Patents Assigned to Wacker Chemie AG
  • Publication number: 20220145093
    Abstract: A powder paint composition. The powder paint composition contains (a) at least one polymer powder which can be re-dispersed in water, (b) pigment and filler, and optionally (c) which may be one or more adjuvants and/or may be one or more hydraulic binders. The at least one polymer powder which can be re-dispersed in water contains a polyvinyl alcohol-stabilized copolymer that is based on (a1) a wt % of a vinyl acetate, (a2) a wt % of ethylene and optionally (a3) and/or (a4) wherein (a3) is vinyl esters of long-chain, optionally branched C3 to C12 carboxylic acids and (a4) is further ethylenically unsaturated comonomers that are co-polymerizable therewith.
    Type: Application
    Filed: February 28, 2019
    Publication date: May 12, 2022
    Applicant: Wacker Chemie AG
    Inventors: Lada Bemert, Klaus Bonin, Udo Kotschi, Hans-Peter Weitzel, Harald Zeh
  • Patent number: 11326132
    Abstract: An antimicrobial nonwoven wet wipe includes i) a fibrous nonwoven substrate bonded with a cross-linkable VAE dispersion stabilized with one or more nonionic colloidal stabilizers and one or more nonionic surfactants, and ii) absorbed in the nonwoven substrate, an aqueous lotion including one or more cationic disinfectants. No anionic surfactants are present in the antimicrobial nonwoven wet wipe. A method of producing the antimicrobial nonwoven wet wipe includes a) applying a first aqueous composition including a crosslinkable VAE dispersion stabilized with one or more nonionic colloidal stabilizers and one or more nonionic surfactants to a nonwoven substrate; b) drying the composition; and c) applying a second aqueous composition to the product of step b). At least one of the first and second aqueous compositions includes one or more cationic disinfectants.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: May 10, 2022
    Assignee: Wacker Chemie AG
    Inventors: John Richard Boylan, Dennis Sagl
  • Patent number: 11325923
    Abstract: Siloxanes are prepared by reacting: a compound A with a compound B or a compound A with a compound C or a compound B with a compound C or a compound C alone, in the presence of a compound D at ?40° C., wherein compound A is a silane or a siloxane having at least one silicon-bonded hydrogen atom, compound B is a silane or a siloxane having at least one silicon-bonded alkoxy moiety, compound C is a silane or a siloxane having at least one silicon-bonded hydrogen atom and at least one silicon-bonded alkoxy moiety, and compound D is a cationic Si(II) compound.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: May 10, 2022
    Assignee: WACKER CHEMIE AG
    Inventors: Elke Fritz-Langhals, Richard Weidner
  • Patent number: 11325862
    Abstract: A hydrophobic, water-redispersible polymer powder composition contains a) a main polymer having a1) more than 60 parts by weight of vinyl laurate monomer units a2) 5 to 30 parts by weight of vinyl acetate monomer units, a3) 5 to 30 parts by weight of ethylene monomer units, a4) 0 to 10 parts by weight of other ancillary monomer units, where the parts by weight total 100 parts by weight, b) 0.5 to 30% by weight of one or more protective colloids, c) 0 to 30% by weight of antiblocking agent, d) 0 to 20% by weight of organosilicon compound, and e) 0 to 20% by weight of fatty acid or derivatives of the fatty acids, where the % s by weight are based on the total weight of the polymer a).
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: May 10, 2022
    Assignee: WACKER CHEMIE AG
    Inventors: Hans-Peter Weitzel, Ulf Dietrich
  • Publication number: 20220135784
    Abstract: A crosslinkable polymer powder compositions redispersible in water includes one or more vinyl ester polymers, one or more compounds bearing epoxide groups and optionally one or more curing agents which crosslink with the compounds bearing epoxide groups. The vinyl ester polymers do not comprise any epoxide-functional monomer units. The crosslinkable polymer powder compositions redispersible in water includes ?51% by weight, based on the total weight of the vinyl ester polymers, of one or more compounds bearing epoxide groups.
    Type: Application
    Filed: February 26, 2019
    Publication date: May 5, 2022
    Applicant: Wacker Chemie AG
    Inventors: Timo Melchin, Ulf Dietrich, Heimo Wölfle
  • Patent number: 11319444
    Abstract: Crosslinkable compositions based on organopolysiloxanes containing organyloxy groups which have improved wetting behavior, and especially improved early stability, contain (A) organopolysiloxanes composed of units RaR1b(OR2)cSiO(4?a?b?c)/2??(I), (B) organosilicon compounds (R4O)dSiR3(4?d)??(II), and/or their partial hydrolysates, and (C) organosilicon compounds containing basic nitrogen (R6O)eSiR5(4?e)??(III), and/or their partial hydrolysates.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: May 3, 2022
    Assignee: WACKER CHEMIE AG
    Inventors: Wolfram Schindler, Michael Kaiser
  • Publication number: 20220119566
    Abstract: Stable preparations of composite particles based on organic polymer and inorganic particles contain, as the organic polymer, an addition polymer containing moieties derived from polymerization of an unsaturated carboxylic acid in addition to vinyl ester, (meth)acrylic ester, olefin, vinyl aromatic, and/or vinyl halide monomers.
