An absorber 10 contains water-absorbent resin particles 10a and a fibrous substance, a medium particle diameter of the water-absorbent resin particles 10a is 250 to 600 μm, the water-absorbent resin particles 10a contain small-diameter particles having a particle diameter of 180 μm or less, and a falloff rate of a mixture of the small-diameter particles and the fibrous substance when the mixture is subjected to shaking treatment for 10 minutes is 20% by mass or less.

An absorbent article 100 includes an absorber 10, the absorber 10 contains water-absorbent resin particles 10a, and a swelling height of the water-absorbent resin particles 10a measured by the following procedures (1) to (6) is 10 mm or less.

(1) A container having a recess having a bottom area of 50 cm.sup.2 is disposed in a state where the recess is open in a vertical direction.

(2) 1.00 g of water-absorbent resin particles are disposed in the recess.

(3) A non woven fabric is disposed on the water-absorbent resin particles in the recess.

(4) A weight having a mass of 90 g is disposed on the non-woven fabric.

(5) Physiological saline is supplied into the recess.

(6) A movement distance in a vertical direction of the weight when 300 seconds have passed from the start of swelling of the water-absorbent resin particles is measured as the swelling height.

A method includes: providing an absorber material including: a casing; and superabsorbent particles arranged therein, and using the absorber material to absorb and/or distribute liquids in an actively and/or passively cooled current-carrying system including an actively and/or passively cooled power storage system. The casing has at least two plies arranged in a planar fashion on one another. Regions of the at least two plies are connected to one another by at least one seam such that the casing is segmented in a form of pockets separated from one another. At least some of the pockets have the superabsorbent particles.

Superabsorbent mixtures M comprising at least 70% by weight of superabsorbent A having a liquid absorption of 20 g/g (T20) of less than 300 s and/or a volumetric liquid absorption under pressure 0.3 psi (2.07 kPa) (VAUL) with a τ value of less than 400 s, and at least 5% by weight of superabsorbent B having a centrifuge retention capacity (CRC) of at least 30 g/g.

The invention relates to a process for producing superabsorbent polymer particles, comprising storing acrylic acid in at least one tank (B1) at a production site for acrylic acid and in at least one tank (B2) at a production site for superabsorbent polymer particles, wherein the at least one tank (B1) at the production site for acrylic acid and the at least one tank (B2) at the production site for superabsorbent polymer particles are interconnected by one single pipe line (3) and the flow inside the pipe line (3) is temporary reversed during interruptions of the production superabsorbent polymer particles.

A fluid retention compound and more specifically, but not exclusively, a fluid retention compound for use in agriculture, mining and construction. Retention of water using moisture absorbers is known in the art and used to improve the water-holding capacity of various media. A problem with existing moisture absorbers is the relatively ineffective rate at which water is retained and nutrients absorbed. In accordance with the invention there is provided a fluid retention compound including a superabsorbent polymer, an adsorbent, and a pH modifier. It is envisaged that the invention will provide a fluid retention compound which increases the efficacy of its water holding capacity, nutrient uptake and adsorption of other substances.

A water-absorbent resin (21) has a shape in which a plurality of particles (40) having a substantially spherical shape is connected in a chain shape.

The present disclosure relates to a method of predicting physical properties, in particular performance parameters, of superabsorbent polymers.

A process for manufacturing particles of water-absorbing material is provided. The process includes providing a powder bed composed of an absorptive powder comprising a water-absorbing polysaccharide onto a surface; releasing an aqueous solution from a solution dispenser so as to contact the powder bed, thereby forming a solution-impregnated humid material; letting the solution-impregnated humid material agglomerate in substantially shear-less conditions to form an agglomerated humid material, the solution-impregnated humid material being supported by the surface; and drying the agglomerated humid material, thereby forming the particles.

A process for producing superabsorbent particles by polymerizing a monomer solution or suspension, comprising drying of the resultant aqueous polymer gel in an air circulation belt drier, grinding, classifying, and optionally thermal surface postcrosslinking, wherein the aqueous polymer gel is introduced into the air circulation belt drier by means of an oscillating conveyor belt, the underside of the revolving conveyor belt is freed of adhering polymer gel by means of at least one stripper device, and the underside of the revolving conveyor belt is sprayed with water.