Henkel Ag & Company, Kgaa

Other

Forschungszentrum Julich Gmbh

Forschungszentrum Juelich Gmbh

Ciba-geigy Corporation

Degussa Aktiengesellschaft

Cognis IP Management Gmbh

Kernforschungsanlage Julich

Universitaet Rostock

Solvent Innovation Gmbh

Udo Kragl

Johann Klein

Esteban Mejia

Christian Wandrey

Andrea Gutacker

Karlheinz Drauz

Jan-Erik Damke

Therese Hemery

Oreste Ghisalba

Christina Despotopoulou

Ralf Dunekake

David Briers

Jens Baumgard

Henrik Lund

Eckhard Paetzold

Marion Marquardt

Marleen Winterberg

Lars Zander

Maria-Regina Kula

Andreas Bommarius

Guido Giffels

Ingo Fleute-Schlachter

Klaus Helpenstein

Helene Boudet

Christiane Kunze

Peter Wasserscheid

Peter Kempers

Matthias Kittelmann

Annika Dietrich

Carsten Bolm

Daniel Gygax

Ulrich Schörken

Sandra Mack

Kurt Hamacher

Adrian Duracu

Rok Brisar

Peter Miethe

Andreas Liese

Kerstin Unger

Nadine Derrien

Heinz Hubert Coenen

Marta Woznicka

Dengxu Wang

Sandra Heldt

Nicole Kaftzik

Steve Hillbrandt

Sonja Fliege

Thomas Tierling

Juliane Beliczey

Marcel Felder

Maria R Kula

Uwe Neidermeyer

Kyriakos Makrylaleas

Ingeborg M Stuertz

Teresa Klein

Wolfgang Kruse

Dirk Hollmann

Mai Ngoc Nguyen

Theresia Koehler

Lea Grefe

Martha Hoehne

Martha HÖHNE

Swarup Ghosh

The invention relates to method for preparing a high-purity regenerated polysaccharide by precipitating a dissolved polysaccharide due to a reaction of the solvent with an organic carbonate, which is much more health-friendly, environmentally friendly and safer than conventional methods. Materials from the produced regenerated polysaccharide are also provided.

Preparation of regenerated polysaccharides

The invention relates to a process for preparing polyorganosiloxanes by (i) condensation polymerization of at least one linear organosiloxane which has at least one hydroxy group or hydrolysable group bound to a silicon atom, (ii) ring-opening polymerization of at least one cyclosiloxane, or (iii) ring-opening polymerization and condensation polymerization of a mixture of at least one linear organosiloxane which has at least one hydroxy group or hydrolysable group bound to a silicon atom and at least one cyclosiloxane with a basic initiator and a hydroxy group-containing compound in the presence of a polar aprotic solvent, wherein the obtained polyorganosiloxanes are not miscible in the polar aprotic solvent at room temperature.

Process for the preparation of polyorganosiloxanes

The present invention is directed to supported catalyst having utility in the polymerization and co-polymerization of epoxide monomers, said supported catalyst having the general Formula (I):[DMCC]*Supp  (I)

Highly active double metal cyanide compounds

A method for producing a hydroxyl-functionalized polysiloxane having secondary or tertiary hydroxyl groups, said method comprising the steps of:  

Process for the preparation of hydroxyl-functionalized polysiloxanes

The present invention discloses silylated polyurethanes obtainable by reacting at least one polyols, at least one polyisocyanates, at least one amide-functionalized silanes of the general formula (I) as described herein and their preparation methods, curable compositions comprising the silylated polyurethanes and their use as adhesive, sealant, spray foam and/or coating.

Silane coupling agents

The invention relates to a curable composition comprising: a) at least one polymer having at least one silicon-containing group of formula &#x2014;Si(R)(Y)as defined herein; b) at least one titanium complex of formula TiL(OR)wherein each Ris independently selected from a Calkyl or aryl which may optionally contain one or more heteroatoms, preferably selected from silicon, sulfur, nitrogen or oxygen atoms, wherein preferably Ris selected from n-butyl or isopropyl, and L is a deprotonated, tridentate ligand, and c) optionally at least one compound which has a hydrolyzable silicon-containing group and a weight average molecular weight in the range of 100 to 1000 g/mol, preparations containing these compositions and use thereof.

Titanium complexes as vulcanization catalysts

The invention relates to silane compounds having the general formula (I): SiR(R)(I), as defined herein, to a method for preparing the silane compounds and use thereof as crosslinker or as adhesion promoter and to a curable composition comprising a reaction product of the at least one silane compound, at least one polyorganosiloxane, and at least one catalyst, and use thereof.