    Type: Application
    Filed: November 26, 2018
    Publication date: April 21, 2022
    Applicant: WACKER CHEMIE AG
    Inventor: Abdulmajid HASHEMZADEH
  • Publication number: 20220119593
    Abstract: A multi-component crosslinkable composition includes at least one component (K1) and one component (K2). Component (K1) contains organosilicon compounds (A1) selected from compounds (A1a) of formula (Ia), the formula (Ia) being Y1—[B1—CR22—SiRa(OR1)3-a]x, and compounds (A1b) of formula (Ib), the formula (Ib) being Y2—[B2—(CR42)b—Si(OR3)3]y. Component (K2), based in each case on 100 parts by weight of compounds (A1) in component (K1), includes at least 0.05 parts by weight of water and 10 to 1000 parts by weight of a component (A2) selected from compounds (A2a) of formula (IIa), the formula (IIa) being Y3—B3—CR72—SiR5c(OR6)3-c, and compounds (A2b) of formula (IIb), the formula (IIb) being Y4—[B4—(CR102)e—SiR8d(OR9)3-d]z.
    Type: Application
    Filed: February 14, 2019
    Publication date: April 21, 2022
    Applicant: WACKER CHEMIE AG
    Inventors: Volker STANJEK, Lars ZANDER
  • Publication number: 20220119422
    Abstract: A process for producing methylchlorosilanes of general formula 1, (CH3)nHmSiCl4-n-m, in which n represents values from 1 to 3 and m represents values of 0 or 1 in a fluidized bed reactor is provided. A chloromethane-containing reaction gas is reacted with a particulate contact mass containing silicon in the presence of copper catalyst. An operating granulation contains at least 1% by mass of silicon-containing particles S described by a structural parameter S. S has a value of at least 0 and is calculated according to equation (1), S = ( ? s - 0.70 ) · ? SD ? F , wherein ?S is symmetry-weighted sphericity factor, ?SD is poured density [g/cm3], and ?F is average particle solids density [g/cm3].
    Type: Application
    Filed: June 14, 2019
    Publication date: April 21, 2022
    Applicant: Wacker Chemie AG
    Inventors: Karl-Heinz Rimböck, Michael Müller, Natalia Sofina
  • Publication number: 20220112376
    Abstract: One-part room-temperature curable compositions (RTV-1 compositions) based on organosilicon compounds are less toxic compared to conventional compositions containing organotin compounds and, at the same time, have excellent curing properties, a skin formation time which allows proper handling and tooling, and excellent storage stability. The compositions contain: at least one organosilicon compound containing condensable groups; at least one curing agent having the formula R?Si(OOCR?)3, wherein R? is C3-C6 alkyl, and R? is C1-C6 alkyl; at least one organotitanium compound curing catalyst; and at least one filler.
    Type: Application
    Filed: December 22, 2021
    Publication date: April 14, 2022
    Applicant: WACKER CHEMIE AG
    Inventors: Torsten SIXT, Jian NIE
  • Patent number: 11299658
    Abstract: Tiles are adhesively bonded to substrates such as kitchen or bathroom walls by a process in which a tile adhesive is used, the tile adhesive being a one component RTV-1 moisture-curable tile adhesives having properties superior to conventional cementitious and RTU tile adhesives, which contain at least one low viscosity alkoxysilyl-functional polymer, a silicone resin, an aminoalkyl-functional alkoxysilane or partial hydrolysate thereof, and in excess of 60 weight percent mineral filler, of which at least 50 weight percent is a non-reinforcing filler.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: April 12, 2022
    Assignee: WACKER CHEMIE AG
    Inventors: Daniel J. Mania, Jerry Havens
  • Patent number: 11299592
    Abstract: Silicone resins are reproducibly prepared in a four step process in which alcohol recovered in a second step is recycled to the first step, and an aqueous phase recovered in the fourth step contains very little HCl, alcohol, or organopolysiloxane, and can be directed to waste treatment without any prior processing.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: April 12, 2022
    Assignee: WACKER CHEMIE AG
    Inventors: Klaus Kaeppler, Elfriede Thumser
  • Publication number: 20220089873
    Abstract: Solvent-swollen crosslinked silicone gels containing covalently bonded cyclodextrin groups are prepared by hydrosilylation. The swollen gels are storage stable, compatible with water and polar solvents, and display a significant water break effect.
    Type: Application
    Filed: December 29, 2018
    Publication date: March 24, 2022
    Applicant: WACKER CHEMIE AG
    Inventors: Amitabha MITRA, Sarah BURKE, Feng WANG, Christian HARTMAN, Margaret WHITTON, Chelsea GRIMM
  • Publication number: 20220089449
    Abstract: The present disclosure relates to a process for producing chlorosilanes by reaction of a reaction gas containing hydrogen, tetrachlorosilane and optionally at least one further chlorosilane in a reactor and optionally in the presence of a catalyst. The chlorosilanes have the general formula HnSiCl4-n, and the reactor design is described by an index K1, the composition of the reaction gas before entry into the reactor is described by an index K2, and the reaction conditions are described by an index K3.
