Evonik Degussa Gmbh

Evonik Operations Gmbh

Evonik Rohm Gmbh

Stephan Wieber

Matthias Patz

Harald Stueger

Dirk Poppe

Stefan Bernhardt

Günter Schmitt

Stephan Traut

Jutta Hessing

Daniel Neß

Christoph Walkner

Janette Klatt

Michael Coelle

Thomas Hasskerl

Nicole Brausch

Sofia Sirak

Michael Hagemann

Joachim Erz

Can Metehan Turhan

Hartwig Rauleder

Christian Meier

Sven Balk

Ekkehard Mueh

Patrik Stenner

Martin Trocha

Udo Knippenberg

Ulrich Fischer

Odo Wunnicke

Bernhard Stuetzel

Harald Stüger

Reinhard Carius

Ronny Sondjaja

Markus Pridöhl

Thorsten Schwärtzke

Daniel Ness

Roland Wilkens

Andrea Fruth

Christoph Mader

Jasmin Lehmkuhl

Katharina Dauth

Jens Haubrock

Thorsten Schwaertzke

Paul Henrich Woebkenberg

Valeri Leich

Jennifer Schrantz

Jonas Hönig

Verena Breuers

Ekkehard Müh

Michael Cölle

Christofer Philipp Kronschnabl

Senada Schaack

Torsten Bronger

Rebecca Jüstel

Paul Henrich Wöbkenberg

Joerg Zoellner

Michael CÖLLE

Paul Henrich WÖBKENBERG

Markus PRIDÖHL

Michael Gerhard Hagemann

Rebecca Justel

Gunter Schmitt

Willibald Wombacher

Christian Däschlein

Jörg Zöllner

The invention relates to the use of a nanoparticle composition as a heat transfer fluid in battery or other electrical equipment systems. The electrical equipment can be in particular electric batteries, electric motors, electric vehicle transmissions, electric transformers, electric capacitors, fluid-filled transmission lines, fluid-filled power cables, computers and power electronics such as electric power converters.

Use of nanoparticle compositions as heat transfer fluids in battery or other electrical equipment systems

The invention relates to polymeric-inorganic nanoparticle compositions and preparation processes thereof. The invention also relates to an additive and lubricant compositions comprising these polymeric-inorganic nanoparticle compositions, as well as to the use of these polymeric-inorganic nanoparticle compositions in an oil lubricant formulation to improve tribological performance, in particular to improve extreme pressure performance and friction reduction on metal parts.

Polymeric-inorganic nanoparticle compositions, manufacturing process thereof and their use as lubricant additives

The invention relates to polymeric-inorganic nanoparticle compositions and preparation processes thereof. The invention also relates to an additive and lubricant composition comprising these polymeric-inorganic nanoparticle compositions, as well as to the use of these polymeric-inorganic nanoparticle compositions in an oil lubricant formulation to improve tribological performance, in particular to improve anti-friction performance on metal parts.

The present invention relates to the technical field of 3D printing, in particular in the form of the binder jetting process in which particles in a powder bed are adhesive-bonded by means of a printed adhesive to give a three-dimensional object. The particles here can be inorganic materials, e.g. sand or a metal powder, or polymeric particles, such as polymethacrylates or polyamides. To this end, polymethacrylates can by way of example take the form of suspension polymers known as bead polymers. In this context the present invention in particular relates to, as powders for 3D printing, suspension polymers which differ from the prior art in that they comprise a hard phase and an uncrosslinked soft phase.

Bead polymer made of hard phase with domains of a soft phase

The present invention relates to the technical field of 3D printing, especially in the form of the binder jetting method, in which particles in a powder bed are bonded by means of a printed adhesive to form a three-dimensional object. The particles may be inorganic particles, for example sand or a metal powder, or polymeric particulate, for example polymethacrylates or polyamides. For this purpose, polymethacrylates may take the form, for example, of suspension polymers, called bead polymers.

Spray-dried soft-phase emulsion polymer for filling the gussets in bead polymer layers in a binder jetting method

The present invention relates to the technical field of 3D printing, especially in the form of the binder jetting method, in which particulate material in a powder bed is bonded by means of a printed adhesive to form a three-dimensional object. The particulate materials may be inorganic materials, for example sand or a metal powder, or particulate polymeric materials, for example polymethacrylates or polyamides. For this purpose, polymethacrylates may take the form, for example, of suspension polymers, called bead polymers. The present invention relates to the use of porous particles in the binder jetting process, in particular of porous suspension polymers. These powders for 3-D printing differ from the prior art in that the porosity results in a faster and better absorption of the printed binder by the powder particles. A great advantage of this procedure is additionally that a product with less warpage is formed and that the end product has a better surface appearance.

Production and use of porous bead polymers in 3D printing using the binder jetting method

The present invention relates to formulations comprising at least one hydridosilane of the generic formula SiHwith n=7-10 and at least one hydridosilane oligomer, to processes for preparation thereof and to the use thereof.

Formulations comprising hydridosilanes and hydridosilane oligomers, their process of manufacture and their use

The present invention relates to a liquid-phase process for producing structured silicon- and/or germanium-containing coatings by the application to a substrate of at least one coating composition, the partial activation of the resulting coating on the coated substrate, and oxidation of non-activated coating on the substrate, to the coats produced by the process and to their use.

