorus-based chelating agent, a point plotted along an x-axis that represents an amount (x.sub.1 mol %) of α-hydroxycarboxylic acid (salt) extracted from the water-absorbing agent and along a y-axis that represents an amount (y.sub.1 mmol %) of an aminocarboxylic acid-based chelating agent and/or a phosphorus-based chelating agent extracted from the water-absorbing agent being within a range that satisfies a specific relational formula of x.sub.1 and y.sub.1, the water-absorbing agent having a moisture absorbing speed of 120 mg/g/hr or more at a temperature of 40±1° C. at a relative humidity of 75±1% RH.

A HIPE foam may including a vinyl-based crosslinked polymer as a base material resin. The vinyl-based crosslinked polymer may be formed by crosslinking a polymer of a styrene-based monomer and/or an acryl-based monomer. An apparent density ρ of the HIPE foam may be 35 kg/m.sup.3 or more and 500 kg/m.sup.3 or less. A molecular weight between crosslinking points of the vinyl-based crosslinked polymer forming the HIPE foam may be 2×10.sup.3 or more and 2×10.sup.5 or less. The HIPE foam may be used as, for example, a machinable material or an impact absorbing material.

A HIPE foam may including a vinyl-based crosslinked polymer as a base material resin. The vinyl-based crosslinked polymer may be formed by crosslinking a polymer of a styrene-based monomer and/or an acryl-based monomer. An apparent density ρ of the HIPE foam may be 35 kg/m.sup.3 or more and 500 kg/m.sup.3 or less. A molecular weight between crosslinking points of the vinyl-based crosslinked polymer forming the HIPE foam may be 2×10.sup.3 or more and 2×10.sup.5 or less. The HIPE foam may be used as, for example, a machinable material or an impact absorbing material.

The present disclosure relates to a preparation method for a super absorbent polymer film. Specifically, it relates to a preparation method for a new type of super absorbent polymer film, which is thin and exhibits excellent absorption performance. In addition, the super absorbent polymer film of the present disclosure has excellent flexibility and excellent mechanical properties, is free from scattering or leaking, and does not require an auxiliary substance such as pulp, so that products can be made thinner and the manufacturing process and costs may be reduced.

The present disclosure relates to a preparation method for a super absorbent polymer film. Specifically, it relates to a preparation method for a new type of super absorbent polymer film, which is thin and exhibits excellent absorption performance. In addition, the super absorbent polymer film of the present disclosure has excellent flexibility and excellent mechanical properties, is free from scattering or leaking, and does not require an auxiliary substance such as pulp, so that products can be made thinner and the manufacturing process and costs may be reduced.

A solid polymer electrolyte precursor composition includes (i) one or more organic solvents; (ii) one or more cellulosic polymers dissolved in the organic solvent(s); (iii) one or more polymerizable components dissolved or dispersed in the organic solvent(s); (iv) one or more photo-initiators dissolved or dispersed in the organic solvent(s), where at least one of the one or more photo-initiators, following irradiation with light, promotes polymerization of at least one of the one or more polymerizable components; (v) one or more lithium ion sources dissolved or dispersed in the organic solvent(s); (vi) one or more plasticizers dissolved or dispersed in the organic solvent(s); and (vii) one or more ceramic particles dissolved or dispersed in the organic solvent(s).

A solid polymer electrolyte precursor composition includes (i) one or more organic solvents; (ii) one or more cellulosic polymers dissolved in the organic solvent(s); (iii) one or more polymerizable components dissolved or dispersed in the organic solvent(s); (iv) one or more photo-initiators dissolved or dispersed in the organic solvent(s), where at least one of the one or more photo-initiators, following irradiation with light, promotes polymerization of at least one of the one or more polymerizable components; (v) one or more lithium ion sources dissolved or dispersed in the organic solvent(s); (vi) one or more plasticizers dissolved or dispersed in the organic solvent(s); and (vii) one or more ceramic particles dissolved or dispersed in the organic solvent(s).

Disclosed is a photosensitive resin composition containing a polymerizable component and used to form a resin layer in an imprint method including forming a reverse pattern of a pattern of a mold on a resin layer by using the mold having the pattern. The polymerizable component contains an organic sulfur compound. A viscosity of the photosensitive resin composition at 25° C. is less than 20 mPa.Math.s.

Disclosed is a photosensitive resin composition containing a polymerizable component and used to form a resin layer in an imprint method including forming a reverse pattern of a pattern of a mold on a resin layer by using the mold having the pattern. The polymerizable component contains an organic sulfur compound. A viscosity of the photosensitive resin composition at 25° C. is less than 20 mPa.Math.s.

The preparation method of the solid polymer electrolyte includes the following steps: S1, adding a vinyl boron fluorine monomer, a vinyl polyether monomer, a modified monomer, and a functional polymer into a solvent, adding an initiator for reaction, and after performing a purification treatment to obtain a polymer system B; S2, adding the polymer system B, a lithium salt, a filler, and an auxiliary agent into a solvent, and adding a crosslinking agent to obtain a mixed solution, and coating the mixed solution on a mold uniformly for reaction; S3, obtaining the solid polymer electrolyte. The obtained solid polymer electrolyte, a positive electrode plate, and a negative electrode plate are assembled into a solid-state battery core, and then a tab welding, a heat treatment, and an encapsulation treatment are performed to obtain a lithium ion battery.