Patents by Inventor Willibald Burger

Willibald Burger 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: 7319119
    Abstract: Oil-in-water emulsions which contain (i) 100 parts by weight of a polydimethylsiloxane (P) having aminoalkyl groups and having an amine number of at least 0.1 meq/g of polydimethylsiloxane (P), composed of units of the general formula I R1aR2bSiO(4?a?b/2),??(I) ?in which R2 are aminoalkyl radials of the formula II —R3—NR4R5,,??(II) (ii) protonating agent, (iii) water and (iv) not more than 5 parts by weight of emulsifier, are stable and provide for improved water repellency of porous and nonporous, absorptive and non-absorptive substrates treated therewith.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: January 15, 2008
    Assignee: Wacker Chemie AG
    Inventors: Günter Mahr, Franz X. Wimmer, Willibald Burger, Ludwig Esterbauer
  • Patent number: 7105581
    Abstract: An antifoam formulations comprise (A) antifoam agent based on siloxanes and (B) branched polyether/polysiloxane copolymers comprising structural units of the formula Y[—CnH2n—(R2SiO)m—Ap—R2Si—G]x??(I) in which Y is a multivalent, optionally heteroatom-containing hydrocarbon radical, R are monovalent optionally halogenated hydrocarbon radicals, A is a radical —R2Si—R2—(R2SiO)m—, G is a monovalent radical —CfH2f-2k—Z or a divalent radical —CnH2n— bonded to a radical Y, Z —(R6)v—(OCH2CH2)a[OCH2CH(CH3)]b[OCH2CH(CH2CH3)]c—OR3, in which R3 is hydrogen, a hydrocarbon radical, or a radical R—C(O)—, R6 is a divalent hydrocarbon radical, v is 0 or 1, a, b and c are 0 or an integer between 1 and 1000, the sum (a+b+c) being from 2 to 2000, x is 3 to 10, f is 2 to 12, k is 0 or 1, n is 2 to 12, m is at least 1, and p is 0 or a positive integer, the branched polyether/polysiloxane copolymers (B) containing on average at least one group Z.
    Type: Grant
    Filed: November 7, 2003
    Date of Patent: September 12, 2006
    Assignee: Wacker-Chemie GmbH
    Inventors: Willibald Burger, Holger Rautschek, Christian Herzig
  • Publication number: 20060041026
    Abstract: Oil-in-water emulsions which contain (i) 100 parts by weight of a polydimethylsiloxane (P) having aminoalkyl groups and having an amine number of at least 0.1 meq/g of polydimethylsiloxane (P), composed of units of the general formula I R1aR2bSiO(4-a-b/2)??(I), in which R2 are aminoalkyl radials of the formula II —R3—NR4R5,??(II), (ii) protonating agent, (iii) water and (iv) not more than 5 parts by weight of emulsifier, are stable and provide for improved water repellency of porous and nonporous, absorptive and non-absorptive substrates treated therewith.
    Type: Application
    Filed: December 8, 2004
    Publication date: February 23, 2006
    Applicant: Wacker-Chemie GmbH
    Inventors: Gunter Mahr, Franz Wimmer, Willibald Burger, Ludwig Esterbauer
  • Publication number: 20040106749
    Abstract: An antifoam formulations comprise
    Type: Application
    Filed: November 7, 2003
    Publication date: June 3, 2004
    Applicant: Wacker-Chemie GmbH
    Inventors: Willibald Burger, Holger Rautschek, Christian Herzig
  • Patent number: 6605183
    Abstract: Antifoam formulations contain a siloxane antifoam and a polyether/polysiloxane copolymer of the general formula (R2R*SiO)2(RR′SiO)x(R2SiO)y(RR″SiO)2  (I) wherein R* is either R, R′, or R″, and wherein R′ is R1O—(CH2CH2O)a[CH2CH(CH3)O]b[CH2CH(CH2CH3)O]c—R2—  (R′) and wherein R″ is —R2—O—(CH2CH2O)d[CH2CH(CH3)O]e[CH2CH(CH2CH3)O]f—R2—  (R″) wherein R, R1, R2, a, b, c, d, e, f, x, y, and z are defined herein.
    Type: Grant
    Filed: July 27, 2000
    Date of Patent: August 12, 2003
    Assignee: Wacker-Chemie GmbH
    Inventors: Holger Rautschek, Willibald Burger, Josef Wimmer, Erika Zscheile, Christine Wolf
  • Patent number: 6521084
    Abstract: In a process for extracting cellulose from fibrous materials such as wood, the fibrous materials are reacted with a chemical disintegration solution in the presence of organosilicic compounds.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: February 18, 2003
    Assignee: Wacker-Chemie GmbH
    Inventors: Willibald Burger, Outi Neubig, Kimmo Lappalainen, Hannu Wahlberg
  • Patent number: 6206102
    Abstract: The invention relates to a method for stabilizing the gas flow in water-bearing natural gas deposits or reservoirs which produce at least 50 l of water per 1000 m3 (Vn) of extracted natural gas. According to the method, a dispersion comprising the following components is injected into the water-bearing rock: A) an organosilicon compound as the dispersed phase; B) a hydrophilic dispersion agent, which can be mixed with water, and, if needed, C) a dispersing additive.