    Type: Application
    Filed: December 19, 2018
    Publication date: March 24, 2022
    Applicant: Wacker Chemie AG
    Inventors: Karl-Heinz Rimböck, Andreas Hirschmann
  • Publication number: 20220073654
    Abstract: A polymerization reactor for producing aqueous polymer dispersions by radically initiated emulsion polymerization of one or more ethylenically unsaturated monomers in the presence of one or more protective colloids and/or emulsifiers, is cleaned by initially charging an aqueous mixture comprising one or more ethylenically unsaturated monomers, one or more protective colloids and/or emulsifiers, but no oxidation initiator, the proportion of ethylenically unsaturated monomers being 20 to 70% by weight of the aqueous mixture, heating the aqueous mixture to a temperature of 50° C. to 100° C. for 5 minutes to 3 hours, adding one or more initiators and optionally further starting materials, initiating polymerization, removing the aqueous polymer dispersion thus obtained from the polymerization reactor and post-treating the dispersion to remove wall deposits detached during the process.
    Type: Application
    Filed: May 10, 2019
    Publication date: March 10, 2022
    Applicant: WACKER CHEMIE AG
    Inventors: Hans-Peter WEITZEL, Robert BRAUNSPERGER
  • Publication number: 20220073357
    Abstract: The present disclosure relates to a process for producing chlorosilanes in a fluidized bed reactor by reaction of a hydrogen and silicon tetrachloride-containing reaction gas with a particulate contact mass containing silicon and a catalyst. The chlorosilanes have the general formula HnSiCl4?n and/or HmCl6?mSi2. The reactor design is described by an index K1, the constitution of the contact mass is described by an index K2 and the reaction conditions are described by an index K3.
    Type: Application
    Filed: December 18, 2018
    Publication date: March 10, 2022
    Applicant: Wacker Chemie AG
    Inventor: Karl-Heinz Rimboeck
  • Publication number: 20220056217
    Abstract: A process for preparing spherical silicone resin particles in which alkoxysilanes are reacted with water to form a hydrolysate is provided. The resulting silicone resin particles are isolated from a mixture. The silicone resin particles are dried and the particles are deagglomerated by ultrasonic sieving.
    Type: Application
    Filed: December 10, 2018
    Publication date: February 24, 2022
    Applicant: Wacker Chemie AG
    Inventors: Sebastian Knör, Sebastian Kröner
  • Publication number: 20220041774
    Abstract: Aqueous polymer dispersions are produced by radically initiated emulsion polymerization of ethylenically unsaturated monomers in the presence of protective colloids and/or emulsifiers in a continuously operated tubular reactor, characterized in that the direction of flow of the reactor contents is reversed along the longitudinal axis of the reactor over the course of polymerization.
    Type: Application
    Filed: April 30, 2019
    Publication date: February 10, 2022
    Applicant: WACKER CHEMIE AG
    Inventors: Hans-Peter WEITZEL, Robert BRAUNSPERGER
  • Publication number: 20220041455
    Abstract: The present disclosure relates to a process for producing chlorosilanes in a fluidized bed reactor by reacting a hydrogen chloride-containing reaction gas with a particulate contact mass containing silicon and optionally a catalyst. The chlorosilanes have the general formula HnSiCl4-n and/or HmCl6-mSi2. The reactor design is described by an index K1, the constitution of the contact mass without catalyst is described by an index K2uncat, the constitution of the contact mass with catalyst is described by an index K2cat, and the reaction conditions are described by an index K3.
    Type: Application
    Filed: December 18, 2018
    Publication date: February 10, 2022
    Applicant: Wacker Chemie AG
    Inventors: Karl-Heinz Rimboeck, Tassilo Freiherr von Aretin, Johannes Sundberg
  • Patent number: 11236232
    Abstract: Crosslinkable compositions contain (1) organosilicon compounds which have radicals containing aliphatic carbon-carbon multiple bonds (2) organosilicon compounds having Si-bonded hydrogen atoms (3) catalysts which promote the addition of Si-bonded hydrogen onto aliphatic multiple bond and (4) agents which retard the addition of Si-bonded hydrogen onto aliphatic multiple bond at room temperature of the formula CH2?C(R2)—CR1(OH)—R??(I) wherein R is hydrogen or a monovalent hydrocarbon radical having 1 to 12 carbon atoms, optionally substituted with one or more hydroxyl groups, with the proviso that R is not hydrogen if R1 and R are both hydrogen, R1 is hydrogen or a monovalent hydrocarbon radical having 1 to 12 carbon atoms, or R1 together with R form a cyclic hydrocarbon radical having 1 to 12 carbon atoms and R2 is hydrogen or a monovalent hydrocarbon radical having 1 to 12 carbon atoms.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: February 1, 2022
    Assignee: WACKER CHEMIE AG
    Inventors: Timothy Rummel, Kathleen Beekel, Joel Kennard, Christine Klingler, Keith Stowell