Huels Aktiengesellschaft

Evonik Degussa Gmbh

Evonik Operations Gmbh

Litarion Gmbh

Li-tec Battery Gmbh

Rolf-Walter Terwonne

Christian Hying

Andreas Gutsch

Matthias Pascaly

Dieter Thunig

Harald Sturm

Oliver Conradi

Gerhard Hörpel

Kira Khaletskaya

David Grzenia

Bastian Matthias Brugger

Michael Kube

Hans-Jürgen Nettelnbreker

Alexander Paasche

Witold Friedemann Rex

Henrik Hahn

Peter Pilgram

Denny Thiemig

Witold Friedeman Rex

The present invention provides a composite body having, on a porous substrate and in the interstices of the substrate that includes fibers, preferably of an electrically nonconductive material, a porous layer (1) composed of oxide particles bonded to one another and partly to the substrate that include at least one oxide selected from oxides of the elements Al, Zr, Ti and Si, preferably selected from AlO, ZrO, TiOand SiO, and having, at least on one side, a further porous layer (2) including oxide particles bonded to one another and partly to layer (1) that include at least one oxide selected from oxides of the elements Al, Zr, Ti and Si, preferably selected from AlO, ZrO, TiOand SiO, where the oxide particles present in layer (1) have a greater median particle size than the oxide particles present in layer (2), which is characterized in that the median particle size (d) of the oxide particles in layer (1) is from 0.5 to 4 &#x3bc;m and the median particle size (d) of the oxide particles in layer (2) is from 0.015 to 0.15 &#x3bc;m, preferably 0.04 to 0.06 &#x3bc;m, a process for producing corresponding composite bodies and for the use thereof, especially in gas separation.

Composite body

The present invention relates to a membrane comprising a flat, flexible substrate having a plurality of openings and having a porous inorganic coating situated on and in said substrate, the material of the substrate being selected from woven or non-woven, electrically non-conductive fibers, characterized in that the substrate comprises polyaramide fibers that are pure or connected to fibers of the further polymer or at least of one of these further polymers, wherein the fibers of at least one of said further polymers comprise a melting point that is lower than the decomposition point of the polyaramide fibers.

Ceramic membrane having support materials comprising polyaramid fibers and method for producing said membranes

The invention relates to a process for producing a separator comprising the steps of: providing a sheetlike porous substrate, a solvent, ceramic particles and an adhesion promoter; preparing a slip by mixing the solvent, the adhesion promoter and the ceramic particles; coating the substrate with the slip and thermally drying the coated substrate to obtain the separator. The problem addressed is that of specifying a process useful for producing separators having a higher ceramic content. The problem is solved when the solvent used is a mixture of water and at least one organic component; the adhesion promoter used is a mixture of silanes and at least one thermally crosslinkable acrylic polymer; the slip is admixed with a carboxylic acid preparation and also with a defoamer component free from silicone oil.

Separator comprising an organic-inorganic adhesion promoter

A process for the production of a thermoplastic composition for molded parts having improved impact resistance, transparency, surface gloss, and weatherability, and formed of a hard inner core of crosslinked polystyrene, a rubber-elastic intermediate layer of crosslinked polyacrylic ester, and an outer layer of polyvinyl chloride, wherein the inner core thereof is produced by the steps of:

Process for the production of thermoplastic compositions and

A pourable polyvinyl chloride having an acrylate content of at least 30 percent by weight, is formed through a process wherein the emulsion polymerization of an acrylic acid ester forming soft polymers is conducted together with a diene crosslinking agent

Process for the production of a pourable polyvinyl chloride with high

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Marl, Germany

Rolf-Walter Terwonne