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: March 27, 2001
    Assignee: Wacker-Chemie GmbH
    Inventors: Gunter Pusch, Rudiger Meyn, Willibald Burger, Michael Geck
  • Patent number: 6182759
    Abstract: The gas flow in water-containing natural gas wells and natural gas storage wells is improved if a homogeneous phase comprising a water-repellent, solvolysis-resistant active compound is injected into the water-bearing rock.
    Type: Grant
    Filed: October 9, 1998
    Date of Patent: February 6, 2001
    Assignee: Wacker-Chemie GmbH
    Inventors: Willibald Burger, Hans Mayer, Robert Schröck, Holger Wöltje, Bernward Deubzer, Hans Lautenschlager
  • Patent number: 6165948
    Abstract: The invention relates to a process for drying out rock containing immobile formation water in the intake radius of natural gas wells and gas storage wells which deliver less than 50 l of water per 1000 m.sup.3 (S.T.P.) of natural gas produced, in which a dispersion comprising the componentsA) a water-repellent active compound,B) hydrophilic water-miscible dispersion medium, with or withoutC) a dispersant renders the water-containing rock hydrophobic.
    Type: Grant
    Filed: June 10, 1999
    Date of Patent: December 26, 2000
    Assignee: Wacker-Chemie GmbH
    Inventors: Wendelin Dewenter, Kai-Udo Sewe, Willibald Burger, Michael Geck, Ludwig Esterbauer
  • Patent number: 5630474
    Abstract: In the process of the present invention, crude oil is extracted from crude oil-containing deposits with the aid of an emulsion containing the components(A) 100 parts by weight of organopolysiloxane(B) 10 to 100 parts by weight of surfactant and(C) water.
    Type: Grant
    Filed: September 25, 1995
    Date of Patent: May 20, 1997
    Assignee: Wacker-Chemie GmbH
    Inventors: Willibald Burger, Peter Huber, Piotr Meschkov, Serguei V. Goussevt, Vladimir V. Mazajev, Jaroslav G. Koval
  • Patent number: 5474709
    Abstract: A process for defoaming and/or degassing organic systems by addition of an organopolysiloxane-containing anti-foaming agent to the organic system is characterized by the fact that the organopolysiloxane used is one composed of siloxane units having the general formulae (I) and (II), in which R is a univalent hydrocarbon residue with 1 to 18 carbon atoms per residue; A is a residue having the general formula (a), in which R.sup.1 is a residue having the formula --CR.sup.3 H--, where R.sup.3 stands for a hydrogen atom or a univalent organic residue; R.sup.2 is a residue having the formulae --CR.sup.4 H--CH.sub.2 -- or --CH.sub.2 CH.sub.2 CH.sub.2 -- where R.sup.4 stands for a hydrogen atom or a univalent organic residue; v and w represent each O or an integer, the sum of v+w being in average 0 to 16; x and y represent each 0 or 1, the sum x+y being 1 or 2; a equals 1,2 or 3; b equals 0, 1 or 2 and c equals 1 or 2, the sum b+c not exceeding 3.
    Type: Grant
    Filed: February 24, 1993
    Date of Patent: December 12, 1995
    Assignee: Wacker-Chemie GmbH
    Inventors: Christian Herzig, Willibald Burger, Ernst Innertsberger, Peter Huber, Martina Blochl
  • Patent number: 5446119
    Abstract: Organopolysiloxanes which contain ester groups and comprise units of the formula ##EQU1## in which R may be an identical or different monovalent, SiC-bonded hydrocarbon radical having 1 to 18 carbon atoms,A may be an identical or different radical of the formula ##STR1## in which R.sup.1, R.sup.2, R.sup.3, c, v, w, s, t,is 0 or an integer, the sum of s and tbeing an integer from 1 to 20,x is 0 or 1,y is 0 or 1, the sum of x and y being 1 or 2,a is 0, 1, 2 or 3, andb is 0, 1 or 2,with the proviso that the sum of a and b is less than or equal to 3 and the organopolysiloxane contains at least one radical A per molecule.
    Type: Grant
    Filed: July 25, 1994
    Date of Patent: August 29, 1995
    Assignee: Wacker-Chemie GmbH
    Inventors: Christian Herzig, Willibald Burger, Bernward Deubzer, Martina Bloechl
  • Patent number: 4919843
    Abstract: The invention relates to antifoam compositions containing an essentially linear organopolysiloxane, a silicone resin containing essentially triorganosiloxy and SiO.sub.4/2 units, and a filler.
    Type: Grant
    Filed: July 22, 1988
    Date of Patent: April 24, 1990
    Assignee: Wacker-Chemie GmbH
    Inventors: Ernst Innertsberger, Jakob Schmidlkofer, Peter Huber, Willibald Burger, Joachim Schulze