Evonik Degussa Gmbh

Evonik Goldschmidt Corporation

Evonik Operations Gmbh

Goldschmidt Gmbh

The Procter Gamble Company

Evonik Glodschmidt Gmbh

Michael Ferenz

Wilfried Knott

Frank Schubert

Sascha Herrwerth

Christian Hartung

Matthias Lobert

Frauke Henning

Michael Fiedel

Oliver Thum

Roland Hubel

Stefan Silber

Horst Dudzik

Juergen Meyer

Tobias Maurer

Matthias Naumann

Christian Eilbracht

Bernard William Kluesener

Hans Henning Wenk

Matthias Pascaly

Carsten Schiller

Michael Klostermann

Annegret Terheiden

Rajan Keshav Panandiker

Emmanouil Spyrou

Jürgen Meyer

Katrin Roland

Philippe Favresse

Klaus-Dieter Klein

Joachim Venzmer

Volker Zellmer

Dirk Kuppert

Helmut Ritter

Martin Glos

Kathrin Lehmann

Ewald Gerhard Sieverding

Dagmar Windbiel

Peter Schwab

Dirk Hoppe

Berend-Jan De Gans

Martin Schilling

Verena Dahl

Alexander Schulz

Patrick Winter

Goetz Baumgarten

Dirk Hinzmann

Markus Ungerank

Sarah Schmitz

Tammo Boinowitz

Kathrin Daniela Brandt

Rüdiger Landers

Burghard Grüning

Anke Lewin

Burghard Gruening

Thorsten Schierle

Bastian Matthias Brugger

Ralph Scheuermann

Holger Leidreiter

Hardi Doehler

Frank Koenig

Andrea Lohse

Hardi Döhler

Christian Mund

Kai-Oliver Feldmann

Ingrid Eissmann

Daniela Hermann

Marion Ansorge-Schumacher

Olga Fiedel

Annegret Lilienthal

Philipp Tomuschat

Melanie Roessing

Thomas Klotzbach

Stefan Busch

Lars Wiemann

Wolfgang Hojak

Frank Unger

Sadik Amajjahe

Jan Caßens

Thomas Günther

Joerg Peggau

Sarah Otto

Rene Haensel

Andre Raukamp

Michael Gippert

Thomas Neumann

Marina Lazar

André Brötzmann

Susann Wiechers

Jörg Simpelkamp

Rainer Ziegler

Hannelore Foetsch

Isabelle Denise Wessely

Ulrike Mahring

Winfried Hamann

David Lindsay

René Hänsel

Sabine Kömmelt

Evelyn Albrecht

Ute Linke

Marvin Jansen

Erika Messinger

A process for preparing polyether-siloxane block copolymers by hydrosilylation of alpha,omega-modified hydrosiloxanes with alpha,omega-modified di(meth)allyl polyethers in the presence of a hydrosilylation catalyst, wherein the reaction is performed in a solvent mixture comprising aromatic solvents, polyethers and alkoxylated alcohol, is described.

Polyether-siloxane block copolymers for the production of polyurethane foams

Compositions for producing a rigid polyurethane foam are described, comprising at least one isocyanate component, a polyol component, optionally a catalyst which catalyzes the formation of a urethane or isocyanurate bond, wherein the composition has hydrocarbons having 3, 4 or 5 carbon atoms, hydrofluorocarbons, hydrofluoroolefins (HFO), hydrohaloolefins, oxygen-containing blowing agents and/or chlorohydrocarbons as blowing agent, and also comprises acrylate and/or methacrylate copolymers as foam stabilizers.

Production of polyurethane foam

What are described are shaped hot-cure flexible PU foam articles, preferably mattresses and/or cushions, wherein the hot-cure flexible polyurethane foam has been obtained by reaction of at least one polyol component and at least one isocyanate component in the presence of at least one compound of formula (1a) and at least one compound of formula (1b) and at least one blowing agent and at least one catalyst.

Compression set

A defoamer composition based on organofunctionally modified polysiloxanes contains one or more laterally polyether-modified polysiloxanes as component A and at least one terminally polyether-modified polysiloxane as component B.

Defoamer composition based on organofunctionally modified polysiloxanes

Crosslinked polyether siloxane block copolymers are obtained by reacting an alpha-omega hydrogen siloxane with at least one higher-order hydrogen siloxane and at least one polyether in the presence of a hydrosilylation catalyst. These are described, and also use thereof as additives for producing polyurethane foams, particularly mechanically foamed polyurethane foams.

