Patents Assigned to Wacker-Chemie
  • Siloxane mixtures
    Patent number: 9862869
    Abstract: The invention provides mixtures, liquid at 25° C.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: January 9, 2018
    Assignee: Wacker Chemie AG
    Inventors: Florian Hoffmann, Juergen Stohrer
  • Cross-linkable compositions based on organosilicon compounds and thus produced molded bodies
    Patent number: 9862642
    Abstract: Artificial stone which exhibits minimal visual change when exposed to weathering, UV light, and heat, is prepared by shaping and curing a crosslinkable composition based on crosslinkable organopolysiloxanes as a binder, at least 85% by weight of a filler component, the filler component containing at least 20% by weight of coarse grain mineral filler having grain sizes of 0.2 mm to 10 mm.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: January 9, 2018
    Assignee: WACKER CHEMIE AG
    Inventors: Detlev Ostendorf, Uwe Scheim, Daniel Schildbach
  • METHOD FOR POLYMERISING ETHYLENICALLY UNSATURATED MONOMERS
    Publication number: 20180002467
    Abstract: The invention relates to a method for polymerising ethylenically unsaturated monomers by free-radical initiated emulsion polymerisation in an aqueous medium in a polymerisation reactor, wherein the inside walls and optionally also the fittings in the reactor are coated by applying a deposit-inhibiting product before the reactor is filled, characterised in that the surfaces that are to be coated with deposit-inhibiting product are treated with an acid solution.
    Type: Application
    Filed: February 11, 2016
    Publication date: January 4, 2018
    Applicant: WACKER CHEMIE AG
    Inventor: Muhammad BABAR
  • CROSS-LINKABLE COATING COMPOUNDS BASED ON ORGANYL-OXYSILANE-TERMINATED POLYMERS
    Publication number: 20170369740
    Abstract: Floor coatings with improved properties are prepared from alkoxysilyl-functional polymers, silicone resins with a high alkoxy group content, and a filler component, at least a portion of which contains large particle sizes.
    Type: Application
    Filed: January 19, 2016
    Publication date: December 28, 2017
    Applicant: Wacker Chemie AG
    Inventors: Volker STANJEK, Dominik AUER, Andreas BAUER, Kurt REITMAJER, Lars ZANDER
  • NITRILES AND AMINES AS ELECTROLYTE COMPONENTS FOR LITHIUM-ION BATTERIES
    Publication number: 20170373349
    Abstract: An electrolyte containing vinylene carbonate, an amine, a nitrile, and a conductive lithium salt is useful in lithium ion batteries to improve discharge retention after multiple charge/discharge cycles.
    Type: Application
    Filed: September 8, 2016
    Publication date: December 28, 2017
    Applicant: Wacker Chemie AG
    Inventors: Daniel BRAEUNLING, Frank DEUBEL, Margit KRATZL
  • Process for ruthenium-catalysed transvinylation of carboxylic acids
    Patent number: 9850193
    Abstract: A process for selective transvinylation of a reactant carboxylic acid with a reactant vinyl ester to give a product vinyl ester and the corresponding acid of the reactant vinyl ester in the presence of one or more ruthenium catalysts, wherein a) the reactant vinyl ester, the reactant carboxylic acid and the ruthenium catalyst are supplied to a reactor, and b) the transvinylation reaction is conducted, wherein c) the transvinylation reaction is conducted at a conversion of more than 50%, d) on completion of the transvinylation reaction, the reactant vinyl ester and the corresponding acid are separated from the reaction mixture by distillation, e) the product vinyl ester is separated by distillation from the bottom product of the distillation, and f) the remaining reaction mixture is recycled into the reactor.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: December 26, 2017
    Assignee: WACKER CHEMIE AG
    Inventors: Peter Gigler, Jürgen Stohrer
  • Use of modified water-soluble polymers as crosslinking auxiliary agents
    Patent number: 9850327
    Abstract: Modified water soluble polymer crosslinking agents can be used by themselves or in combination with conventional crosslinking agents, other crosslinkable base polymers, and/or hardeners. The dried composition is redispersible in water prior to crosslinking, but is stable to water after crosslinking, also offering improved stain resistance.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: December 26, 2017
    Assignee: WACKER CHEMIE AG
    Inventor: Abdulmajid Hashemzadeh
  • CYCLIC PHOSPHONAMIDES AS AN ELECTROLYTE COMPONENT FOR LITHIUM-ION BATTERIES
    Publication number: 20170365879
    Abstract: An electrolyte suitable for use in lithium ion batteries contains 100 parts by weight of aprotic solvent, 1 to 50 parts by weight of lithium-containing conducting salt, 4 to 50 parts by weight of vinylene carbonate, and cyclic phosphonamide of the general formula 1 in which R1, R2, R3 are each hydrocarbyl which is unsubstituted or substituted by fluoro, chloro or silyl groups and which has 1-20 carbon atoms, where two or three of the radicals R1, R2, R3 may be joined to one another, and n has a value of 0, 1, 2, 3, 4 or 5. The electrolyte is used in a lithium-ion battery which comprises a cathode, an anode, a separator, and the electrolyte.
