Patents Assigned to Wacker Chemie AG
  • SILANE TERMINATED POLYETHER EMULSIONS FOR COATING APPLICATIONS
    Publication number: 20220396664
    Abstract: Silane-terminated polyether emulsions (STP-E emulsions) comprising a cyclohexylamino alkoxysilane catalyst may be formulated as storage stable 1K compositions. The STP-E emulsions are especially useful in coating applications.
    Type: Application
    Filed: December 11, 2019
    Publication date: December 15, 2022
    Applicant: Wacker Chemie AG
    Inventors: Andrew Pearson, Amanda Andrews, Toby Vick
  • METHOD FOR PRODUCING ORGANYLOXYSILANE-TERMINATED POLYMERS
    Publication number: 20220396665
    Abstract: A process for preparing silane-terminated polymers (SP) of the formula (I), Y—[O—C(?O)—NH—(CR12)b—SiRa(OR2)3-a]x??(I), includes in a 1st process step at least one polymer (OHP) of the formula (II), Y—[OH]x??(II), being reacted with at least one isocyanate-functional silane (IS) of the formula (III), O?C?N—(CR12)b—SiRa(OR2)3-a??(III), with the proviso that the isocyanate-functional silanes (IS) are used in an amount such that there are at least 1.05 isocyanate groups in the silanes (IS) to each hydroxyl group in the compounds (OHP). Subsequently, in a 2nd process step, the unreacted isocyanate groups of the silanes (IS) are reacted, in the reaction mixture obtained in the 1st process step, with at least one alcohol (A) of the formula (IV), R3OH??(IV) Subsequently, in a 3rd process step, the reaction mixture obtained in the 2nd process step is passed through an evaporation unit (VD).
    Type: Application
    Filed: December 13, 2019
    Publication date: December 15, 2022
    Applicant: Wacker Chemie AG
    Inventors: Volker STANJEK, Lars ZANDER
  • CROSSLINKABLE COMPOSITIONS BASED ON ORGANOSILICON COMPOUNDS
    Publication number: 20220389168
    Abstract: A crosslinkable composition is based on organosilicon compounds that include (A) organopolysiloxanes of the formula (I), the formula (I) being (R7O)3-aSiR3aO(SiR42O)nSiR3a(OR7)3-a, and (B) siloxanes of the formula (II), the formular (II) being with the proviso that the sum of all x in formula (II) is greater than 0.
    Type: Application
    Filed: August 9, 2019
    Publication date: December 8, 2022
    Applicant: Wacker Chemie AG
    Inventors: Uwe Scheim, Marko Prasse, Peter Schöley
  • METHOD FOR DETERMINING TRACE METALS IN SILICON
    Publication number: 20220381761
    Abstract: A method for determining an amount of metallic impurities within silicon. The method includes the steps of (a) providing a rodlike silicon sample and a rodlike seed crystal in a zone melting apparatus, (b) zone melting to form a single silicon crystal having a conical end region with a droplike melt forming at the end of the single silicon crystal in a separation step, (c) cooling of the droplike melt to form a solidified silicon drop, (d) partial or complete dissolution of the silicon drop in an acid, and analyzing the solution obtained in step (d) by a trace analysis technique. Wherein the separation step further includes a remelting step for the silicon sample to reduce its diameter, forming a droplike melting zone, and separation of the seed crystal and the silicon sample by moving the seed crystal and the silicon sample apart from one another.
    Type: Application
    Filed: July 21, 2020
    Publication date: December 1, 2022
    Applicant: Wacker Chemie AG
    Inventors: Waltraud ASCHL, Theresa KAUTNICK, Manuel STADLMAYR, Peter STEINKRESS
  • FORMULATION OF CNT-CONTAINING SILOXANES CONTAINING SILICIC ACID
    Publication number: 20220380551
    Abstract: A low-viscosity, electrically conductive, CNT-containing siloxane composition along with processes for producing the same, uses for the same and articles made therefrom. The siloxane composition includes a) 0.1-5 wt % CNTs; b) 70-97.9 wt % of at least one siloxane, which is selected from compounds of the general formula (I); c) 1-20 wt % of at least one hydrophobic silicic acid, which is surface-silylated by at least one organosilicon compound selected from organosilanes of the formula (IV) and organosilazanes of the formula (V); and d) 0-5 wt % of other fillers. Where the proportions relate to the total weight of the composition and the total of all components a) to d) equals 100 wt %.
