Covestro Deutschland Ag

Bayer Materialscience Ag

Adhesys Medical Gmbh

Bayer Aktiengesellschaft

Bayer Intellectual Property Gmbh

Covestro LLC

Bayer Technology Services Gmbh

Qiagen Gmbh

Sunyx Surface Nanotechnologies Gmbh

Covestro Intellectual Property Gmbh & Co. Kg

Medical Adhesive Revolution Gmbh

Burkhard Köhler

Christoph Gürtler

Thomas Ernst Müller

Walter Leitner

Sebastian Dörr

Heike Heckroth

Muhammad Afzal Subhani

Rick L Adkins

Aurel Wolf

Jack R Reese

Joachim Simon

Werner Hoheisel

Karsten Reihs

Urs Rauwald

Ingmar Dorn

Werner Obrecht

Pieter Ooms

Christian Wamprecht

Peter Haas

Johann Rechner

Jörg Hofmann

Joachim Probst

Martin Melchiors

Michael Mager

Bernhard Jansen

Wieland Hovestadt

Michael Sonntag

Harald Kraus

Johan Kijlstra

Joachim Wagner

Meike Niesten

Winfried Jeske

Markus Haase

Matthias Wintermantel

Gerhard Ruttmann

Kerstin Bohmann

Verena Jakoby

Dieter Rühle

Jan Heijl

Georg Wiessmeier

Stefan Grasser

Friedhelm Risse

Daniel-Gordon Duff

Henning Vogt

Jan Schönberger

Yvonne Dienes

Claudine Rangheard

Werner Jenninger

Christiane Meyer

Marc Leimenstoll

Igor Busygin

Thorsten Heidelberg

Christos Karafilidis

Julien Barruet

Anthony Kermagoret

Angelina Prokofieva

Franco Doro

Susmit Basu

Matthias Voetz

Ewa Gebauer

Daniela Cozzula

Yevgen Berezhanskyy

David Rivillo

Nicolai Kolb

Alexandra Große Böwing

Stefan Haubold

Thomas Ernst MÜLLER

Alexandra Grosse BÖWING

Stephan c/o Hanosolutions Gmbh Haubold

This invention relates to novel macromers containing dithiocarbonate (or xanthate) groups, novel preformed stabilizers comprising macromers, and novel polymer polyols comprising the novel macromers and/or novel preformed stabilizers. This invention also relates to processes for the preparation of these materials. Other aspects of this invention include foams comprising the novel polymer polyols and a process for preparing foam comprising the novel polymer polyols.

Dithiocarbonate containing polyols as polymer polyol stabilizers

The present invention relates to a method that includes providing a formulation having an isocyanate-functional prepolymer and a curing component comprising an amino-functional aspartic ester of the general formula (I) applying the formulation to a cell tissue; and curing the formulation such that the loss of blood (haemostatic) or tissue fluids is staunched or leaks in cell tissues are sealed.

Medical adhesives for stopping heavy bleeding and sealing leakages

The present invention relates to polyoxazolidinone compounds, a method for the production of polyoxazolidinone compounds, comprising the step of reacting a biscarbamate compound with a bisepoxide compound in the presence of a mono-carbamate, a mono-isocyanate and/or a mono-epoxide compound as chain regulator and a suitable base having a pKvalue of &#x2264;9 as catalyst. The invention further relates to the use of polyoxazolidinone compounds with high thermal stability.

Process for the synthesis of polyoxazolidinone compounds with high stability

The present invention relates to a method for producing polyether carbonate polyols, the polyether carbonate polyols having electron-poor and electron-rich double bonds, said method preferably comprising the steps of (a) providing a suspending agent and/or an H-functional starter compound and a DMC catalyst, 03) adding at least one epoxide and (y) adding carbon dioxide, an epoxide that does not contain an unsaturated group, and at least two unsaturated compounds, the unsaturated compounds in method step (y) being selected from the group comprising unsaturated epoxides and unsaturated cyclic anhydrides, and one of the unsaturated compounds having an electron-rich double bond and one of the unsaturated compounds having an electron-poor double bond. The invention also relates to the crosslinking of polyether carbonate polyols, the polyether carbonate polyols having electronpoor and electron-rich double bonds, and to the crosslinked polyether carbonates obtainable therefrom.

