Huels Aktiengesellschaft

Evonik Degussa Gmbh

Huels Aktiengesellschaft - Pb 15

Bernd Nowitzki

Burkhard Standke

Jaroslaw Monkiewicz

Kerstin Weissenbach

Sven Roth

Franz Nierlich

Wilhelm Droste

Manuel Friedel

Alfred Oberholz

Joachim Schuler

Frank Steding

Lothar Fischer

Martin Rupp

Helmut Kretschmer

Jurgen Jung

Hans-Gerd L Uken

John Kashnitz

Wolfgang Baldauf

Karin Muller

Heinz Bolz

Peter Rennwanz

Werner Duismann

The invention relates to a composition comprising olefinically functionalized siloxane oligomers derived from olefinically functionalized alkoxysilanes and optionally alkoxysilanes functionalized with saturated hydrocarbons, and also, optionally, a tetraalkoxysilane, which have not more than one olefinic radical on the silicon atom, and whose chloride content is reduced, and also to processes for preparing them and to the use thereof.

Low chloride compositions of olefinically functionalised siloxane oligomers based on alkoxysilanes

The invention relates to a composition containing olefinically functionalized siloxane oligomers which are derived from olefinically functionalized alkoxy silanes and optionally alkoxy silanes functionalized with saturated hydrocarbons and optionally a tetraalkoxysilane, at most comprising an olefinic group on the silicon atom having a reduced chloride content and the VOC content being lower with respect to the hydrolysable alkoxy-groups. The invention also relates to methods for the production thereof and to the use thereof.

Mixtures, particularly low in volatile organic compounds (VOC), of olefinically functionalised siloxane oligomers based O alkoxy silanes

The present invention relates to a catalyst for the selective hydrogenation of an unsaturated compound, based on a noble metal and/or a noble-metal oxide on an aluminum oxide support, and to a process for the preparation of the catalyst. The present invention further relates to a process for the selective hydrogenation of unsaturated compounds.

Catalyst, process for the preparation thereof and process for the

Carrying out a chemical reaction in a reaction distillation column on an inorganic catalyst in the form of a column packing material which is maintained above the column bottom permits the use of high reaction temperatures and the easy removal or replacement of inactivated catalyst.

Method of carrying out chemical reactions in reaction distillation

A nickel/aluminum oxide catalyst having a nickel content from 10 to 60% by weight, based on the total catalyst, in which the nickel is in the form of crystallites having an average diameter ranging from 15 nm to 50 nm.

Nickel/aluminum oxide catalyst, preparation thereof, use thereof and

The present invention relates to a process for the production of a catalyst for the removal of nitrogen oxides from waste gases, in which the end of the catalyst on the gas-inlet side is coated with a compound selected from the group consisting of biphosphates, condensed phosphates, silicates, borates and mixtures thereof, and is subjected to thermal aftertreatment, where the end of the green element on the gas-inlet side is immersed into an aqueous preparation comprising biphosphates and/or condensed phosphates and/or silicates and/or borates, and the green element is subsequently calcined at temperatures of from 300.degree. to 700.degree. C.

Catalyst for removing nitrogen oxides from a waste gas, and process for

A process is provided for applying a thermostable identification mark to an absorbent material such as piece goods or ceramics. A cobalt salt solution containing hydrogen peroxide is applied in the form of a mark to the surface of an absorbent material, followed by a thermal aftertreatment above 400.degree. C. for stabilization of the identifying mark.

Identification of absorbent material with a thermostable colorant and

Growing community of inventors

Marl, Germany

Bernd Nowitzki