    Type: Application
    Filed: October 30, 2019
    Publication date: December 1, 2022
    Applicant: Wacker Chemie AG
    Inventors: Torsten GOTTSCHALK-GAUDIG, Claudia KIRSCHNER
  • Method for determining a surface temperature
    Patent number: 11515184
    Abstract: Siemens process rod growth is controlled by measuring rod diameter by a measuring system A and measuring rod temperature by a measuring system B, the two measuring systems located at different positions outside the reactor.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: November 29, 2022
    Assignee: WACKER CHEMIE AG
    Inventors: Olaf Seifarth, Stefan Sommerauer, Markus Wenzeis
  • BITUMINOUS COATING COMPOSITIONS
    Publication number: 20220372328
    Abstract: Aqueous coating compositions and methods for making and used for the same. The method includes providing 75 to 97 weight percent of bitumen (solid) and 3 to 20 weight percent of vinyl acetate-ethylene copolymers, wherein each is based on the dry weight of the bituminous coating compositions. Mixing the bitumen, the one or more vinyl acetate-ethylene copolymers and optionally one or more additives. Where the bitumen and/or the vinyl acetate-ethylene copolymers are applied in the form of aqueous dispersions. Where the one or more vinyl acetate-ethylene copolymers are based on ?50 weight percent, based on the total weight of the vinyl acetate-ethylene copolymers, of vinyl acetate and ?90 weight percent, based on the total weight of the vinyl acetate-ethylene copolymers, of vinyl acetate and ethylene.
    Type: Application
    Filed: October 28, 2019
    Publication date: November 24, 2022
    Applicant: Wacker Chemie AG
    Inventors: Kunjankumar SHAH, Zulfikar KUTTIYA
  • CROSSLINKABLE REACTIVE SILICONE ORGANIC COPOLYMERS DISPERSIONS
    Publication number: 20220372195
    Abstract: An aqueous dispersion along with methods for producing and uses for the same. Where the aqueous dispersion includes crosslinkable reactive silicone organic copolymers of ethylenically unsaturated monomers and of ethylenically functionalized silicone polymers and is obtainable by means of radically initiated miniemulsion polymerization in an aqueous medium.
    Type: Application
    Filed: December 18, 2019
    Publication date: November 24, 2022
    Applicant: Wacker Chemie AG
    Inventors: Amitabha MITRA, Sarah BURKE, Daniel CALIMENTE, Daniel HWANG, Frank SANDMEYER
  • PROCESS FOR CONVERTING ORGANOSILANES
    Publication number: 20220363698
    Abstract: A method for converting organosilanes by reacting at least one silane (1) of the general formula RaSiCl4-a??(I) with at least one further silane (2) of the general formula RbSiCl4-b??(II) wherein silane (2) is identical or different from silane (1), optionally with additional use of silanes (3) which contain Si-bonded hydrogen and have the formula RdHeSiCl4-d-e??(III) in the presence of aluminum salts, preferably aluminum halides, as catalysts and in the presence of cocatalysts, to obtain at least one silane (4) which differs from silanes (1) and (2) and has the general formula RcSiCl4-c??(IV).
    Type: Application
    Filed: November 14, 2019
    Publication date: November 17, 2022
    Applicant: Wacker Chemie AG
    Inventors: Frank Betschinger, Andreas Bockholt, Manfred Böck, Gerald Fleischmann, Klaus Käppler
  • OIL-IN-WATER EMULSION AND USE THEREOF
    Publication number: 20220362133
    Abstract: An oil-in-water emulsion which includes one or more amino polyorganosiloxanes (A1), one or more silicone resins (A2), a surfactant composition (B) and water. The oil-in-water emulsion forms a film having a higher degree of crosslinking and an improved strength. Additionally, the oil-in-water emulsion is usable within hair care products to make hairstyles hold and offer a smooth, non-sticky hand feel. Furthermore, the oil-in-water emulsion also has good storage stability.
