Patents Assigned to Wacker-Chemie GmbH
  • Patent number: 6861447
    Abstract: A method is provided for producing a coenzyme Q10/?-cyclodextrin complex. This method provides that a mixture of ?-cyclodextrin and coenzyme Q10 is treated by homogenisation and inputting energy.
    Type: Grant
    Filed: January 11, 2001
    Date of Patent: March 1, 2005
    Assignee: Wacker-Chemie GmbH
    Inventors: Jens Moldenhauer, Jan Cully
  • Publication number: 20050042462
    Abstract: Self-adhesive addition-crosslinking silicone compositions, contain two adhesion promoters, a first, multinuclear aromatic compound containing at least one moiety of aliphatic unsaturation, and a low viscosity organopolysiloxane having at least one terminal, silicon-bonded hydrogen. The addition curable materials exhibit strong adhesion to substrates, even substrates which have exhibited problematic adhesion to silicone elastomers in the past.
    Type: Application
    Filed: July 21, 2004
    Publication date: February 24, 2005
    Applicant: Wacker-Chemie GmbH
    Inventors: Armin Fehn, Philipp Mueller
  • Publication number: 20050034430
    Abstract: A process for the cost-effective packaging of high purity polysilicon fragments has the polysilicon fragments being packaged automatically.
    Type: Application
    Filed: September 20, 2004
    Publication date: February 17, 2005
    Applicant: WACKER-CHEMIE GMBH
    Inventors: Rainer Holzlwimmer, Axel Frauenknecht
  • Patent number: 6841694
    Abstract: A process for stabilizing organosilicon compounds bearing unsaturated groups during their preparation, distillation, and/or storage, the organosilicon compounds bearing unsaturated groups having been obtained by reacting a haloalkylsilane with a salt of an unsaturated organic acid, by adding one or more compounds of the formula I wherein R1 and R2 are identical or different linear or branched C1-20 alkyl, and the radicals R3 are identical or different and are hydrogen or linear or branched alkyl radicals having 1-20 carbon atoms.
    Type: Grant
    Filed: February 4, 2004
    Date of Patent: January 11, 2005
    Assignee: Wacker-Chemie GmbH
    Inventor: Juergen Pfeiffer
  • Publication number: 20050004296
    Abstract: The invention relates to a pelletized organopolysiloxane material, to a process for producing the pelletized material, and to the use of the pelletized organopolysiloxane material as an additive for thermoplastics.
    Type: Application
    Filed: June 25, 2004
    Publication date: January 6, 2005
    Applicant: Wacker-Chemie GmbH
    Inventors: Michael Geck, Peter Jerschow, Gerhard Staiger, Oliver Fuhrmann
  • Patent number: 6835419
    Abstract: The invention relates to novel organosilicon compounds comprising ammonium groups, said compounds being soluble in isopropanol or diethylene glycol monobutyl ether, and containing: a) at least one structural unit of general formula (I) wherein R2 represents a bivalent organic radical containing a hydroxyl group which is conditioned by a ring opening of an epoxy group; R3 represents a hydrogen atom or a monovalent hydrocarbon radical comprising 1 to 60 carbon atoms per radical, and can be split or substituted by at least one separate heteroatom chosen from the group consisting of nitrogen, oxygen, sulphur or halogen atoms; R4 represents a bivalent hydrocarbon radical comprising 1 to 10 carbon atoms per radical; n represents 0 or a whole number from 1 to 10; m represents a whole number from 1 to the total number of nitrogen atoms in (I); x represents 0 or 1; and X− represents an anion, b) at least one siloxane unit of general formula (II), and c) at least two siloxane units of general formula (III) wherei
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: December 28, 2004
    Assignee: Wacker-Chemie GmbH
    Inventors: Christian Herzig, Robert Banfic
  • Publication number: 20040254325
    Abstract: The invention relates to a process for preparing organopolysiloxane/polyurea/polyurethane block copolymers, and also to the use of the organopolysiloxane/polyurea/polyurethane block copolymers prepared by means of the process.
    Type: Application
    Filed: May 26, 2004
    Publication date: December 16, 2004
    Applicant: Wacker-Chemie GmbH
    Inventors: Juergen Kuepfer, Oliver Schaefer
  • Publication number: 20040249179
    Abstract: Organosilicon compounds containing isocyanate groups and composed of units (Ia)
    Type: Application
    Filed: May 11, 2004
    Publication date: December 9, 2004
    Applicant: Wacker-Chemie GmbH
    Inventor: Thomas Kornek
  • Publication number: 20040237588
    Abstract: A process for producing an SiO2 shaped body which is at least partially vitrified, wherein an amorphous, porous SiO2 green body is sintered or vitrified by contactless heating by means of radiation, while avoiding contamination to the SiO2 shaped body with foreign atoms, wherein the radiation used is the beam of a laser at a subatmospheric pressure below 1000 mbar.
