Basf Se Corporation

Sylvia Bertha

Matthias Weismantel

Rüdiger Funk

Marco Krüger

Ulrich Schröder

John Joseph Louden

Oskar Stephan

Monte Alan Peterson

Ruediger Funk

Karl Possemiers

Leigh R Blair

Kevin D Heitzhaus

Bruce Storey

Tom Catternan

Gerald Gruenewald

A process for producing superabsorbents, comprising the steps of i) classifying the superabsorbent particles by means of one or more sieves and ii) removing metallic impurities by means of one or more magnetic separators, wherein classification is accomplished using sieves made of a wire mesh, the wires of the wire mesh consist of a steel composed of at least 70% by weight of iron, at least 10% by weight of chromium and less than 2.5% by weight of nickel, and the throughput of superabsorbent particles in the magnetic separator is in the range from 2.0 to 6.5 g/s per cmof free cross-sectional area.

Method for the production of superabsorbers

The present invention relates to a process for producing fluid-absorbent cores, comprising mixing a fibrous material and fluid-absorbent polymer particles having low moisture content and low apparent density and pressing the obtained mixture under specific conditions.

Fluid-absorbent articles

A process for producing water-absorbing polymer particles, comprising polymerization, drying, comminution, classification and recycling of the undersize obtained in the classification, wherein the recycled undersize is coated with a reducing agent and/or inorganic particles.

Method for producing water-absorbing polymer particles

The invention relates to the production of superabsorbent polymers comprising polymerizing a monomer solution on a continuous belt reactor, wherein the consistency of the formed polymer gel at the end of the continuous belt reactor is controlled by adjusting the intensity of energy-rich radiation.

Production of superabsorbent polymers on a continuous belt reactor

Water-absorbing composites comprising at least two particulate water-absorbing polymers having different pH values and at least one fibrous material are produced without premixing the water-absorbing polymers and are used in hygiene articles.

Method for producing water-absorbing composite materials

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Frankenthal, Germany

Sylvia Bertha