Degussa Aktiengesellschaft

Construction Research & Technology Gmbh

Huels Aktiengesellschaft

Evonik Degussa Gmbh

Degussa-huels Aktiengesellschaft

Evonik Operations Gmbh

Other

Evonik Corporation

Sivento Chemie Rheinfelden Gmbh

Basf Se Corporation

Abbvie Deutschland Gmbh and Co Kg

Helmut Mack

Burkhard Standke

Roland Edelmann

Jaroslaw Monkiewicz

Michael Horn

Peter Jenkner

Albert-Johannes Frings

Ralf Laven

Dieter Barfurth

Silke Flakus

Klaus Lorenz

Christian Scholz

Petra Wagner

Barbara Wimmer

Gerhard Albrecht

Martin Winklbauer

Angelika Hartl

Tobias Austermann

Wilfried Hornberger

Andreas Kling

Achim Moeller

Alexander Kraus

Wilfried Lubisch

Boris Breitscheidel

Burkhard Walther

Sylvia Monsheimer

Manfred Bichler

Eckhard Just

Harald Grassl

Gisela Backfisch

Frank Kropfgans

Jochen Mezger

Tilman Taeger

Mario Vierle

Kerstin Weissenbach

Michael J Porsch

Spomenko Ljesic

Manfred Kaussen

Jochen Wagner

Aristidis Ioannidis

Frank Heindl

Hans-Dieter Naegerl

Thomas Schlosser

Volker Nimmrich

Helmut Lohmann

Odo Wunnicke

Dietmar Seemann

Barbara Vogg

Simone Klapdohr

Juergen Delzer

Stephan Ramlow

Armin Beyerbach

Bastian Bielawski

Christopher Studte

Ioana-Elena Mihailescu

Zhifeng Li

Bodo Frings

Maximilian Cornelius

Sabine Giessler

Michael Duetsch

Michael Holthausen

Konrad Wernthaler

Karl Goetzmann

Klaus Sommer

Peter Loewenberg

Wolfgang-Wilhelm Orlia

Susanne Leuchs

Tim Hupfeld

Vanessa Vennemann

Dominik Mispelkamp

Thomas Große-Puppendahl

Zhizhong Cai

Laurent Marc

Marc Laurent

Nicole Poltsch

G&uuml;nter Switalla

Alber-Johannes Frings

Vincente Mans

Just Eckard

Methods can be used for producing three-dimensional objects by powder bed fusion, using inks containing superparamagnetic particles and solvents. Sintering is performed by a magnetic field having a frequency of 50 kHz to 5 GHz.

Selective superparamagnetic sintering and an ink suitable therefor

A modified colloidal silica is produced by mixing an effective amount of an alkyl silicate to form a colloidal silica, followed by treating the colloidal silica with an effective amount of a polyethersilane to form a modified colloidal silica.

Increased particle loading by surface modification with polyethersilane

The invention relates to a composition for use in a Monosil process for the crosslinking of thermoplastic polyolefins which comprises The present invention further relates to a production process, and also to moldings or products obtainable thereby based on thermoplastic polyolefins, where a composition of the invention is reacted together with at least one thermoplastic polyolefin in a Monosil process. The invention further relates to the use of a composition of the invention in the Monosil process for the crosslinking of thermoplastic polyolefins during the production of products molded by means of extrusion, based on thermoplastic polyolefins.

Tin-free catalyst-containing composition for a Monosil process with optimized process properties

The invention relates to a composition and a method for the production of the composition comprising block cocondensates of propylfunctional alkaline siliconates and silicates.

Composition comprising block cocondensates of propylfunctional alkaline siliconates and silicates, and method for the production thereof

The invention provides a process for preparing a thixotropic agent based on a urea derivative, in which the components &#x3b1;) comprising at least one amine and &#x3b2;) comprising at least one isocyanate, are supplied separately to a mixing means and are mixed with one another, the reaction mixture being discharged by spraying or squirting from the mixing means. Further disclosed is the use of the thixotropic agent in a fluid system. The process is especially suitable for preparing adhesives and sealants.

Process for preparing a thixotroping agent and use thereof

The invention relates to a copolymer which can be used as a superplasticizer for hydraulic binders and comprises 30 to 47 mol % of a (meth)allyl alcohol polyether derivative structural unit and 53 to 70 mol % of a maleic acid derivative structural unit.

Copolymer having polyether side chains and dicarboxylic acid derivative components

The invention relates to a method for removing water from a mixture containing at least one compound having at least one group reactive towards isocyanate and containing water, the mixture being applied to the surface of a rotating body A, the mixture flowing over the surface of the rotating body A to an outer region of the surface of the rotating body A and water evaporating from the mixture. In particular, this method is suitable for removing water from alcohols and amines.

Method for removing water from a mixture

The invention relates to a copolymer comprising

Copolymer containing acid building blocks and various types of polyether building blocks

A process for the preparation of a copolymer in semicontinuous operation in a polymerization apparatus, comprising a polymerization reactor connected to a metering device, acid monomer being initially taken in the metering device and polyether macromonomer, acid monomer and water in the polymerization reactor, acid monomer being metered from the metering device into the polymerization reactor, the metering of the acid monomer being effected with the proviso that at least 70 mol % of the acid monomer metered in altogether are metered in the course of 5 to 19 minutes at a metering rate that is constant or varies to a limited extent.