Silanes and curable compositions comprising said silanes

The invention relates to a curable composition comprising: a) at least one polymer having at least one silicon-containing group of formula &#x2014;Si(R)(Y)as defined herein; b) at least one titanium compound of formula Ti(L)(NX)or Ti(R)(L), where each X is independently a hydrogen atom, a hydrocarbon radical containing 1 to 20 C atoms, which may optionally contain one or more heteroatoms, in particular nitrogen atoms, or a silicon-containing organic group, or two X together with the nitrogen atom to which they are bound form a heterocyclic ring; each L is independently a hydrolyzable oxygen- or nitrogen-containing organic group, in particular an alkoxy group; Ris a hydrocarbon radical containing 1 to 20 C atoms, which may optionally contain one or more heteroatoms, in particular silicon atoms; and m is 1, 2, 3, or 4 and and n is 0, 1, 2, or 3, where m+n=4; and c) optionally at least one compound which has a hydrolyzable silicon-containing group and a molecular weight in the range of 100 to 1000 g/mol, preparations containing these compositions and use thereof.

This disclosure relates to a zinc complex formula (I), as defined herein, to the use of this zinc complex as a catalyst, in particular for the catalysis of a condensation reaction of organosilicon compounds. This disclosure also relates to preparations containing said compounds and to the use thereof.

Organic zinc complexes as catalysts for condensation reactions

The present invention relates to a method for preparing functionalized cyclosiloxanes of Formula I, wherein R, R, R, m, n1 and n2 are as defined herein, comprising reacting (i) a cyclosiloxane of Formula II with (ii) a substituted acetylene of Formula III in the presence of a hydrosilylation catalyst. The invention further relates to methods for preparing biscyclosiloxanes by reacting the vinyl cyclosiloxanes obtained according to the described methods and the (bis)cyclosiloxanes obtainable according to the described methods.

Method for the preparation of functionalized cyclosiloxanes

The invention relates to a catalyst for catalysing the polymerisation of epoxides, and which is to be improved such that it allows a more efficient reaction to be carried out. This is achieved by providing a catalyst obtainable by mixing a) at least one double metal cyanide compound, b) at least one organic complexing agent, and c) at least one primary alcohol with 6 to 24 C atoms. In addition, the invention relates to a method for the polymerisation of epoxides, and to the use of the claimed catalyst for the polymerisation of epoxides and the copolymerisation of epoxides with carbon dioxide.

Catalyst for epoxide polymerisation and for the copolymerisation of epoxide with carbon dioxide

Described are alkoxylated glycerol acetals according to Formulas (Ia) and (Ib) wherein Rrepresents a linear or branched, saturated or unsaturated and optionally substituted hydrocarbyl residue comprising 6 to 22 carbon atoms and 0 or 1 to 3 double bonds, a benzyl or furfuryl radical, Ris selected from hydrogen, an alkyl, alkenyl or hydroxyalkyl group having 6 to 22 carbon atoms or an acyl group having 6 to 22 carbon atoms and 0 or 1 to 3 double bonds, AO represents an ethylene oxide, a propylene oxide, a butylene oxide unit, or their mixtures, and n is an integer of about 1 to about 100.

Alkoxylated glycerol acetals and their derivatives

The invention relates to the implementation of enzyme-catalysed reactions in the presence of ionic liquids.

Enzyme catalysis in the presence of ionic liquids

Furanosides or pyranosides can be reacted with pyruvate and converted into sialic acids in good yields by an enzymatic synthesis, using a suitable aldolase, where the concentration of aldolase, per 50 mM of pyruvate, is 1 to 2,500 U*/ml. For example, 3-fluoroneuraminic acid and other 3,3-didesoxy-3-fluorononulopyranosonic acid derivatives can be prepared in this manner. The F-atom in the resulting sialic acid (which can be F or F and F) provides a label which makes possible studies of mammalian physiology and diagnosis of mammalian diseases.

Method for making fluorinated sugars having a side chain and use thereof

The invention involves a procedure for the catalytic enantioselective reduction of ketones to chiral alcohols. Heretofore, this reaction was carried out batch-wise. Because, in this procedure, one utilizes a catalyst increased in size with polymer, it is possible to carry out the reaction in a quasi-continuous manner in a membrane reactor. In contrast to the state of the art, one thus dramatically increases the operative life of the catalyst.

Process for the catalytic enantioselective reduction of ketones

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Kritzmow, Germany

Udo Kragl