Patents by Inventor Ulf Dietrich

Ulf Dietrich has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12134692
    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: Grant
    Filed: February 26, 2019
    Date of Patent: November 5, 2024
    Assignee: Wacker Chemie AG
    Inventors: Timo Melchin, Ulf Dietrich, Heimo Wölfle
  • Publication number: 20230202924
    Abstract: Polyvinyl alcohol-stabilized (meth)acrylic ester polymers, processes for preparing and uses for the same. Where the polyvinyl alcohol-stabilized (meth)acrylic ester polymers have particle sizes Dw of from 100 to 900 nm in the form of aqueous dispersions or water-redispersible powders. Where the (meth)acrylic ester polymers are based on (a) 1% to 30% by weight of one or more vinyl esters of carboxylic acids having 5 to 15 carbon atoms, (b) 20% to 80% by weight of one or more (meth)acrylic esters, wherein the homopolymer of which has a glass transition temperature Tg of ?20° C., (c) 10% to 70% by weight of one or more (meth)acrylic esters, wherein the homopolymer of which has a glass transition temperature Tg of ?50° C., and (d) optionally one or more further ethylenically unsaturated monomers. The percentages by weight are based on the total weight of the (meth)acrylic ester polymers.
    Type: Application
    Filed: May 5, 2020
    Publication date: June 29, 2023
    Applicant: Wacker Chemie AG
    Inventors: Hans-Peter Weitzel, Ulf Dietrich
  • Publication number: 20230193046
    Abstract: Powder paint composition, processes for preparing and uses for the same. The composition includes (a) at least one polymer powder redispersible in water, (b) pigment and filler and (c) optionally further additives. Where (a) is a polymer stabilized with polyvinyl alcohol, based on (a1) 20 to 100% by weight of at least one monomer from the group consisting of acrylic esters of branched or unbranched alcohols having 1 to 12 carbon atoms, (a2) 0 to 60% by weight of at least one monomer from the group consisting of methacrylic esters of branched or unbranched alcohols having 1 to 12 carbon atoms and styrene, (a3) 0 to 40% by weight of at least one monomer from the group consisting of vinyl esters of branched or unbranched carboxylic acids having 2 to 12 carbon atoms, and (a4) 0 to 20% by weight of other ethylenically unsaturated comonomers copolymerizable therewith.
    Type: Application
    Filed: May 5, 2020
    Publication date: June 22, 2023
    Applicant: Wacker Chemie AG
    Inventors: Lada BEMERT, Stefan BAUEREGGER, Ulf DIETRICH, Hans-Peter WEITZEL
  • 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
  • Publication number: 20210253477
    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: Application
    Filed: November 7, 2018
    Publication date: August 19, 2021
    Applicant: WACKER CHEMIE AG
    Inventors: Hans-Peter WEITZEL, Ulf DIETRICH
  • Patent number: 10538657
    Abstract: Open time and creep resistance of hydraulically settable inorganic construction materials such as mortars and tile adhesives are both improved at the same time by the addition of a polymer mixture in the form of an aqueous dispersion or water-redispersible powder, containing one or more protective colloid-stabilized polymers having units derived from 20% to 30% by weight of vinyl chloride, 50% to 75% by weight of vinyl acetate, 5% to 20% by weight of ethylene, and one or more protective colloid-stabilized, vinyl halide-free polymers of one or more ethylenically unsaturated monomers.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: January 21, 2020
    Assignee: Wacker Chemie AG
    Inventors: Hans-Peter Weitzel, Ulf Dietrich, Peter Fritze, Klas Sorger
  • Patent number: 10227726
    Abstract: The use of redispersible polymer powders containing no organic emulsifier for a binder in the production of carpeting is surprisingly superior to use of the same polymers in the form of an aqueous dispersion. Tuft removal force in particular, is improved. The compositions contain no thickener, or a reduced level of thickener.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: March 12, 2019
    Assignee: WACKER CHEMIE AG
    Inventors: Timo Melchin, Ulf Dietrich, Holger Kuenstle
  • Publication number: 20180244909
    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: February 18, 2016
    Publication date: August 30, 2018
    Applicant: Wacker Chemie AG
    Inventors: Hans-Peter WEITZEL, Ulf DIETRICH, Peter FRITZE, Klas SORGER
  • Publication number: 20170321375
    Abstract: The use of redsipersible polymer powders containing no organic emulsifier for a binder in the production of carpeting is surprisingly superior to use of the same polymers in the form of an aqueous dispersion. Tuft removal force in particular, is improved. The compositions contain no thickener, or a reduced level of thickener.
