Abstract: 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—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.
Abstract: The invention describes amine-amide-functional siloxanes and a process for the preparation thereof by the chemical reaction of SiOH-functional siloxanes with amino-functional silanes in the presence of carboxylic acid anhydrides.
Type:
Grant
Filed:
February 21, 2011
Date of Patent:
June 4, 2013
Assignee:
Evonik Goldschmidt GmbH
Inventors:
Michael Ferenz, Christian Mund, Wilfried Knott, Stefan Silber
Abstract: Polyether alcohols having alkoxysilyl groups, the use thereof and a process for their preparation by means of DMC catalysis, characterized in that one or more epoxy-functional alkoxysilanes are added individually or in a mixture with further epoxide compounds and optionally further comonomers, either in block form or in random distribution, onto a chain starter of the formula (VII) R1—H(VII) having at least one reactive hydroxyl group, where R1 is a saturated or unsaturated, optionally branched radical, or a polyether radical of the alkoxy-, arylalkoxy or alkylarylalkoxy group type, in which the carbon chain may be interrupted by oxygen atoms or corresponds to a polyetheralkoxy radical or to a singularly or multiply fused phenolic group.
Abstract: The invention relates to cells and nucleic acids and also use thereof for producing rhamnolipids, and also methods for producing rhamnolipids.
Abstract: The invention relates to dispersing resins for solids which are obtainable through the partial or complete reaction of the hydroxyl groups of carbonyl-hydrogenated ketone-aldehyde resins with one or more oxiranes and, if desired, subsequent complete or partial esterification with organic and/or inorganic acids.
Type:
Grant
Filed:
March 27, 2008
Date of Patent:
April 16, 2013
Assignee:
Evonik Goldschmidt GmbH
Inventors:
Pedro Cavaleiro, Eberhard Esselborn, Patrick Glöckner, Mario Loebbus, Thomas Veit
Abstract: The invention relates to a process for the preparation of a plant extract from Curcuma plants, characterized by the process steps process step A) liquid extraction of Curcuma rhizomes, process step B) optionally, separation of a curcuminoid-containing solid obtained by precipitation from the extraction mixture obtained in process step A), process step C) removal of solvents present from the extraction mixture obtained in process step A) or B) to obtain a concentrate and process step D) distillation of the concentrate at a pressure of less than 1 bar to give the extract as distillate.
Type:
Grant
Filed:
May 12, 2011
Date of Patent:
April 16, 2013
Assignee:
Evonik Goldschmidt GmbH
Inventors:
Hans Henning Wenk, Mike Farwick, Stefan Bergfried, Ursula Maczkiewitz
Abstract: The invention provides a process for preparing liquid, branched SiH-functional siloxanes by reacting a mixture of one or more low molecular weight SiH-functional siloxanes, one or more low molecular weight SiH-free siloxanes, one or more tetraalkoxysilanes, and optionally one or more trialkoxysilanes with addition of water and in the presence of a Brønsted-acidic ion exchanger, which is characterized in that the reaction is performed in one process step.
Type:
Grant
Filed:
November 3, 2011
Date of Patent:
April 16, 2013
Assignee:
Evonik Goldschmidt GmbH
Inventors:
Frauke Henning, Wilfried Knott, Michael Ferenz
Abstract: The invention relates to novel quaternary ammonium compounds of the esterquat type, to a method for the production thereof, and to the use thereof in formulations.
Abstract: The invention is directed to enzyme preparations which are obtainable by enzyme immobilizates which comprise enzymes or microorganisms containing enzymes immobilized on an inert carrier being provided with a silicone coating obtained by hydrosilylation, to a process for producing such enzyme preparations and to the use of enzyme preparations as an industrial biocatalyst.
Type:
Grant
Filed:
July 7, 2008
Date of Patent:
March 26, 2013
Assignee:
Evonik Goldschmidt GmbH
Inventors:
Oliver Thum, Marion Ansorge-Schumacher, Lars Wiemann, Andreas Buthe
Abstract: The invention relates to polyol partial esters, cosmetic and pharmaceutical formulations containing the polyol partial esters according to the invention, and to the use of the polyol partial esters according to the invention for cosmetic and pharmaceutical purposes.
Type:
Application
Filed:
April 27, 2011
Publication date:
March 21, 2013
Applicant:
EVONIK GOLDSCHMIDT GMBH
Inventors:
Hans Henning Wenk, Juergen Meyer, Oliver Springer, Mike Farwick, Klaus Jenni, Wolfgang Berkels, Frank Unger
Abstract: The invention relates to novel quaternary ammonium compounds of the esterquat type, to a method for the production thereof, and to the use thereof in formulations.
