Evonik Degussa Gmbh

Evonik Operations Gmbh

Degussa Aktiengesellschaft

Other

Degussa-huels Aktiengesellschaft

Evonik Rohm Gmbh

Evonik Industries Ag

Emmanouil Spyrou

Holger Loesch

Stephan Kohlstruk

Andreas Wenning

Dirk Hoppe

Manfred Kreczinski

Elke Gollan

Friedrich Georg Schmidt

Werner Grenda

Susanne Kreischer

Andrea Diesveld

Dirk Fuchsmann

Thomas Weihrauch

Britta Kohlstruk

Giselher Franzmann

Klaus Behrendt

Martina Ortelt

Wiebke Stache

Annegret Lilienthal

Sandra Reemers

Sabine Naumann

Rainer Lomoelder

Guenter Schmitt

Eike Langkabel

Tobias Unkelhäußer

Burkhard Standke

Thomas Haas

Michael Ferenz

Guido Stochniol

Frank Schubert

Helmut Ritter

Joachim Venzmer

Jan Christoph Pfeffer

Dirk Kuppert

Gabriele Brenner

Benjamin Willy

Stefan Hilf

Christian Lettmann

Pedro Cavaleiro

Jörg-Joachim Nitz

Heike Heeb

Rene Koschabek

Günter Schmitt

Guido Streukens

Christopher Barner-Kowollik

Marie-Theres Wilkes

Peter Speier

Odo Wunnicke

Thorsten Brand

Andrea Thesing

Christoph Lammers

Andrea Henschke

Iris Brückner

Lars Hellkuhl

Tobias Unkelhaeusser

Andre Raukamp

Ralf Klawikowski

Judith Schoder

Rainer Lomölder

Christoph Nacke

Annette Sandkühler

Marina Grammenos

Jan Pfingsten

Andre Hennig

Nathalie Guimard

Kim Klaus Oehlenschlaeger

Simon Krause

Nicole Fresmann

Marion Ebbing-Ewald

Friedrich Plogmann

Jiawen Zhou

Christiane Zatocil

Peter Altenbuchner

Ralph Aldridge

Evelyn Albrecht

Sebastian De Nardo

Klaus Pinske

Jessika Schüller

Bartholomäus Buchczik

Michael Kube

Stephanie Hösl

Alina Meier

Friedrich-Georg Schmidt

Uwe Korek

Heinz Grosse-Beck

Dennis Menne

Marita Druener

Sibylle Planitz-Penno

Jens Hillen

Stefan Spange

Lothar Hayen

David Bléger

Thomas Pastor

Kim Bühning

Marion Ewald

Melanie Sajitz

André Hennig

Tobias Unkelhäusser

Birte Olland

Michael Spittler

The present invention relates to an additive manufacturing process using a composition comprising the reaction product of a polyester polyol and a compound comprising at least one functional group that can react with a hydroxyl-group of the polyester polyol and at least one further functional group, selected from acrylate-or methacrylate-group, wherein the polyester polyol is based on at least one organic acid comprising at least two carboxyl groups or its anhydride and at least one polyol comprising at least two hydroxy-groups, wherein the reaction product has a glass transition temperature Tg of below 23° C., wherein the composition optionally further comprises a photoinitiator, as a photopolymerizable material in.

Composition comprising polyesters for additive manufacturing

The present invention relates to a process for producing a solid, internally and externally blocked polyurethane curing agent based on a (cyclo)aliphatic polyisocyanate, in which, in the sequence of steps a) to d),

Process for producing solid polyurethane curing agents

The present invention relates to compositions comprising a) 20-80% by weight, based on the total mass of constituents of the composition, of at least one sulfonic acid functionalized with at least one hydroxy and/or amino group and/or at least one sulfonic acid derivative functionalized with at least one hydroxy and/or amino group and b) 80-20% by weight, based on the total mass of constituents of the composition, of at least one compound having at least two OH groups, a method for the preparation thereof and use thereof.

Low-water-content hydrophilization agents and use thereof in aqueous dispersions

The invention relates to a process for preparing a diisocyanate of the formula (A)

Process for preparing diisocyanates based on lysine

The present invention provides compositions consisting of a) at least one metal salt, ammonium salt or phosphonium salt of a strong Br&#xf8;nsted acid and b) at least one primary aliphatic monoamine, processes for preparation thereof and use thereof.

Compositions consisting of Br&#xd8;nsted acids and monoamines

The present invention relates to a low-alkylphenol composition comprising a) at least one epoxy resin, b) at least one amine having at least two secondary amino groups that are both part of an organic ring system, and c) at least one salt of a strong Br&#xf8;nsted acid with a counterion selected from metal ions, metal-containing ions, phosphonium ions and ammonium ions, to processes for production thereof and to the use thereof.

Fast-curing epoxy systems

The present invention relates to a composition comprising a) at least one epoxy resin, b) at least one amine having at least two secondary amino groups which are both part of an organic ring system, and c) at least one salt of a very strong Br&#xf8;nsted acid with a counterion selected from metal ions, metal-containing ions, phosphonium ions and ammonium ions, and to processes for production thereof and use thereof.

The present invention provides a composition comprising a) at least one epoxy resin, b) at least one cyclic amine of the formula (I) in which

The present invention relates to a composition at least comprising A) an adduct of isocyanatosilanes with hydroxy-functional compounds and B) a tin-free catalyst, and also to a coating composition comprising at least the composition and to the use of the coating composition.

Tin-free catalysis of silane-functional polyurethane crosslinkers

The present invention provides a composition comprising a) at least one epoxy resin, b) at least one cyclic amine of the formula (I) in which 

Crosslinkers based on alkoxysilanes and alkoxysilane mixtures containing an isocyanate group can be used as a starting component in the production of coating compositions or as paint binder component, or can be used with adhesive o sealant binders o binder components having g ups reactive toward alkoxysilane groups.

Low-viscosity crosslinkers containing alkoxysilane groups

A process for preparing trimers and/or oligomers of diisocyanates is disclosed along with a composition of trimers and/or oligomers formed from diisocyanates and monomeric diisocyanates obtainable by reaction of I. 5-94.999% by weight of A) at least one diisocyanate having a boiling point of less than 250&#xb0; C. (at standard pressure) and/or

Process for preparing trimers and/or oligomers of diisocyanates

The present invention relates to a process for preparing isocyanate containing alkoxysilane groups, in which, in the sequence of steps A) to D),

Process for preparing isocyanates containing alkoxysilane groups

The invention relates to a process for preparing isocyanate containing alkoxysilane groups, in which, in the sequence of steps A) to D),

Provided is a storage-stable polyurethane prepegs and mouldings produced therefrom composed of polyurethane compositions with liquid resin components, preferably liquid polyols. A prepeg contains(A)a fibrous support and (B)a matrix material containing a reactive polyurethane composition. The polyurethane composition contains a mixture of a liquid resin component(b)having a functional group reactive towards an isocyanate and having a glass transition temperature(Tg)or melting point below 25&#xb0; C., with a hydroxyl number of 50 to 2000 mg KOH/gram, and a curing agent(a)comprising a di- or polyisocyanate internally blocked or blocked with a blocking agent. In addition, the polyurethane composition contains 0.6 to NCO equivalents or 0.3 to 1 uretdione group in (a) for each functional group of (b).

Storage-stable polyurethane prepregs and mouldings produced therefrom composed of a polyurethane composition with liquid resin components

Growing community of inventors

Schermbeck, Germany

Emmanouil Spyrou