Goldschmidt Gmbh

Evonik Degussa Gmbh

Th. Goldschmidt Ag

Evonik Goldschmidt Corporation

Goldschmidt Ag

Goldschmidt Gbmh

Thomas Dietz

Christian Weitemeyer

Peter Lersch

Sascha Oestreich

Peter Hameyer

Klaus Jenni

Ute Schick

Hans Ulrich Süss

Stefan Silber

Christoph Batz-Sohn

Eberhard Esselborn

Burghard Gruning

Petra Allef

Steffen Hasenzahl

Kathrin Lehmann

Ashot K Serobian

Felix Müller

Patrick Winter

Jodi Lynn Russell

Burghard Grüning

Peter Muss

Wolfgang Berkels

Christian Psiorz

Ellen Reuter

Petra Brandt

Angela Rüttgerodt

Ralf Mathiak

Felix Mueller

Erika Messinger

Dirk Wolfgram

Verena Illhardt

Astrid Z&uuml;ndorff

Maria R Nargiello

Bernd Hopf

Ralf Grimmer

Sigrid Wegmann

Jodi Lynn Russel

Process for the delignification and bleaching of pulp, comprising a first bleaching stage with hydrogen peroxide in the presence of a molybdate or tungstate in an acidic aqueous mixture; subsequent to the first bleaching stage, a second bleaching stage with hydrogen peroxide in an alkaline aqueous mixture; and, subsequent to the second bleaching stage, a third bleaching stage with hydrogen peroxide in the presence of a molybdate or tungstate in an acidic aqueous mixture.

Method for delignifying and bleaching pulp

The delignification and bleaching of chemical pulp by a bleaching stage, in which the chemical pulp is reacted first with chlorine dioxide and, after reaction of the chlorine dioxide, is further reacted without intermediate washing with hydrogen peroxide in the presence of a molybdate or tungstate, permits the production of chemical pulp having a whiteness of at least 89.5%, having improved stability to yellowing and reduced oxidative damage.

Process for delignifying and bleaching chemical pulp

Process for recovering molybdate or tungstate from an aqueous solution, in which molybdate or tungstate is bound to a water-insoluble, cationized inorganic carrier material from the aqueous solution at a pH in the range from 2 to 6, the laden carrier material is separated off and the bound molybdate or tungstate is liberated once again into aqueous solution at a pH in the range from 6 to 14. The process is suitable for recovering molybdate or tungstate in the delignification of pulp with hydrogen peroxide in the presence of molybdate or tungstate as catalyst. The recovered molybdate or tungstate can be recycled to the delignification.

Process for recovering molybdate or tungstate from aqueous solutions

A method for processing compositions, compositions obtained by such a process and methods of use are disclosed for forming a detachable and renewable protective coating which is substantially transparent. The inventive process compositions are produced by making a highly concentrated dispersion of hydrophobically modified silica particles in the presence of an optional, yet preferable, disilazane derivative under high shear conditions. These process compositions are intended to be further diluted to final treatment compositions, optionally while adding other functional ingredients.

Processing compositions and method of forming the same

The present invention relates to polyglycerol partial esters of polyhydroxystearic acid and polyfunctional carboxylic acids which are obtainable by esterification of a polyglycerol mixture with polyhydroxystearic acid where N=1 to 10, preferably 2 to 8, in particular 3 to 5 units and dimer fatty acids which have been obtained by catalytic dimerization of unsaturated fatty acids having 12 to 22 C atoms and have an average functionality of 2 to 3, and/or with aliphatic, linear or branched dicarboxylic acids having a chain length of 2 to 16 C atoms and additionally saturated or unsaturated, linear or branched fatty acids having 6 to 22 C atoms, preferably 12 to 18 C atoms, the degree of esterification of the polyglycerol mixture being between 20 and 75%, preferably 40 to 70%.

Emulsifier for highly liquid W/O emulsion based on partly crosslinked polyglycerol esters of polyhydroxystearic acid

Aqueous dispersions comprising microfine metal oxide particles and dispersion auxiliaries, wherein, as dispersion auxiliaries, at least one of the compounds of the general formula (I) in which

High-concentration aqueous dispersions comprising hydrophilic microfine metal oxide particles and dispersion auxiliaries

The invention relates to organopolysiloxane copolymers comprising, on average, at least one polyester group bonded to the siloxane via a spacer and, on average, at least one hydrophilic group bonded to the siloxane via a spacer, of the general formula (I): 

Amphiphilic organopolysiloxanes having polyester groups and use thereof as emulsifiers of dispersing agents

Water-based emulsifier wax gels are provided that include skin-identical sphingolipids The present invention also provides a process for the preparation of such gels, the use of such gels for the preparation of oil-in-water emulsions, and the resulting emulsions that contain the inventive gels.

Water-based emulsifier wax gels including free sphingoid bases and oil in-water emulsion including the same

Amphiphilic organopolysiloxanes having polyester groups and use thereof as emulsifiers or dispersing agents

The present invention relates to the use of a polyether-modified polysiloxanes of a defined structure for the preparation of cosmetic and pharmaceutical oil-in-water emulsions, and to oil-in-water emulsions which comprise said polysiloxanes.

Cosmetic and pharmaceutical oil-in-water emulsions

This invention provides for, inter alia, a cleaning and polishing oil-in-water emulsion which comprises:

Foaming clean and polish emulsions comprising bisquaternary organomodified silicone

Process for the preparation of copolymeric polypeptides, which comprises, in a first stage, reacting glutamic acid and/or derivatives thereof with amines in the absence of solvents and catalysts, under condensation conditions and, in a second stage, adding one or more further amino acids and/or derivatives thereof and/or one or more identical and/or further amines simultaneously or in any desired order, and reacting them with the reaction product of the first stage in the absence of solvents and catalysts.

Process for the preparation of copolymeric hydrophobically modified polyglutamic acid derivatives and their use

Polypeptide-polysiloxane copolymers

Polyacrylates and their use as degassing agents for paints and coatings

Growing community of inventors

Glen Allen, VA, United States of America

Thomas Dietz