    Type: Application
    Filed: October 25, 2019
    Publication date: November 17, 2022
    Applicant: Wacker Chemie AG
    Inventors: Xinyu LIANG, Yuwen LIANG
  • Method for producing highly dispersed silicon dioxide
    Patent number: 11498841
    Abstract: An economic process for producing high quality finely divided silicon dioxide from mixtures comprising economical silicon compounds without operational disturbances is characterized by using as an Si source mixture of at least two silicon compounds, at least one being carbon-containing and at least one being carbon-free, supplying a fuel gas and an oxygen-containing source, the molar C/Si ratio of this mixture being between 10/BET and 35/BET, and the molar H/Cl ratio of this mixture being between 0.45+(BET/600) and 0.95+(BET/600), with BET being the specific surface area of the pyrogenic silicon dioxide under production, introducing this mixture as the main flow into a reaction space and igniting and reacting it, and isolating the resulting solid.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: November 15, 2022
    Assignee: WACKER CHEMIE AG
    Inventor: Mikhail Sofin
  • METHOD FOR OBTAINING HEXACHLORODISILANE BY REACTING AT LEAST ONE PARTIALLY HYDROGENATED CHLORODISILANE ON A SOLID UNFUNCTIONALIZED ADSORBER
    Publication number: 20220356064
    Abstract: A process for obtaining hexachlorodisilane and uses for the same. The process includes contacting at least one partially hydrogenated chlorodisilane of general formula HxSi2Cl(6-x) where x is from 1 to 5 in the liquid state with a solid non-functionalized adsorber material that is selected from the group comprising silicates, aluminosilicates, organic polymer and/or combinations thereof. The process also includes optionally separating the hexachlorodisilane and/or optionally separating the adsorber material.
    Type: Application
    Filed: February 20, 2020
    Publication date: November 10, 2022
    Applicant: Wacker Chemie AG
    Inventors: Dr. Jens Felix Knoth, Uwe Pätzold, Monika Straßer
  • AQUEOUS DISPERSION AND POLYMER MODIFIED CEMENT-BASED COATING COMPOSITION THEREOF
    Publication number: 20220348502
    Abstract: An aqueous dispersion and uses therefor. The aqueous dispersion includes a Component (a), Component (b) and Component (c). Where Component (a) is a polymer prepared by the polymerization of monomers comprising a vinyl ester and an ethylene, where Component (b) is an acrylate-based polymer and where Component (c) is water. A film that is formed from the aqueous dispersion has a glass transition temperature of less than or equal to ?7° C. The aqueous dispersion the polymer of the Component (a) has a pot life of longer than or equal to 4 hours after being mixed with cement. Where Component (a) is present in an amount of higher than 35%, based on the total weight of the aqueous dispersion and Component (b) is present in an amount of less than or equal to 20%, based on the total weight of the aqueous dispersion.
    Type: Application
    Filed: June 28, 2019
    Publication date: November 3, 2022
    Applicant: Wacker Chemie AG
    Inventors: Yun (Helen) Li, Lei (Steve) Yang, Yizheng (Josef) Gong, Honggang (Henry) Chen, Hu (Vincent) Yuan
  • METHOD FOR PRODUCING SILICON FRAGMENTS
    Publication number: 20220314228
    Abstract: The present disclosure relates to a method for producing polycrystalline silicon fragments. The process includes (a) providing a polycrystalline silicon rod, (b) working the surface of the silicon rod by means of a hammer or needle hammer to remove at least a portion of a layer of the surface of the polycrystalline silicon rod, and (c) reducing the silicon rod to fragments. Wherein an amount of impact energy expended by the hammer and/or needle hammer is from 1 J to 15 J.