    Type: Application
    Filed: September 8, 2016
    Publication date: December 21, 2017
    Applicant: Wacker Chemie AG
    Inventors: Daniel BRAEUNLING, Frank DEUBEL
  • Process for producing polycrystalline silicon
    Patent number: 9845247
    Abstract: Deposition on a sightglass in a reactor for CVD deposition of silicon is reduced by conducting a first purge gas stream substantially parallel to the reactor end surface of the sightglass, and conducting a second purge gas stream within the sightglass tube at an angle from the sightglass surface toward the interior of the reactor.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: December 19, 2017
    Assignee: WACKER CHEMIE AG
    Inventors: Goeran Klose, Heinz Kraus, Franz Salzeder
  • PLATINUM COMPLEXES AND THEIR USE IN COMPOUNDS THAT CAN BE CROSS-LINKED BY A HYDROSILYLATION REACTION
    Publication number: 20170349717
    Abstract: Cyclopentadienyl platinum complexes bearing ethylenic unsaturation are efficient photocatalysts for hydrosilylation of compounds containing aliphatic carbon-carbon multiple bonds, while exhibiting extended dark time, and are particularly useful in addition-curable organopolysiloxane compositions.
    Type: Application
    Filed: August 24, 2015
    Publication date: December 7, 2017
    Applicant: Wacker Chemie AG
    Inventors: Wolfgang ZICHE, Andreas KOELLNBERGER
  • METHOD FOR PRODUCING ORGANOPOLYSILOXANES
    Publication number: 20170349709
    Abstract: Highly condensed silicon resins are obtained by a three step continuous procedure without the use of organic solvent, by preliminarily forming a partial alkoxylate by reacting a chlorosilane with alcohol containing no or a minimal amount of water, feeding the partial alkoxylate to a reaction column to form a silicone resin of low degree of condensation, and further condensing the silicone resin intermediate thus formed to produce a silicone resin product.
    Type: Application
    Filed: July 21, 2016
    Publication date: December 7, 2017
    Applicant: Wacker Chemie AG
    Inventors: Frank SANDMEYER, Georg LOESSEL, Marko PRASSE
  • REACTOR FOR THE DEPOSITION OF POLYCRYSTALLINE SILICON
    Publication number: 20170349443
    Abstract: Reflective silver coatings on the inside surfaces of a Siemens reactor for polycrystalline silicon production are improved by a cold forming after-treatment of the silver coating.
    Type: Application
    Filed: December 18, 2015
    Publication date: December 7, 2017
    Applicant: Wacker Chemie AG
    Inventors: Tobias WEISS, Heinz KRAUS
  • POLYMER MASTER BATCH CONTAINING LINEAR, ULTRA HIGH MOLECULAR POLYDIMETHYLSILOXANES DEVOID OF VINYL GROUPS
    Publication number: 20170342221
    Abstract: Polymer masterbatches useful for producing polymer compositions with improved abrasion resistance include a polypropylene homopolymer and a polydimethylsiloxane having a molecular weight >200,000 g/mol and being free of vinyl groups.
    Type: Application
    Filed: November 30, 2015
    Publication date: November 30, 2017
    Applicant: Wacker Chemie AG
    Inventors: Michael GECK, Oliver FUHRMANN, Klaus POHMER
  • CROSSLINKABLE ORGANOPOLYSILOXANE COMPOSITIONS
    Publication number: 20170342216
    Abstract: Moisture curable RTV-1 compositions with rapid curing and a modulus which is adjustable over a wide range include organopolysiloxanes having on-chain and side-chain silicon-bonded ?-aminoalkyl groups and at least on average two silicon-bonded alkoxy groups, trialkoxyorganylsilanes and/or tetraalkoxysilanes, and organopolysiloxanes bearing alkoxysilyl groups.