Semi continuously operated method for producing copolymers

The invention relates to a copolymer which is suitable as a superplasticizer for hydraulic binders and comprises 5 to 55 mol % of an isoprenol polyether derivative structural unit, 2 to 90 mol % of an acrylic acid derivative structural unit and 2 to 90 mol % of a hydroxyalkyl acrylate structural unit.

Copolymer comprising polyether side chains and hydroxyalkyl and acid structural units

The invention relates to a process for the preparation of an aqueous solution comprising 30 to 95% by weight of water and 5 to 70% by weight of a copolymer dissolved in the water by free radical solution polymerizations of an isoprenol polyether derivative with an acrylic acid derivative, so that the copolymer has 20 to 45 mol % of an isoprenol polyether derivative structural unit and 55 to 80 mol % of an acrylic acid derivative structural unit. The aqueous solution is suitable as a superplasticizer for hydraulic binders.

Aqueous solution containing copolymers with polyether side chains

Disclosed are silane-modified urea derivatives which can be produced by reacting diisocyanates with aminosilanes, hydroxysilanes, or mercaptosilanes. The inventive silane-modified urea derivatives are suitable especially for use as auxiliary rheological agents, preferably as thixotropic agents for silane-crosslinking systems, particularly for single-component and two-component adhesives and sealants, paint, lacquers, and coating while causing substantially no increase in viscosity, not being subject to discoloring, being reactive, and positively influencing mechanics.

Silane-modified urea derivatives, method for the production thereof, and use thereof as auxiliary rheological agents

The present invention relates to a mixture of an oligomeric, blocked aminosilane (azomethine structure) and a monomeric, blocked, primary amine (azomethine structure). This mixture is suitable in particular as a curing agent, crosslinker and adhesion promoter.

Additive comprising azomethine compounds

The present Invention relates to a mixture comprising catenary, branched and for cyclic siloxanes of the general formula (I) where x is 1, 2 or 3, the substituents R are (i) organofunctional groups selected from &#x2014;CH&#x2014;SH, &#x2014;CH&#x2014;S&#x2014;(CO)&#x2014;R', &#x2014;CH&#x2014;(O&#x2014;CH)&#x2014;OH with a=1 to 10, &#x2014;CH(O&#x2014;CH)&#x2014;OR&#x2032; with b=1 to 40, &#x2014;(CH)&#x2014;NH, &#x2014;(CH)&#x2014;NHR&#x2032;, &#x2014;(CH)&#x2014;NR&#x2032;, &#x2014;(CH)&#x2014;NH(CH)&#x2014;NH, &#x2014;(CH)&#x2014;N[(CH)&#x2014;NH]and &#x2014;(CH)&#x2014;NH(CH)&#x2014;NH(CH)&#x2014;NH, In which R&#x2032; is a linear, branched or cyclic alkyl group having 1 to 18 carbon atoms or an aryl group having 6 to 12 carbon atoms, (ii) hydroxyl, methoxy, ethoxy, 2-methoxyethoxy, isopropoxy, n-propoxy, isobutoxy and for n-butoxy groupe, and (iii) where appropriate, alkyl, alkenyl, isoalkyl, cycloalkyl or fluorcalkyl groups having 1 to 18 carbon atoms or aryl groups having 6 to 12 carbon atoms, whit the proviso that not more than one organofunctional group (i) is attached per silicon atom, the quotient of the molar ratio of the moiety (ii) to silicon le from I to 2, and the degree of oligornerization for compounds of the general formula I is in the range from 2 to 50. The present invention also relates to a specific process for preparing said siloxane mixtures and also to their use. 

Organofunctional siloxane mixtures

The present invention relates to a polymer dispersion wherein the components of a physical mixture comprising (i) at least one unsaturated silane of the general formula (I): [HC&#x2550;CX(Y)]Si(CH)(R)in which X is a hydrogen atom or a methyl group, Y is a divalent group selected from &#x2014;CH&#x2014; and &#x2014;C(O)O&#x2014;(CH)&#x2014;, n is 0 or 1, R is an alkoxy group selected from methoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy, isobutoxy, and 2-methoxyethoxy, and p is 0 or 1, and (ii) at least one organosilane of the general formula (II): RSi(CH)(R)in which Ris a linear, branched or cyclic alkyl group having 1 to 18 carbon atoms or is an aryl group or is a polyether group, Ris an alkoxy group selected from methoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy, isobutoxy and 2-methoxyethoxy, and q is 0 or 1, and/or at least one silicic ester of the general formula (III): Si(R), in which groups Rare identical or different and Ris an alkoxy group selected from methoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy and isobutoxy, are incorporated into the framework of the polymer, a process for preparing such a polymer dispersion, and its use.

Polymer dispersion comprising silicon compounds

Growing community of inventors

Traunstein, Germany

Helmut Mack