Basf Se Corporation

Erich Lutz

Thomas Daniel

Tina Mark

Stefan Molter

Anna Kowalski

A process for producing water-absorbing polymer particles by suspension polymerization and thermal surface postcrosslinking, wherein the agglomerated 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&#xb0; C.

Method for producing water-absorbing polymer particles by suspension polymerization

A process for agglomerating superabsorbent particles, wherein polymer particles having a particle size of 250 &#x3bc;m or less are dispersed in a hydrophobic organic solvent, the dispersed polymer particles are mixed with an aqueous monomer solution, the amount of unneutralized monomer applied with the monomer solution being from 0.5% to 80% by weight, based on the dispersed polymer particles, and the monomer solution is polymerized.

Method for producing super absorber particles

A process for agglomerating superabsorbent particles, wherein polymer particles having a particle size of 250 &#x3bc;m or less are dispersed in a hydrophobic organic solvent, the dispersed polymer particles are mixed with an aqueous monomer solution, the total amount of water applied to the dispersed polymer particles being at least 100% by weight, based on the dispersed polymer particles, and the monomer solution is polymerized.

Method for the agglomeration of superabsorber particles

A process for producing water-absorbing polymer particles by suspension polymerization, wherein the polymerization is conducted in the presence of dissolved oxygen.

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Altrip, Germany

Erich Lutz