Evonik Degussa Gmbh

Evonik Goldschmidt Corporation

Evonik Operations Gmbh

Basf Se Corporation

Evonik Industries Ag

Carsten Schiller

Martin Glos

Christian Eilbracht

Wilfried Knott

Michael Ferenz

Horst Dudzik

Frauke Henning

Joachim Venzmer

Matthias Naumann

Frank Schubert

Oliver Thum

Georg Markowz

Roland Hubel

Matthias Lobert

Michael Klostermann

Annegret Terheiden

Mark Elbing

Markus Schuette

Sarah Schmitz

Johann Klassen

Thorsten Schultz

Rüdiger Landers

Werner Wiegmann

Christian Mund

Sarah Otto

Ruediger Landers

Frank Fechner

Sabine Kömmelt

Michael Wagner

Stephan Hofmann

Eva Emmrich

Arndt Brückner

Manfred Klincke

Robert Tauchen

Wiley Rowe

Jörg Diendorf

Markus SCHÜTTE

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

Disclosed herein is a method for producing polyurethane or polyisocyanurate foams. The method involves reacting a composition (Z1) with at least one polyisocyanate, and occurs in the presence of at least one nucleating agent and a blowing agent, in which the nucleating agent and the blowing agent are mixed to obtain a composition (Z2) that is added to the composition (Z1) before it is reacted with the at least one polyisocyanate. The composition (Z1) contains (i) 100 parts by mass of a composition (ZP) including at least one polyol and at least one catalyst that catalyzes formation of a urethane, urea or isocyanuarate bond, and (ii) from 0.05 to 10 parts by mass of a surfactant TD having an HLB value below 6 and no silicon atom.

Composition that is suitable for producing polyurethane foams and that contains at least one nucleating agent

The present invention relates to compositions which are suitable for producing polyurethane foams and contain at least one polyol component, at least one blowing agent, a catalyst which catalyzes the formation of a urethane or isocyanurate bond, a silicon-containing foam stabilizer and optionally further additives and optionally an isocyanate component, characterized in that they contain at least one unsaturated halogenated hydrocarbon as blowing agent and additionally at least one surfactant TD which does not have a silicon atom and has an HLB of less than 10, where the proportion of the sum of the surfactants TD in the composition is from 0.05 to 20 parts by mass per 100 parts by mass of polyol components, a process for producing polyurethane and polyisocyanurate foams, in particular rigid foams, starting out from these polyol compositions, the use of the foams, in particular as insulation material, and also the insulation materials themselves.

Composition which is suitable for producing polyurethane foams and contains at least one HFO blowing agent

Processes for producing polyether siloxanes are provided in which unsaturated polyethers are reacted with one or more SiH-functional siloxanes in the presence of Pt(0) compounds and tertiary amines Also, provided is the use of Pt(0) compounds and tertiary amines for producing polyether siloxanes and to the use of the polyether siloxanes thus obtained.

Production of polyether siloxanes

Composite materials are provided that include an open-cell polymer foam matrix including one or more polymers and, embedded into the polymer foam matrix, granules or shapes which have an open porosity.

Composite materials comprising an open-cell polymer matrix and granules embedded therein

A polyether siloxane of formula (I)R&#x2014;Si(CH)&#x2014;O&#x2014;[-Si(CH)&#x2014;O&#x2014;]&#x2014;[-Si(CH)R&#x2014;O&#x2014;]&#x2014;Si(CH)&#x2014;R&#x2003;&#x2003;(I)where

Silicone stabilizers for rigid polyurethane or polyisocyanurate foams

Compositions suitable for producing polyurethane foams which include at least a polyol component, a catalyst catalyzing the formation of a urethane or isocyanurate bond, optionally a blowing agent, optionally further additives and optionally an isocyanate component, which are characterized in that they additionally include an admixture including at least one specific amide and at least one siloxane compound, wherein the mass ratio of siloxane compounds to compounds of formula (I) is above 1:10.

Composition containing specific amides and organomodified siloxanes, suitable for producing polyurethane foams

The object of the invention is a method for producing polyurethane and/or polyisocyanurate insulating foam based on foaming reaction mixtures containing polyisocyanates, compounds having reactive hydrogen atoms, propellants, stabilizers, nucleation agents, and optionally further additives, which is characterized in that porous solids, in particular silicates having a zeolite structure, are used as the nucleation agents.

Method for producing polyurethane insulating foams

Prepolymers having more than one alkoxysilyl function per chain end reactive towards epoxide groups as a constituent of curable compositions, and their use for producing adhesive-bonding and coating compositions, which may also be foamable, and also polymeric materials produced therefrom.

Polymeric materials and also adhesive and coating compositions composed thereof and based on multi-alkoxysilyl-functional prepolymers

A method for producing polyurethane foams by reacting at least one organic isocyanate moiety, at least one polyol, a blowing agent consisting of halogen-containing (fluorine-containing) olefins and at least a siloxane of Formula I b, c and d are defined herein, as well as compositions made by said method are described.

Method for producing polyurethane foam

The present invention relates to compositions containing polyether-siloxane copolymers which are based on branched SiH-functional siloxanes, where at least one of the polyether-siloxane copolymers has a radical &#x2014;OR8 where R8=hydrogen or an alkyl radical having from 1 to 10 carbon atoms which is bound to a silicon atom, a process for producing polyurethane foam in which these compositions are used as foam stabilizers, polyurethane foams containing these compositions and the use of these polyurethane foams.

Compositions containing polyether-polysiloxane copolymers

Preparation and use of polyurethane foams with the use of foam stabilizers of the general formula (I) 

Invention relates to the use of foam stabilizers, produced on the basis of sustainable raw materials, for prroducing polyurethane foams

The invention relates to a process for the preparation of branched siloxanes containing R&#x2014;SiOunits, where R=organic radical, wherein straight-chain polysiloxanes containing silane hydrogen in the polymer chain are reacted in the presence of ammonium or metal carboxylates as a catalyst in the absence of hydroxy-functional organic compounds, and to siloxanes thus prepared and the use thereof in the preparation of polyurethane foams and antifoam formulations.

Process for the preparation of branched polyorganosiloxanes

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Muelheim an der Ruhr, Germany

Carsten Schiller