    Type: Application
    Filed: December 10, 2015
    Publication date: November 9, 2017
    Applicant: Wacker Chemie AG
    Inventors: Timo MELCHIN, Ulf DIETRICH, Holger KUENSTLE
  • Patent number: 8314170
    Abstract: Dispersing agents especially useful as cement plasticizers are copolymers obtained by polymerizing a) 5 to 70 percent by weight of ethylenically unsaturated monocarboxylic acids, carboxylic acid amides, dicarboxylic acids, or their anhydrides and/or (meth)acrylic acid monoesters of dialcohols, b) 1 to 40 percent ethylenically unsaturated, sulfonate-functional or sulfate-functional compounds, c) 10-80 percent of ethylenically unsaturated compounds of polyethylene glycols containing 1 to 300 ethylene oxide units, and terminal OH groups or —OR? ether groups, d) 5 to 80 percent of ethylenically unsaturated compounds of polyalkylene glycol containing 1 to 300 C3-4 alkylene oxide units and terminal OH groups or —OR? ether groups, the percentages totaling 100 percent by weight.
    Type: Grant
    Filed: March 4, 2004
    Date of Patent: November 20, 2012
    Assignee: Wacker Chemie AG
    Inventors: Ulf Dietrich, Anke Reinschmidt
  • Patent number: 8232439
    Abstract: The present invention relates to the use of isoalkane mixtures for reducing or minimizing the dust emission during the handling of pulverulent construction chemistry products, a process for the preparation of the pulverulent construction chemistry products, and hydraulically setting materials comprising the isoalkane mixtures according to the invention.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: July 31, 2012
    Assignee: BASF SE
    Inventors: Arno Lange, Klaus Seip, Ulf Dietrich, Rainer Papp
  • Publication number: 20110184104
    Abstract: The present invention relates to a process for the preparation of phenolsulfonic acid-aldehyde condensates and the use thereof as drying agents, in particular in the spray drying of aqueous polymer dispersions.
    Type: Application
    Filed: January 21, 2011
    Publication date: July 28, 2011
    Applicant: BASF SE
    Inventors: Corinna NAUNDORF, Sebastien Garnier, Ulf Dietrich, Michael Kluge
  • Publication number: 20110152438
    Abstract: A method of drying a polymer dispersion, wherein a C2-C6-mono- and/or dialdehyde condensate with sulfonated phenols, naphthalenes or sulfonated polynuclear aromatics, alone or mixtures thereof, is contacted with an aqueous polymer dispersion.
    Type: Application
    Filed: August 10, 2009
    Publication date: June 23, 2011
    Applicant: BASF SE
    Inventors: Sebastien Garnier, Corinna Naundorf, Ulf Dietrich
  • Patent number: 7956200
    Abstract: A multimetal oxide of the formula I Aga-bMbV2Ox*cH2O,??I where M is a metal selected from the group consisting of Li, Na, K, Rb, Cs, Tl, Mg, Ca, Sr, Ba, Cu, Zn, Cd, Pb, Cr, Au, Al, Fe, Co, Ni and/or Mo, a is from 0.3 to 1.9 and b is from 0 to 0.5, with the proviso that the difference (a?b)?0.1 and c is from 0 to 20 and x is a number determined by the valence and amount of elements different from oxygen in the formula I, which has a crystal structure giving an X-ray powder diffraction pattern which displays reflections at the lattice spacings d of 15.23±0.6, 12.16±0.4, 10.68±0.3, 3.41±0.04, 3.09±0.04, 3.02±0.04, 2.36±0.04 and 1.80±0.04 ?. Precatalysts and catalysts produced therefrom for the partial oxidation of aromatic hydrocarbons are also provided.
    Type: Grant
    Filed: February 7, 2010
    Date of Patent: June 7, 2011
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Heidemann, Hartmut Hibst, Stefan Bauer, Ulf Dietrich
  • Publication number: 20110028740
    Abstract: What is described is a method for starting a gas phase oxidation reactor that contains a bed of a first catalyst whose active material comprises a catalytically active silver-vanadium oxide bronze, and at least one bed of a second catalyst whose catalytically active material comprises vanadium pentoxide and titanium dioxide, and whose temperature is controllable by means of a heat transfer medium. In the operating state, a gas stream which comprises a loading cop of a hydrocarbon and molecular oxygen is passed through the reactor over the bed of the first and second catalyst at a temperature Top of the heat transfer medium. For the startup, a) a gas stream is passed through the reactor with a starting loading c0 which is less than cop, and at a starting temperature T0 of the heat transfer medium which is less than Top, and b) the temperature of the heat transfer medium is brought to Top and the loading of the gas stream to cop.
