Abstract: A process for producing water-absorbing polymer particles by suspension polymerization and thermal surface postcrosslinking, wherein the base polymer obtained by suspension polymerization has a centrifuge retention capacity of at least 37 g/g and the thermal surface postcrosslinking is conducted at 100 to 190° C.

Abstract: A process for producing water-absorbing polymer particles by suspension polymerization and thermal surface postcrosslinking, wherein the base polymer obtained by suspension polymerization has a centrifuge retention capacity of at least 37 g/g and the thermal surface postcrosslinking is conducted at 100 to 190° C.

Abstract: The present invention relates to a process for producing surface-postcrosslinked water-absorbent polymer particles comprising polymerizing droplets of a monomer solution, wherein water-absorbent polymer particles having an average particle diameter from 150 to 400 ???, an amount of water-absorbent polymer particles having a particle size of less than 100 ??? of less than 5% by weight and an amount of water-absorbent polymer particles having a particle size of more than 500 ??? of less than 5% by weight are coated with at least one surface-postcrosslinker and thermal surface-postcrosslinked.

Abstract: The present invention relates to a process for producing surface-postcrosslinked water-absorbent polymer particles comprising polymerizing droplets of a monomer solution, wherein water-absorbent polymer particles having an average particle diameter from 420 to 700 ?m, an amount of water-absorbent polymer particles having a particle size of less than 300 ?m of less than 5% by weight and an amount of water-absorbent polymer particles having a particle size of more than 800 ?m of less than 5% by weight are coated with at least one surface-postcrosslinker and thermal surface-postcrosslinked.

Abstract: A process for producing water-absorbing polymer particles by suspension polymerization and thermal surface postcrosslinking, wherein the base polymer obtained by suspension polymerization has a centrifuge retention capacity of at least 37 g/g and the thermal surface postcrosslinking is conducted at 100 to 190° C.

Abstract: A process for removing residual monomers from water-absorbing polymer particles by thermally aftertreating the water-absorbing polymer particles in a mixer with rotating mixing tools at a temperature of at least 60° C. in the presence of water and of a surfactant.

Abstract: A process for removing residual monomers from water-absorbing polymer particles by thermally aftertreating the water-absorbing polymer particles in a mixer with rotating mixing tools at a temperature of at least 60° C. in the presence of water and of a surfactant.

Abstract: The invention relates to a process for producing a water-absorbing material by coating water-absorbing polymer particles with a film-forming polyurethane and silica, heat treating the coated particles and coating the heat-treated particles with pyrogenic hydrophilic silica. The invention further relates to the water-absorbing material obtainable according to the process of the invention. The water-absorbing material has improved wicking ability (FHA) and core shell saline flow conductivity (CS-SFC).

Abstract: Absorbent structures comprising vacuum-treated (optionally coated) post-crosslinked water-absorbing polymeric particles, obtainable by vacuum-treating and optionally plasma-treating post-crosslinked water-absorbent polymeric particles (that may optionally be coated), the resulting vacuum-treated post-crosslinked water-absorbing polymeric particles having an improved absorption, whilst having good gel bed permeability.

Abstract: The present invention relates to a water-absorbing material obtainable by a process comprising the steps of: a) obtaining, optionally coated, post-crosslinked water-absorbing polymeric particles; b) exposing said particles of step a) to a vacuum-treatment, at a pressure of from 0.0001 mbar to 700 mbar; and c) optionally exposing said particles of step b) to a plasma-treatment, and processes for their production.

Abstract: The invention relates to a process for producing a water-absorbing material by coating water-absorbing polymer particles with a film-forming polyurethane and silica, heat treating the coated particles and coating the heat-treated particles with pyrogenic hydrophilic silica. The invention further relates to the water-absorbing material obtainable according to the process of the invention. The water-absorbing material has improved wicking ability (FHA) and core shell saline flow conductivity (CS-SFC).

Abstract: Absorbent structures comprising vacuum-treated (optionally coated) post-crosslinked water-absorbing polymeric particles, obtainable by vacuum-treating and optionally plasma-treating post-crosslinked water-absorbent polymeric particles (that may optionally be coated), the resulting vacuum-treated post-crosslinked water-absorbing polymeric particles having an improved absorption, whilst having good gel bed permeability.