Evonik Operations Gmbh

Evonik Superabsorber Gmbh

Evonik Stockhausen Gmbh

Evonik Corporation

Evonik Degussa Gmbh

Scott Smith

Jian Qin

Richard Norris Dodge, Ii

Gonglu Tian

Mark Joy

Whei-Neen Hsu

Markus Frank

Christoph Loick

Michael M Azad

Laurent Wattebled

Frank Loeker

Jochen Kleinen

Steffen Fischer

Xinyuan Yang

Anne Ix-Mund

Nicolaas De Bruin

Annette Zur Mühlen

Jessica Pillat

Diedrich Schmidt

Stanley McIntosh

Lisa Maus

Joanna Ploch

Geoffrey W Blake

David L Bergman Jr

Bernfried Andreas Messner

Matthew T Ondisco

Michael Azad

Mark C Joy

The present invention relates to a process to make continuous strand polymer comprising the following steps: a) providing a monomer mixture comprising water, a monomer, a crosslinker and an initiator; b) transporting the monomer mixture of step a) into a confining means wherein the monomer mixture is confined in said confining means; c) initiating polymerization of the monomer mixture in the confining means to make a continuous strand polymer; and d) emitting the continuous strand polymer from the confining means wherein the continuous strand polymer has a defined cross-sectional profile comprising an initial cross sectional diameter of at least 0.1 mm. The present invention is further directed to a process of making a continuous strand superabsorbent polymer.

Continuous strand superabsorbent polymerization

The present invention relates to an anti-stick processing aid for use in a process for producing water-absorbing polymers, comprising the steps of: i) mixing (&#x3b1;1) 0.1 to 99.999% by weight of polymerizable, ethylenically unsaturated monomers containing acid groups, or salts thereof, (&#x3b1;2) 0 to 70% by weight of monomers copolymerizable with (&#x3b1;1), (&#x3b1;3) 0.001 to 10% by weight of crosslinkers, (&#x3b1;4) 0 to 30% by weight of polymers, (&#x3b1;5) 0 to 80% by weight of water, and (&#x3b1;6) 0 to 20% by weight of assistants, (ii) free-radical polymerization with crosslinking to form a hydrogel polymer, (iii) drying the hydrogel polymer, (iv) grinding and sieving the hydrogel polymer, (v) surface postcrosslinking the hydrogel polymer and (vi) drying and finishing the water-absorbing polymer,wherein the anti-stick processing aid is used before and/or in steps (iii).

Anti-stick processing aids and use thereof in the production of water-absorbing particles

The present invention relates to a polymeric foam, and a process for making the polymeric foam comprising the steps of a) providing a monomeric solution consisting of a polymerizable, ethylenically unsaturated monomer containing one or more acid groups, water and one or more crosslinkers having more than one polymerizable group per molecule; b) introducing a blowing agent to the monomer solution; c) treating the monomer solution with an ultrasonic treatment; d) introducing one or more initiation agents to the monomer solution; and e) polymerizing the monomer solution.

Absorbent polymeric foam for shoe insoles

The present invention relates to a water-absorbing polymer and to a process for preparation, including finishing the water-absorbing polymer, with 0.0001 to 3% by weight, of a peroxo compound, based on the acrylic acid, after the polymerization is treated, and to a process for producing a hydrogel polymer, to the product of the process and to use.

Superabsorbent polymers with improved odor control capacity and process for the production thereof

The invention relates to absorptive, crosslinked polymers which are based on partly neutralized, monoethylenically unsaturated monomers carrying acid groups, 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

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Düsseldorf, Germany

Scott Smith