    Type: Application
    Filed: May 27, 2004
    Publication date: December 2, 2004
    Applicant: Wacker-Chemie GmbH
    Inventors: Fritz Schwertfeger, Jens Guenster, Sven Engler, Juergen Heinrich
  • Patent number: 6824881
    Abstract: Thermoplastic silicon block copolymers containing (A) a hard segment polymer constituent prepared from styrene, methylmethacrylate, butylacrylate, acrylonitrile, vinyl monomers, or mixtures therefore, and (B) a soft segment polymer constituent of general formula (I) G-[(SiR2O)mSiR2—X—]n(SiR2O)mSiR2-G wherein R is an optionally halogenated monovalent C1-18 hydrocarbon radical and X is a specific aryl group-containing, silicon bonded radical, and each G may be a radical (A)-Z-(Si) or Z′-(Si) wherein -Z- represents an aryl group-containing bivalent radical and Z′- represents a monovalent aryl group-containing radical, provided that there is, at most, one radical G and one radical Z′- in formula (I). In formula (I), m represents a whole number between 1 and 1000 and n represents 0 or a whole number between 1 and 20, provided that when n does not equal 0, 4≦n·m≦1000.
    Type: Grant
    Filed: June 23, 2003
    Date of Patent: November 30, 2004
    Assignee: Wacker-Chemie GmbH
    Inventors: Hans Lautenschlager, Jochen Dauth, Wolfgang Keller, Theo Mayer, Kurt Stark
  • Publication number: 20040224120
    Abstract: A vacuum insulation panel, comprising a thermally insulating plate with an planar topside and underside and a narrow side in an enclosure comprising a metal-containing film (foil), with a subatmospheric pressure prevailing in the enclosure and the enclosure surrounding the thermally insulating plate in a vacuum-tight manner. The enclosure has, on the narrow side, a weld seam with a projecting section of the foil. The narrow sides of the plate are beveled and the vacuum insulation panel is in the form of a parallelepiped. The weld seam with the projecting section of foil is arranged in such a manner that it allows the vacuum insulation panels to be assembled without gaps to form an insulating enclosure.
    Type: Application
    Filed: May 4, 2004
    Publication date: November 11, 2004
    Applicant: Wacker-Chemie GmbH
    Inventors: Thomas Eyhorn, Dieter Henn, Hubert Stuhler, Johann Klaus
  • Publication number: 20040225099
    Abstract: Organosilicon compounds contain both cationic quat groups and polyoxyalkylene polyether groups prepared by an efficient process which can utilize commercially available starting materials. The polyether groups are not linked to siloxane moieties by quat linking groups, but rather by amine or ammonium groups. The polyester groups may also serve as linking groups between organosilicon moieties.
    Type: Application
    Filed: April 23, 2004
    Publication date: November 11, 2004
    Applicant: Wacker-Chemie GmbH
    Inventors: Thomas Hohberg, Christian Ochs
  • Patent number: 6815554
    Abstract: A process for preparing unsaturated organosilanes containing organic carbonyloxy groups and having the formula (R1O)3−nR2nSi—X—OC(O)C(R3)═CR32  (I), where R1, R2, and R3 are hydrocarbon groups optionally containing interspersed ether linkages, and optionally substituted, X is an alkylene group, optionally containing ether linkages, and n is 0 to 3, by reacting haloorganofunctional silicon compounds of the formula (R1O)3−nR2nSi—X—Y  (II), where Y is a halogen atom, with a salt of an unsaturated organic carboxylic acid of the formula M+[−OC(O)C(R3)═CR32]o  (III), where M is an alkali or alkaline earth metal and o is 0 or 1 depending on the valence of M, in the presence of a phosphonium salt as phase transfer catalyst.
    Type: Grant
    Filed: April 10, 2002
    Date of Patent: November 9, 2004
    Assignee: Wacker-Chemie GmbH
    Inventors: Juergen Pfeiffer, Peter John
  • Patent number: 6815069
    Abstract: Textile structures comprise fibers and an organopolysiloxane-polyurea-polyurethane block copolymer (A) of the general formula (1) as a coating material or finishing material for fibers where R is a hydrocarbyl group, X is an alkylene group, A and Z are oxygen or primary or secondary amino groups, Y is a divalent hydrocarbyl group, D is an alkylene group, and Q is an end group, 1≦n≦4000, a≧1, 0≦b≦40, O≦C≦30, and d>O. The textile structures exhibit excellent hand, waterproofness, and water vapor permeability, and are stable to lanudering.