    Type: Application
    Filed: November 5, 2015
    Publication date: November 30, 2017
    Applicant: Wacker Chemie AG
    Inventor: Torsten SIXT
  • OIL-IN-WATER SILICONE EMULSION COMPOSITION FOR DIE CASTING RELEASE AGENT
    Publication number: 20170341136
    Abstract: Organopolysiloxane emulsions having improved release properties when employed in die casting, contain an organopolysiloxane with long chain alkyl groups and/or aryl groups, and a partially hydrophobicized silica as an emulsifying agent.
    Type: Application
    Filed: December 18, 2015
    Publication date: November 30, 2017
    Applicant: Wacker Chemie AG
    Inventors: Airi SENGOKU, Shinichi ARAKI
  • PROCESSES FOR PRODUCING SILICON
    Publication number: 20170334729
    Abstract: Silicon is produced by magnesiothermic reduction of silicon dioxide, wherein to achieve magnesiothermic reduction a reactant mixture is employed which contains silicon dioxide (SiO2) and magnesium (Mg) and, as moderators, magnesium oxide (MgO) and silicon (Si), and optionally further moderators.
    Type: Application
    Filed: October 24, 2016
    Publication date: November 23, 2017
    Applicant: Wacker Chemie AG
    Inventors: Peter GIGLER, Juergen STOHRER
  • Method for separating high-boiling carboxylic acid vinyl ester/carboxylic acid mixtures
    Patent number: 9822059
    Abstract: The invention relates to a method for separating a mixture containing at least one carboxylic acid vinyl ester of general formula R?—C(O)O—CH?CH2 and at least one carboxylic acid of general formula R?—COOH, wherein R? in either case can be an aliphatic group having 12 to 22 C atoms or a cycloaliphatic group having 12 to 22 C atoms, or an aromatic group having 12 to 22 C atoms, and R? can be identical or different, characterized in that the carboxylic acid is converted to its anhydride R?—C(O)—O—C(O)—R? and the carboxylic acid vinyl ester is subsequently separated.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: November 21, 2017
    Assignee: Wacker Chemie AG
    Inventors: Peter Gigler, Jürgen Stohrer
  • T7 expression system, method for its production and use thereof for producing recombinant proteins
    Patent number: 9822348
    Abstract: The invention relates to an expression system comprising a prokaryotic cell which contains a polynucleotide construct that encodes a T7 RNA polymerase under the control of a T7 promoter and under the control of an inducible promoter. The invention also relates to an expression vector which contains a gene that encodes a protein to be expressed under the control of a T7 promoter, characterized in that said expression vector comprises a plasmid stabilization system.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: November 21, 2017
    Assignee: Wacker Chemie AG
    Inventors: Andreas Anton, Monique Janowski-Egler, Markus Liebscher
  • Silicone composition with protection against pollutants
    Patent number: 9818663
    Abstract: Addition-curable encapsulants for electrical and electronic components contain amorphous glass particles doped with silver, and are efficient scavengers of sulfur and sulfur compounds.
    Type: Grant
    Filed: April 4, 2013
    Date of Patent: November 14, 2017
    Assignee: WACKER CHEMIE AG
    Inventor: Philipp Mueller
  • Process for preparing dispersion powders
    Patent number: 9815977
    Abstract: The invention provides a process for preparing dispersion powders by spray drying of aqueous polymer dispersions of polymers of one or more ethylenically unsaturated monomers selected from the group encompassing vinyl esters, methacrylic esters, acrylic esters, olefins, dienes, vinylaromatics, and vinyl halides with a drying gas in a nozzle atomization dryer, characterized in that the aqueous polymer dispersion (feed), before being atomized, is preheated under pressure to a temperature of 100° C. to 200° C. and is atomized at this temperature, the pressure being set such that the aqueous phase of the polymer dispersion does not boil at the temperature selected.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: November 14, 2017
    Assignee: WACKER CHEMIE AG
    Inventor: Stefan Killat