    Type: Application
    Filed: April 7, 2009
    Publication date: February 3, 2011
    Applicant: BASF SE
    Inventors: Cornelia Dobner, Ulf Dietrich, Thomas Mackewitz, Sebastian Storck, Hagen Wilmer, Frank Rosowski, Andreas Tenten
  • Publication number: 20100204488
    Abstract: A multimetal oxide of the formula I Aga-bMbV2Ox*cH2O,??I where M is a metal selected from the group consisting of Li, Na, K, Rb, Cs, Tl, Mg, Ca, Sr, Ba, Cu, Zn, Cd, Pb, Cr, Au, Al, Fe, Co, Ni and/or Mo, a is from 0.3 to 1.9 and b is from 0 to 0.5, with the proviso that the difference (a-b) and c is from 0 to 20 and x is a number determined by the valence and amount of elements different from oxygen in the formula I, which has a crystal structure giving an X-ray powder diffraction pattern which displays reflections at the lattice spacings d of 15.23±0.6, 12.16±0.4, 10.68±0.3, 3.41±0.04, 3.09±0.04, 3.02±0.04, 2.36±0.04 and 1.80±0.04 ?. Precatalysts and catalysts produced therefrom for the partial oxidation of aromatic hydrocarbons are also provided.
    Type: Application
    Filed: February 7, 2010
    Publication date: August 12, 2010
    Inventors: Thomas Heidemann, Hartmut Hibst, Stefan Bauer, Ulf Dietrich
  • Publication number: 20100186636
    Abstract: The present invention relates to the use of isoalkane mixtures for reducing or minimizing the dust emission during the handling of pulverulent construction chemistry products, a process for the preparation of the pulverulent construction chemistry products, and hydraulically setting materials comprising the isoalkane mixtures according to the invention.
    Type: Application
    Filed: May 30, 2008
    Publication date: July 29, 2010
    Applicant: BASF SE
    Inventors: Arno Lange, Klaus Seip, Ulf Dietrich, Rainer Papp
  • Patent number: 7674745
    Abstract: A multimetal oxide of the formula I Aga?bMbV2Ox*c H2O,??I where M is a metal selected from the group consisting of Li, Na, K, Rb, Cs, Tl, Mg, Ca, Sr, Ba, Cu, Zn, Cd, Pb, Cr, Au, Al, Fe, Co, Ni and/or Mo, a is from 0.3 to 1.9 and b is from 0 to 0.5, with the proviso that the difference (a?b)?0.1 and c is from 0 to 20 and x is a number determined by the valence and amount of elements different from oxygen in the formula I, has a crystal structure giving an X-ray powder diffraction pattern which displays reflections at the lattice spacings d of 15.23±0.6, 12.16±0.4, 10.68±0.3, 3.41±0.04, 3.09±0.04, 3.02±0.04, 2.36±0.04 and 1.80±0.04 ?. Precatalysts and catalysts produced therefrom for the partial oxidation of aromatic hydrocarbons are also provided.
    Type: Grant
    Filed: December 9, 2004
    Date of Patent: March 9, 2010
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Heidemann, Hartmut Hibst, Stefan Bauer, Ulf Dietrich
  • Publication number: 20080221257
    Abstract: The present invention relates to aqueous dispersions comprising (A) at least one (co)polymer of at least one branched or straight-chain C3-C10-alkene, (B) at least one emulsifies synthesized by (a) preparation of a (co)polymer of isobutene, the (co)polymer having at least one reactive group, (b) functionalization of the (co)polymer of at least one branched or straight-chain C3-C10-alkene, (c) incorporation of at least one hydrophilic unit.
    Type: Application
    Filed: July 28, 2006
    Publication date: September 11, 2008
    Applicant: BASF Aktiengesellschaft
    Inventors: Stefan Becker, Hubertus Peter Bell, Ulf Dietrich, Stephan Huffer, Matthias Kluglein, Darijo Mijolovic