Provided is a method of preparing a superabsorbent polymer, which enables preparation of the superabsorbent polymer exhibiting an improved absorption rate while maintaining excellent absorption performances by minimizing a surface damage phenomenon of the superabsorbent polymer in a pneumatic conveying process during the preparation process of the superabsorbent polymer or in a pneumatic conveying process of the finally prepared superabsorbent polymer.

The present disclosure relates to a method for preparing a super absorbent polymer. More specifically, it relates to a method for preparing a super absorbent polymer capable of improving drying efficiency, reducing a generation amount of refines, and simultaneously improving absorption performance, in particular, absorbing under pressure and permeability of the finally prepared super absorbent polymer by controlling granulation strength of the extruded fine reassembly.

Compositions include an aqueous organic-based gellant system and nicotine or a salt thereof. The compositions are readily prepared and stored in cartridges or used directly in a device for delivering nicotine to a user.

The present invention relates to a super-absorbent polymer having excellent properties, both centrifugal retention capacity (CRC) and absorption under pressure (AUP) having been improved by introducing a surface crosslinked layer crosslinked by surface-modified inorganic particles, and to a method for preparing the same. The super-absorbent polymer comprises: a base resin powder containing a crosslinked polymer of water-soluble ethylene-based unsaturated monomers having an at least partially neutralized acidic group; and a surface crosslinked layer formed on the base resin powder, wherein inorganic particles may be chemically bound to the crosslinked polymer contained in the surface crosslinked layer, via an oxygen-containing bond or a nitrogen-containing bond.

The present application provides a semi-permeable hydrogel composition comprising an alginate matrix that is covalently crosslinked in its periphery to a multi-armed water soluble polymer, along with related methods and uses thereof.

A method of processing a water-dispersible, polymer-based material in a bath of a water-based solution includes providing a molten water-dispersible polymer material having monovalent cations. The water-dispersible polymer is introduced into a water bath comprising multivalent salt dissociated in the water bath into multivalent cations and anions. The water-dispersible polymer is retained within the water bath with the dissociated multivalent cations to quench the water-dispersible, polymer-based material while the monovalent cations proximate a surface of the water-dispersible polymer are exchanged with multivalent cations to form a barrier that temporarily resists dispersion of the water-dispersible, polymer-based material within the water bath. The method includes removing the water-dispersible polymer from water bath after the exchange step.

Provided are a superabsorbent polymer and a preparation method thereof, including preparing a base resin and conducting surface modification of the base resin in the presence of an inorganic filler. The method of preparing the superabsorbent polymer of the present invention may provide a superabsorbent polymer having improved rewetting property and liquid permeability.

A superabsorbent polymer having optimized gel strength and exhibiting an improved absorption rate without increasing a specific surface area by chemical foaming or a physical method, and a preparation method thereof, are provided.

According to the present disclosure, a method of preparing polymeric microparticles comprising further crosslinking with an organic crosslinking agent after crosslinking with metal ions, polymeric microparticles, medical compositions, cosmetic compositions, medical articles and cosmetic articles comprising the same can be provided.

A method for producing a crosslinking polymer gel, the method including polymerizing a monomer composition containing at least one (meth)acrylic acid compound selected from the group consisting of (meth)acrylic acid and a salt thereof and benzaldehyde to obtain a crosslinking polymer gel, in which a centrifuge retention capacity of crosslinking polymer particles obtained by coarsely crushing, drying, and pulverizing the crosslinking polymer gel is 60 g/g or more. A monomer composition for obtaining a crosslinking polymer gel, the monomer composition containing at least one (meth)acrylic acid compound selected from the group consisting of (meth)acrylic acid and a salt thereof, and benzaldehyde, in which a centrifuge retention capacity of crosslinking polymer particles obtained by coarsely crushing, drying, and pulverizing the crosslinking polymer gel is 60 g/g or more.