Evonik Degussa Gmbh

Evonik Operations Gmbh

Evonik Goldschmidt Corporation

Roland Hubel

Annegret Terheiden

Michael Ferenz

Sarah Schmitz

Wilfried Knott

Frank Schubert

Martin Glos

Horst Dudzik

Michael Fiedel

Thomas Günther

Frauke Henning

Georg Markowz

Dagmar Windbiel

Christian Eilbracht

Matthias Lobert

Dietmar Wewers

Bernd Weyershausen

Rüdiger Landers

Olga Fiedel

Manfred Recksik

Daniela Hermann

Ruediger Landers

Isabelle Denise Wessely

Kerstin Hell

Florian Zeller-Schuldes

Marco Wolf

Markus Rudek

Helmut Hahnel

Thomas Guenther

Michael Krebs

Jens Sassenhagen

Maike Funk

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 and/or isocyanate trimerization reactions, and optionally one or more chemical or physical blowing agents, with use of SiOC-linked, linear polydialkylsiloxane-polyoxyalkylene block copolymers having repeat (AB) units, obtainable through the reaction of polyether diols with equilibrated α,ω-diacetoxypolydialkylsiloxanes, wherein a sufficient amount of the SiOC-linked, linear polydialkylsiloxane-polyoxyalkylene block copolymers having repeat (AB) units is added such that the proportion by mass of said component based on the finished PU foam is from 0.0001% to 10% by weight, preferably 0.01% to 6% by weight, especially 0.05% to 5% by weight.

Production of PU 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.

The present invention provides for the use of nitrogen compounds of formula (I) and/or of corresponding quaternized and/or protonated compounds for production of polyurethanes, compositions containing these compounds and polyurethane systems, especially polyurethane foams, which have been obtained using the compounds.

Nitrogen-containing compounds suitable for use in the production of polyurethanes

The present invention relates to the use of nitrogenous compounds of formula (I) and/or corresponding quaternized and/or protonated compounds for production of polyurethanes, to compositions comprising said compounds and also to polyurethane systems, in particular polyurethane foams, obtained using said compounds.

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

Described are a method of producing polyurethane foam comprising polyolefin-based polyols by using an additive composition comprising at least one ionic surfactant A selected from ionic surfactants of formula AM, where A=anion selected from the group consisting of alkyl sulphates, aryl sulphates, sulphonates, polyether sulphates, polyether sulphonates, alkyl sulphonates, aryl sulphonates, alkyl carboxylates, aryl carboxylates, saccharinates and polyether phosphates, and M=cation, and/or at least one ionic surfactant B selected from a quaternized ammonium compound, and also at least a tertiary amine compound C having a molar mass of at least 150 g/mol, and/or an oxazasilinane D, and also polyurethane foams thus obtained and their use.

Production of polyurethane foams comprising polyolefin-based polyols

The present invention relates to polysiloxane polyether copolymers which comprise at least one (polyether) moiety which comprises at least one unit &#x2014;O&#x2014;C(O)&#x2014;O&#x2014;, to a process for the production of the polysiloxane polyether copolymers, and also to the use of the polysiloxane polyether copolymers as stabilizers in the production of polyurethane foams, and also to polyurethane foams and items therefrom which are obtainable through the process.

Polysiloxane polyether copolymers having (polyether)moieties comprising carbonate groups and their use as stabilizers for the production of polyurethane foams

The present invention relates to silicone copolymers of the formula (I) which are obtained by reaction of siloxanes having SiH groups with specific compounds having one or more groups reactive toward SiH groups, especially groups having C&#x2014;C multiple bonds, and optionally at least one OH group, compositions comprising these silicone copolymers, a process for producing a polyurethane foam in which an appropriate silicone copolymer or a corresponding composition is used, polyurethane foam obtainable by the process, and articles comprising or consisting of a corresponding polyurethane foam.

Silicone copolymers with pendant alkyl radicals attached via allyl glycidyl ether and related compounds, and use thereof as stabilizers for production of flexible polyurethane foams

The present invention relates to the use of nitrogenous compounds of formula (I) or of corresponding quaternized, or protonated compounds, for producing polyurethanes, to compositions containing these compounds and also to polyurethane systems obtained using the compounds.

Amines suitable for use in the manufacture of polyurethanes

The present invention relates to an additive composition useful as additive for controlling the foam properties of polyurethane foams which is characterized in that it contains at least one ionic surfactant A selected from those of formula AMwhere A= anion selected from the group comprising alkyl and aryl sulphates, polyether sulphates and sulphonates, sulphonates, alkyl and aryl sulphonates, alkyl and aryl carboxylates, saccharinates and polyether phosphates, and M= cation, and/or at least one anionic surfactant B selected from a quaternized ammonium compound, and at least one tertiary amine compound C, which has a molar mass of at least 150 g/mol, and/or at least one oxazasilinane D, a process for production of polyurethane foam by using this additive composition and also correspondingly produced polyurethane foams and use thereof.

Additive composition useful for controlling the foam properties in the production of flexible polyurethane foams containing polyols based on renewable raw materials

The invention relates to a catalyst system that is suitable for catalyzing the production of polyurethane foams. The catalyst system is characterized in that said system contains a metal salt of an alcohol that is modified with an acid end group.

Production and use of metal salts of alkyl oxide and/or aryl alkyl oxide oligomers and polymers with acid end groups in the production of polyurethane systems

The present invention relates to a process for preparing branched polyethers and/or polyether-like structures, to these branched polyethers themselves, and to their use.

Process for preparing branched polyethercarbonates and use thereof

A catalyst system which is suitable for catalyzing the production of polyurethane systems is provided. The catalyst system contains a metal salt of a carboxylic acid to whose carbonyl carbon a hydrogen atom or a hydrocarbon radical is bound, with the proviso that the carboxylic acid does not have exclusively a single ethyl or n-propyl branch in the 2 position.

Use of metal salts of a carboxylic acid in the production of polyurethane systems

The present invention provides polysiloxane-polyether copolymers comprising at least one polyether moiety, characterized in that there is at least one polyether moiety capped with at least one &#x2014;O&#x2014;C(O)&#x2014;O&#x2014;R&#x2033; unit where R&#x2033; is identical or different alkyl moieties, a process for preparation thereof and use thereof, especially for polyurethane foam production.

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Essen, Germany

Roland Hubel