    Type: Application
    Filed: August 29, 2019
    Publication date: October 6, 2022
    Applicant: Wacker Chemie AG
    Inventor: Matthias Vietz
  • PREPARATION OF SILOXANES IN THE PRESENCE OF CATIONIC GERMANIUM(II) COMPOUNDS
    Publication number: 20220315611
    Abstract: A mixture M includes at least one compound A selected from (a1) a compound of the general formula (I): R1R2R3Si—H, and/or (a2) a compound of the general formula (I?): (SiO4/2)a(RxSiO3/2)b(HSiO3/2)b?(Rx2SiO2/2)c(RxHSiO2/2)c?(H2SiO2/2)c?(Rx3SiO1/2)d(HRx2SiO1/2)d?(H2RxSiO1/2)d?(H3SiO1/2)d??, and at least one compound B selected from (b1) a compound of the general formula (II): R4R5R6Si—O—R7, and/or (b2) a compound of the general formula (II?): Rx3Si—O[—SiRx2—O]m—[Si(OR73)Rx—O]n—SiRx3, and at least one compound C selected from the cationic germanium(II) compound of the general formula (III): ([Ge(II)Cp]+)aXa?.
    Type: Application
    Filed: May 10, 2019
    Publication date: October 6, 2022
    Applicant: Wacker Chemie AG
    Inventors: Elke Fritz-Langhals, Richard Weidner
  • Method for grinding silicon-containing solids
    Patent number: 11462734
    Abstract: The invention relates to methods for producing silicon particles by grinding silicon-containing solids, wherein one or more gases are used, which contain reactive gas at a partial pressure of ?0.3 bar, wherein reactive gases are selected from the group comprising oxygen, ozone, inorganic peroxides, carbon monoxide, carbon dioxide, ammonia, nitrogen oxides, hydrogen cyanide, hydrogen sulfide, sulfur dioxide, and volatile organic compounds.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: October 4, 2022
    Assignee: WACKER CHEMIE AG
    Inventors: Eckhard Hanelt, Michael Fricke
  • Silanes comprising oxamido ester groups
    Patent number: 11459346
    Abstract: Oxamidoester-functional alkylalkoxysilanes are prepared in high yield by the reaction of an alkylalkoxysilane with an oxalic diester.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: October 4, 2022
    Assignee: WACKER CHEMIE AG
    Inventor: Oliver Schaefer
  • METHOD FOR PRODUCING CARBON FIBER BUNDLE
    Publication number: 20220290337
    Abstract: The present invention provides a method for producing a carbon fiber bundle, the method including steps (b) to (e) described below: (b) an oil agent application step of applying a silicone oil agent to a precursor fiber bundle to produce an oil-agent-attached precursor fiber bundle; (d) a stabilization step of subjecting the oil-agent-attached precursor fiber bundle to an oxidization treatment to produce an oxidized fiber bundle; and (e) a carbonization step of carbonizing the oxidized fiber bundle, wherein the silicone oil agent has a skin over time at 250° C. of less than 40 minutes.
    Type: Application
    Filed: August 27, 2020
    Publication date: September 15, 2022
    Applicants: TEIJIN LIMITED, WACKER CHEMIE AG
    Inventors: Hiroko YOKOYAMA, Eiji KINOSHITA, Satoshi OHNO, Izuru TAKETA
  • Polysiloxane composition
    Patent number: 11441034
    Abstract: A polysiloxane composition which is curable by condensation, contains at least one hydroxyl-terminated polyorganosiloxane, at least one diacetoxysilane optionally bearing an alkoxy group, at least one multifunctional alkoxysilane, at least one filler, and at least one catalyst.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: September 13, 2022
    Assignee: WACKER CHEMIE AG
    Inventors: Jian Nie, Minlong Xi
  • Method for preparing aminopropylsilanes
    Patent number: 11440926
    Abstract: Aminopropylalkoxysilanes of the formula H2N—CR2R3—CHR1—CH2—SiR4R5(OR6)??I, are synthesized by hydrosilylating silazanes of the formulae and mixtures thereof, in the presence of a catalyst containing rhodium and/or iridium compounds, and then reacted with alcohol to form an aminopropylalkoxysilane.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: September 13, 2022
    Assignee: WACKER CHEMIE AG
    Inventors: Elke Fritz-Langhals, Richard Weidner