Abstract: Aqueous cold-cure flexible foam stabilizer including the following components: a) from ?0.1 to ?80% by weight of at least one water-insoluble polysiloxane compound having a molecular weight of from ?300 g/mol to ?10 000 g/mol, b) ?2% by weight of water, c) ?0.1% by weight of surfactant, d) from ?0 to 10% by weight of additives selected from the group consisting of thickeners, antifreezes, organic solvents and biocides, e) ?0% by weight of water-soluble siloxane(s), with the proportion by weight of the abovementioned components being selected so that the sum of the proportions by weight of the components is not more than 100% by weight, based on the aqueous cold-cure flexible foam stabilizer formulation.
Abstract: The present invention provides composite materials comprising a polymer matrix comprising one or more polymers and, embedded into the polymer matrix, granules which preferably after embedding have at least one cavity which is closed off relative to the ambient environment and in which there is an underpressure relative to the standard pressure of 1 bar (100 kPa), a method for producing such composite materials, and use as insulating material.
Abstract: A process for the production of compact cellulose-containing moldings by reacting optionally modified organic polyisocyanates with cellulose, in particular lignocellulose, in the presence of mold release agents in an open or closed mold, wherein the mold release agents used are siloxane compounds containing aminopropyl groups and of the general formula (I) in which R1 is CH3 and/or R2, R2 is —(CH2)x—NH—R3 and/or —(O)y—(CH2)x—NH—R3?, R3 and R3?, independently of one another, may be H or —(CH2)x—NH2, R4 is —(CH2)x—NH—(CH2—CH2—O)z—R5 where R5 is an aryl or alkyl radical n is from 50 to 1000, m is from 0 to 20, with the ratio m:n=0 to 0.4, k is from 0 to 20, x is from 1 to 20, y is 0 or 1, z is from 1 to 20, with the proviso that at least one amino-functionalized radical is present.
Type:
Grant
Filed:
April 25, 2006
Date of Patent:
February 19, 2013
Assignee:
Evonik Goldschmidt GmbH
Inventors:
Tammo Boinowitz, Torsten Henning, Helmut Lammerting
Abstract: A process for producing amino-functional polysiloxanes by reacting the components A) identical or different terminally hydroxy-functional, linear or branched polysiloxanes, B) identical or different alkoxysilanes of the formula R1xR23-xSiR3??(I) where R1 is identical or different alkyl radicals having 1 to 4 carbon atoms, R2 is identical or different alkoxy radicals having 1 to 4 carbon atoms, R3 is an organic radical having at least one nitrogen atom, x=0 to 2, and C) water, in the presence of D) one or more phosphorus-containing, Brønsted-acidic compounds, to the correspondingly obtainable polysiloxanes containing nitrogen-containing groups, and to the use thereof are provided.
Type:
Application
Filed:
August 13, 2012
Publication date:
February 14, 2013
Applicant:
EVONIK GOLDSCHMIDT GMBH
Inventors:
Frauke Henning, Andrea Lohse, Ulrike Mahring, Dirk Kuppert
Abstract: Process for the preferential alkoxylation of silicone-polyether copolymers either alone or in compositions thereof containing, for example, excess polyether by use of double metal cyanide catalysts.
Abstract: The invention relates to a composition, in particular a composition suitable for catalysis of the production of polyurethane systems, which is characterized in that the composition comprises at least one tin ricinoleate and/or zinc ricinoleate and at least one further tin carboxylate which is not a tin ricinoleate.
Abstract: A formulation for the production of a polyurethane system, in particular a polyurethane foam, containing or consisting of tin and/or zinc ricinoleate(s), optionally tin carboxylate(s), a mixture containing or consisting of urea, sugar alcohol and polyethylene glycol, optionally organic solvent, one or more organic isocyanates having two or more isocyanate functions, one or more polyols having two or more groups which are reactive towards isocyanate, optionally further catalysts for the isocyanate-polyol and/or isocyanate-water reactions and/or isocyanate trimerization, water, optionally physical blowing agents, optionally flame retardants and optionally further additives, a process for the production of polyurethane systems, these polyurethane systems and their use.
Abstract: The present invention relates to polysiloxane polyether copolymers which comprise at least one (polyether) moiety which comprises at least one unit —O—C(O)—O—, 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.
Type:
Application
Filed:
August 3, 2012
Publication date:
February 7, 2013
Applicant:
EVONIK GOLDSCHMIDT GMBH
Inventors:
Roland Hubel, Sarah Schmitz, Michael Ferenz
Abstract: The present invention relates to the use of polyethersiloxane compounds branched within the polyether moiety and preferably containing carbonate groups, as foam stabilizers in the production of polyurethane foams.
Type:
Application
Filed:
August 3, 2012
Publication date:
February 7, 2013
Applicant:
EVONIK GOLDSCHMIDT GMBH
Inventors:
Matthias Lobert, Sarah Schmitz, Roland Hubel, Martin Glos, Carsten Schiller