    Type: Grant
    Filed: February 13, 2003
    Date of Patent: November 9, 2004
    Assignee: Wacker-Chemie GmbH
    Inventors: Thomas Hohberg, Oliver Schaefer, Johann Mueller, Philippe Moens, Thomas Lehotkay
  • Publication number: 20040216486
    Abstract: A method for the production of a homogenous, shaped SiO2 body of near net shape wherein amorphous SiO2 particles comprising relatively large amorphous SiO2 particles and relatively small amorphous SiO2 particles are electrophoretically deposited from an aqueous dispersion on an electrically nonconductive membrane, the shape and geometry of which correspond to the shaped SiO2 body to be produced, wherein the membrane has an average pore size which is larger than the average particle size of the smaller amorphous SiO2 particles.
    Type: Application
    Filed: April 15, 2004
    Publication date: November 4, 2004
    Applicant: Wacker-Chemie GmbH
    Inventors: Fritz Schwertfeger, Holger Szillat, Jan Tabellion, Rolf Clasen
  • Publication number: 20040220331
    Abstract: A Process for the preparation of materials crosslinkable with elimination of alcohols to give elastomers, wherein
    Type: Application
    Filed: April 28, 2004
    Publication date: November 4, 2004
    Applicant: Wacker-Chemie GmbH
    Inventors: Torsten Sixt, Franz Neuhauser
  • Publication number: 20040220419
    Abstract: A process for preparing a metal oxide having groups of the general formula I
    Type: Application
    Filed: April 29, 2004
    Publication date: November 4, 2004
    Applicant: Wacker-Chemie GmbH
    Inventors: Torsten Gottschalk-Gaudig, Herbert Barthel, Juergen Pfeiffer
  • Patent number: 6800413
    Abstract: A silylated silica having an SiOH density per nm2 of less than 0.6, based on the BET-method surface area (DIN 66131 and 66132), is prepared by silylating silica in a process where loading, reacting, and purifying are performed in separate steps.
    Type: Grant
    Filed: September 9, 2002
    Date of Patent: October 5, 2004
    Assignee: Wacker-Chemie GmbH
    Inventors: Herbert Barthel, Mario Heinemann, Franz Grünwald, Helmut Maginot, Ute Völkel
  • Publication number: 20040192809
    Abstract: A process for preparing organopolysiloxane compositions (A) having a viscosity measured at 25° C. of at least 500 Pa·s., wherein organopolysiloxanes (O) and fillers (F) are mixed and kneaded in a first process stage in a kneading cascade having at least two kneading chambers arranged in series adjacent one another, each containing kneading tools having parallel axes and capable of being driven in co-rotating or counter-rotating directions, the chambers connected to one another by means of openings through which material can pass in a direction transverse to the axes of the kneading tools, with the first kneading chamber having a feed opening and the last kneading chamber having a discharge opening, to give raw mixtures, and the raw mixtures are kneaded and degassed in a reciprocating kneader in a second process stage.
    Type: Application
    Filed: March 17, 2004
    Publication date: September 30, 2004
    Applicant: Wacker-Chemie GmbH
    Inventors: Manfred Heisler, Johann Schuster, Alois Schlierf, Fridolin Stary
  • Patent number: 6790533
    Abstract: The invention relates to self-adhesive thermally crosslinkable 1-component silicone compositions which contain the components defined in claim 1 (A) diorganopolysiloxane, (B) filler which is selected from filler (B1) having a specific surface area of at least 50 m2/g, aluminum hydroxide (B2) and mixtures thereof, (C) organohydrogenpolysiloxanes, (D) organosilcon compound having a vinyl radical, epoxy group, acroyloyloxy or methacryloyloxy group and hydrolyzable groups and (E) hydrosilylation catalyst or peroxide crosslinking agent, the Mooney viscosity of the silicone compositions, determined at 25° C. according to DIN 53523 Part 3, being 20 to 200.
    Type: Grant
    Filed: May 14, 2002
    Date of Patent: September 14, 2004
    Assignee: Wacker-Chemie GmbH
    Inventors: Rudolf Reitmeier, Philipp Mueller, Guenter Vogl, Hans-Joerg Winter