Basf Se Corporation

Tina Mark

Thomas Daniel

Erich Lutz

Stefan Molter

Stephan Bauer

Alexander Wissemeier

Francisco Javier Lopez Villanueva

Michael Seufert

Alban Glaser

Anna Kowalski

Yvonne Hagen

Alexandra Wiedemann

Lydia König

Jorge Sanz-Gomez

Lydia Gleich

Daniel Thomas

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&#xb0; C.

Method for producing water-absorbing polymer particles by suspension polymerization

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.

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.

The invention relates to a process for producing polymer composites suitable for absorbing and storing aqueous liquids, to the polymer composites obtainable by this process, and to the use of the polymer composites. The process comprises free-radical polymerization of a monomer composition M comprising 50 to 100% by weight, based on the total amount of monomers A and B, of at least one monomer A having one ethylenic double bond and at least one neutralizable acid group, 0 to 50% by weight of optionally one or more comonomers B which are different than the monomers A and have one ethylenic double bond, and 1 to 10% by weight, based on the total amount of monomers A and B, of at least one crosslinker C.

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Hassloch, Germany

Tina Mark