Evonik Stockhausen Gmbh

Evonik Degussa Gmbh

Evonik Corporation

Stockhausen Gmbh

Heinz Bremus

Scott J Smith

Frank Loeker

Stan McIntosh

Rüdiger Gerlach

Scott Smith

The present invention relates to a process for the production of water-absorbing polymer structures, comprising the process steps of providing of an aqueous monomer solution comprising a polymerizable, monoethylenically unsaturated monomer (&#x3b1;1) carrying acid groups or a salt thereof; free-radical polymerization of the aqueous monomer solution to give a polymer gel, drying of the optionally comminuted polymer gel to give water-absorbing polymer structures, and surface post-crosslinking of the optionally ground and sieved water-absorbing polymer structures, wherein a thermoplastic polymer is added to the aqueous monomer solution before process step ii) or during process step ii), preferably before process step ii), or II) the polymer gel after process step ii) and before process step iv) or during process step iv), preferably before process step iv), or III) the water-absorbing polymer structure after process step iv).

Water-absorbing polymer structures produced using polymer dispersions

The invention relates to absorptive, crosslinked polymers which are based on partly neutralized, monoethylenically unsaturated monomers carrying acid groups wherein the absorptive crosslinked polymer may be coated with a thermoplastic polymer, and have improved properties, in particular in respect of their capacity for transportation of liquids in the swollen state, and which has a high gel bed permeability and high centrifuge retention capacity.

Superabsorbent polymer with high permeability

A process for producing and a powdery water-absorbing polymers comprising: Also disclosed are a transport process, a composite, chemical products, and a use of a thermoplastic adhesive.

Powdery water-absorbing polymers with fine particles bound by thermoplastic adhesives

Water-absorbing polymer particles with thermoplastic coating

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Kevelaer, Germany

Heinz Bremus