Crosslinked polyether-siloxane block copolymers and their use for producing polyurethane foams

Process for producing PU foams by reacting at least one polyol component with at least one isocyanate component in the presence of one or more catalysts that catalyse the isocyanate-polyol and/or isocyanate-water reactions and/or isocyanate trimerization, and optionally one or more chemical or physical blowing agents, with use of SiOC-bonded polyether siloxanes having branching in the siloxane moiety, prepared from branched siloxanes bearing acetoxy groups, wherein a sufficient amount of the SiOC-bonded polyether siloxane having branching in the siloxane moiety is added that the proportion by mass of this polyether siloxane (e) based on the finished PU foam is from 0.0001% to 10% by weight.

Production of PU foams

Branched SiOC-linked polyethersiloxanes have the following formula (I) where Ris an alkyl radical having 1 to 4 carbon atoms or a phenyl radical, but preferably 90% of the radicals Rare methyl radicals; b has a value of from 1 to 10; a has a value of from 1 to 200, preferably 10 to 100, a value of from 3 to 70 when b is &#x2265;1 and &#x2264;4, or a value of from 3 to 30 when b is &#x3e;4; and Rdenotes identical or different polyether radicals, but at least one radical Ris a structural element radical of formula (II): where p=at least 2, preferably p=2-6, particularly preferably p=3.

SiOC-based polyethersiloxanes

The use of zinc ketoiminate complexes in the production of polyurethanes is described, wherein the zinc ketoiminate complexes are obtainable by reacting a zinc compound with certain ketimines.

Zinc ketoiminate complexes as catalysts for the production of polyurethanes

The invention provides compositions comprising at least one rhamnolipid and at least one siloxane, characterized in that the weight ratio of rhamnolipid to siloxane is from 5,000,000:1 to 100:1, preferably from 500,000:1 to 1000:1, particularly preferably from 25,000:1 to 2500:1. In another embodiment, the invention provides compositions include rhamnolipid in an amount of from 0.5% by weight to 70% by weight, preferably from 2% by weight to 60% by weight, particularly preferably from 3% by weight to 50% by weight, where the percentages by weight refer to the total composition.

Skin cleansing composition containing rhamnolipid and siloxane

The present invention relates to a process for producing hydrosilylatable, eugenol-based polyethers, to the conversion thereof into polyether siloxanes and also to the products that may be produced by this process and to the use of said products as surfactants.

Acrylate-terminated urethane polybutadienes from low-monomer 1:1 monoadducts from reactive olefinic compounds and diisocyanates and hydroxy-terminated polybutadienes for liquid optically clear adhesives (LOCAs)

The present invention relates to a composition suitable for production of rigid polyurethane or polyisocyanurate foams, said composition comprising at least one isocyanate component, at least one polyol component, at least one foam stabilizer, at least one urethane and/or isocyanurate catalyst, optionally water and/or blowing agent, and optionally at least one flame retardant and/or further additives, which comprises at least two different varieties 1 and 2 of polyether siloxanes as foam stabilizers, and to the use of this composition for production of foamed polyurethane or polyisocyanurate materials, preferably rigid foams.

Composition suitable for production of rigid polyurethane or polyisocyanurate foams

The invention relates to polyether-modified siloxanes which are both superspreading and readily biodegradable. In particular, the invention is directed to a composition including polyether-modified siloxanes of formula (I)MDD'&#x2003;&#x2003;Formula (I)

Biodegradable super-spreading, organomodified trisiloxane

The present invention relates to coating compositions comprising A) alkoxy-functional arylpolysiloxanes and/or alkoxy-functional aryl-alkylpolysiloxanes, B) at least one crosslinking catalyst and optionally C) at least one alkoxysilane and D) optionally further auxiliaries and additives, where the fraction of the alkoxy groups is at least 10 wt %, based on the sum of components A) and C).

Coating compositions

The use of bonded siloxane block polymers of the general average formula (I) MMDDTQGas additive in the production of PUR foam using at least one polyol component and at least one isocyanate component, wherein the polyol component used has an average hydroxyl number, determined to DIN 53240-1:2012-07, of &#x3e;56 to &#x3c;450 mg KOH/g, preferably 57-300 mg KOH/g, and wherein the PUR foam is produced at an isocyanate index of 65 to 108, is described.

Production of viscoelastic polyurethane systems using block polymers having bonded siloxane blocks as cell openers

Process for the preparation of eugenol polyethers that can be hydrosilylated and eugenol polyethersiloxanes and use thereof

Growing community of inventors

Essen, Germany

Michael Ferenz