Henkel Ag & Company, Kgaa

Esteban Mejia

Johann Klein

Andrea Gutacker

Udo Kragl

Jan-Erik Damke

Annika Dietrich

Therese Hemery

Rok Brisar

Christina Despotopoulou

Ralf Dunekake

David Briers

Jens Baumgard

Henrik Lund

Marleen Winterberg

Ligang Zhao

Klaus Helpenstein

Helene Boudet

Adrian Duracu

Christian Kastner

Marion Marquardt

Kerstin Unger

Sebastien Lanau

Dengxu Wang

Steve Hillbrandt

Nayereh Mohebbati

Theresia Koehler

Lea Grefe

Marta Woznicka

Martha Hoehne

Martha HÖHNE

Niklas Schafhausen

Swarup Ghosh

The invention relates to a bi-functionalized polysiloxane brush copolymer comprising at least one hydroxyl-terminated polyalkyleneglycol side chain and at least one onium-functionalized side chain as defined herein, and a method for preparing the bi-functionalized polysiloxane brush copolymer, a curable composition comprising the bi-functionalized polysiloxane brush copolymer and its use.

Bi-functionalized polysiloxane brush copolymers

The present invention relates to an onium-functionalized siloxane having the general Formula (X) or (X-A) as defined herein; a method for preparing the onium-functionalized siloxane; and its use as an antimicrobial agent.

Onium-functionalized siloxanes

The invention relates to a curable composition comprising: a) at least one polymer having at least one silicon-containing group of formula —Si(R)(Y)as defined herein, and b) at least one hydroxyl-functionalized polysiloxane polyalkyleneglycol brush copolymer of the structure [A(-X—B)]as defined herein; and an adhesive, sealant, or coating material comprising said curable composition and use thereof.

Curable composition comprising polysiloxane polyalkyleneglycol brush copolymers

The present invention relates to a procedure in which a functionalized polysiloxane is synthesized in the presence of a platinum catalyst, and halogen-functionalized polysiloxanes obtained according to the procedure. The procedure is defined herein by reacting a) at least one polysiloxane comprising at least one hydrogen atom bonded to a silicon atom; b) at least one heterocyclic compound; and c) at least one halogen-containing compound, wherein the reaction is catalyzed by at least one platinum catalyst. The synthetic pathway is described as a halosilation reaction in which a heterocyclic molecule is ring-opened in the presence of a platinum catalyst and a halogen source, resulting in a formal insertion of the opened heterocycle into the SiH bond. On the final product, the heteroatom of the former heterocycle is bonded to the silicon atom from the former hydrosiloxane moiety while the halogen is bonded to the last carbon atom of the opened chain.

Method for preparing halogen-functionalized polysiloxanes

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

The present invention relates a hydroxyl-functionalized unimodal polysiloxane polyalkyleneglycol brush copolymer of the structure [A(-X—B)], wherein: A represents said polysiloxane backbone; B represents said polyalkyleneglycol side chain; X is a linker group characterized by including the moiety Si—C—C— of which said Si is a part of the polysiloxane backbone A; and s is an integer of from 1 to 100, wherein the polysiloxane backbone A contains less than 500 ppm mol % of SiH moiety based on the total moles of the silicon atom which constitutes the polysiloxane backbone, and said copolymer has a polydispersity index of from 1.3 to 5.0; and a method for producing said hydroxyl-functionalized unimodal polysiloxane polyalkyleneglycol brush copolymer.

Preparation of polysiloxane polyalkyleneglycol brush copolymers

The invention relates to a silylated polyurethane obtainable by reacting: wherein Ris selected from the group consisting of hydrogen and a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; Rand Rare same or different and are, independent from one another, selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; Ris selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; Ris selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; Rand Rare same or different and are, independent from one another, selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; and n is 1, 2 or 3, a method for preparing thereof, a curable composition comprising the thereby obtained silylated polyurethane, and its use.

Silylated polyurethanes and methods for preparing thereof

The invention relates to a curable composition comprising

Paramagnetic titanium mixtures as vulcanization catalysts

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 relates to a method for preparing silicon-containing heterocycles of the general formula (I)  

Method for preparing silicon-containing heterocycles

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 present invention discloses silylated polyurethanes obtainable by reacting at least one polyols, at least one polyisocyanates, at least one silicon-containing heterocycle of the general formula (I): 

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.

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Rostock, Germany

Esteban Mejia