Process for producing structured coatings

The invention relates to a process for preparing higher halosilanes by disproportionation of lower halosilanes. The invention further relates to a process for preparing higher hydridosilanes from the higher halosilanes prepared by disproportionation. The invention further relates to mixtures containing at least one higher halosilane or at least one higher hydridosilane prepared by the process described. Finally, the invention relates to the use of such a mixture containing at least one higher hydridosilane for producing electronic or optoelectronic component layers or for producing silicon-containing layers.

Process for preparing higher halosilanes and hydridosilanes

The present invention provides processes for preparing carbon-containing hydridosilanes, in which an optionally boron- or phosphorus-doped hydridosilane is reacted without catalyst and reducing agent with at least one carbon source selected from linear, branched or cyclic carbosilanes, halogenated hydrocarbons, carbenes, alkyl azides, diazomethane, dimethyl sulphate or alcohols, the carbon-containing hydridosilane oligomers obtainable by the process and the use thereof.

Method for producing hydrosilanes containing carbon

The invention relates to a process for producing p-doped silicon layers, especially those silicon layers which are produced from liquid silane-containing formulations. The invention further relates to a substrate coated with a p-doped silicon layer. The invention additionally relates to the use of particular dopants based on boron compounds for p-doping of a silicon layer.

p-Doped silicon layers

The invention relates to a liquid-phase method for the thermal production of silicon layers on a substrate, wherein at least one higher silicon that can be produced from at least one hydridosilane of the generic formula SiH(with a=3-10) being applied to a substrate and then being thermally converted to a layer that substantially consists of silicon, the thermal conversion of the higher silane proceeding at a temperature of 500-900&#xb0; C. and a conversion time of &#x2266;5 minutes. The invention also relates to silicon layers producible according to said method and to their use.

Method for producing silicon layers

The invention relates to a method for producing hydridosilanes from halosilanes by a) reacting i) at least one halosilane of the generic formula SiX(with n&#x2267;3 and X&#x2550;F, Cl, Br and/or I) with ii) at least one catalyst of the generic formula NRR'R&#x2033;Ywith a=0 or 1, b=0 or 1, and c=0 or 1, and formula (I), wherein aa) R, R' and/or R&#x2033; are &#x2014;C-Calkyl, &#x2014;C-Caryl, &#x2014;C-Caralkyl, &#x2014;C-Caminoalkyl, &#x2014;C-Caminoaryl, &#x2014;C-Caminoaralkyl, and/or two or three groups R, R&#x2032; and R&#x2033; (if c=0) together form a cyclic or bicyclic, heteroaliphatic or heteroaromatic system including N, with the proviso that at least one group R, R&#x2032; or R&#x2033; is unequal &#x2014;CHand/or wherein bb) R and R&#x2032; and/or R&#x2033;' (if c=1) are &#x2014;C-Calkylene, &#x2014;C-Carylene, &#x2014;C-Caralkylene, &#x2014;C-Cheteroalkylene, &#x2014;C-Cheteroarylene, &#x2014;C-Cheteroaralkylene and/or &#x2014;N&#x2550;, or cc) (if a=b=c=0) R&#x2550;&#x2261;C-R&#x2032;&#x2033; (with R&#x2032;&#x2033;&#x2550;&#x2014;C-Calkyl, &#x2014;C-Caryl and/or &#x2014;C-Caralkyl), while forming a mixture comprising at least one halosilane of the generic formula SiX(with m&#x3e;n and X&#x2550;F, Cl, Br and/or I) and SiX(with X&#x2550;F, Cl, Br and/or I), and b) hydrogenating the at least one halosilane of the generic formula SiHwhile forming a hydridosilane of the generic formula SiH. The invention also relates to the hydridosilanes producible according to said method and to their use.

Method for producing hydridosilanes

The present invention relates to a process for preparing hydridosilanes from halosilanes, in which a) i) at least one halosilane of the generic formula SiX(where n&#x2267;3 and X=F, Cl, Br and/or I) and ii) at least one catalyst are converted to form a mixture comprising at least one halosilane of the generic formula SiX(where m&#x3e;n and X=F, Cl, Br and/or I) and SiX(where X=F, Cl, Br and/or I), and b) the at least one halosilane of the generic formula SiXis hydrogenated to form a hydridosilane of the generic formula SiH, the hydridosilane of the generic formula SiHis separated from partially halogenated hydridosilanes of the general formula SiHX(where 1&#x3c;y&#x3c;2m+1), and the separated partially halogenated hydridosilanes of the general formula SiHX(where 1&#x3c;y&#x3c;2m+1) are hydrogenated again.

Process for preparing hydridosilanes

The present invention relates to a method for oligomerizing hydridosilanes, wherein a composition comprising substantially at least one non-cyclic hydridosilane having a maximum of 20 silicon atoms as the hydridosilane is thermally converted at temperatures below 235&#xb0; C. in the absence of a catalyst, the oligomers that can be produced according to the method, and the use thereof.

Method for oligomerizing hydridosilanes, the oligomers that can be produced by means of the method, and the use thereof

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Karlsruhe, Germany

Stephan Wieber