Radical crosslinking of polyether carbonate polyols that have electron-poor and electron-rich double bonds

The present invention relates to a process for preparing aromatic polycarbonates, comprising the step of reacting bisphenols with dithiocarbonates or selenium analogs thereof in the presence of a catalyst. It further relates to the use of dithiocarbonates or selenium analogs thereof as transesterifying reagents for the preparation of polycarbonates.

Process for preparing polycarbonates by transesterifying dithiocarbonates or selenium analogues thereof with bisphenols

The present invention relates to a method for producing higher functional polyether carbonate polyols, said method preferably comprising the steps of ([alpha]) providing a DMC catalyst and; ([alpha][alpha]) a suspending agent that does contain any H-functional groups and/or ([alpha][beta]) an H-functional starter compound ([beta]) adding carbon dioxide and at least one alkylene oxide ([gamma]) adding carbon dioxide and at least two alkylene oxides, wherein these alkylene oxides can be the same as or different from the alkylene oxide or alkylene oxides added in step ([beta]), and ([delta]) adding carbon dioxide and at least one alkylene oxide, wherein this alkylene oxide or these alkylene oxides can be the same as or different from the alkylene oxides added in steps ([beta]) and ([gamma]), at least one of the alkylene oxides in step ([gamma]) having an epoxy functionality of &#x3e;=2 and, in addition, in the case that no H-functional starter compound is provided in ([alpha]), step ([delta]) includes the addition of an H-functional starter compound.

Higher functional polyether carbonate polyols obtained using branching molecules

The present invention relates to a process for preparing mercapto-crosslinked polyethercarbonate and sees polyethercarbonate polyols containing double bonds being reacted with polyfunctional mercaptans and/or sulfur with the involvement of initiator compounds.

Cross-linking of polyether carbonate polyols containing double-bonds, by adding mercapto-compounds

The present invention relates to a process for the preparation of polyether carbonate polyols by catalytic copolymerization of carbon dioxide (CO) with alkylene oxides in the presence of one or more H-functional starter substances with the aid of double metal cyanide (DMC) catalysts and in the presence of additives A) chosen from the group consisting of sterically non-hindered phenols, catechols, pyrocatechols, thiazines, phenothiazines, thiazoles, benzothiazoles, oxazines, phenoxazines, 2,2,6,6-tetramethylpiperidine 1-oxyl and nitrostyrenes and optionally in the presence of metal salts B).

Process for the preparation of polyether carbonate polyols

The present invention relates to a process for the activation of double metal cyanide (DMC) catalysts with heterocumulenes for the preparation of polyether carbonate polyols by catalytic copolymerization of carbon dioxide (CO) with alkylene oxides in the presence of one or more H-functional starter substances, and to a process for the preparation of polyether carbonate polyols from one or more H-functional starter substances, one or more alkylene oxides and carbon dioxide in the presence of a double metal cyanide catalyst, characterized in that

Method for activating double metal cyanide catalysts for the production of polyether carbonate polyols

The invention relates to a process for the preparation of polycarbonate polyols, characterized in that cyclic carbonates are polymerized in the presence of DMC catalysts and chain-transfer agents consisting of polyether carbonate polyols.

Method for producing polycarbonate polyols by the immortal polymerization of cyclic carbonates

The invention relates to multi-amine functional oligomers and multi-oxime functional oligomers in addition to a method for producing the same by means of the co-polymerization of carbonyl carriers such as olefins or dienes, reaction with hydroxylamine and a subsequent selective catalytic hydrogenation.

Multi-amine functional oligomers and method for producing the same by the reduction of corresponding oximes

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Zierenberg, Germany

Burkhard Köhler