Patents by Inventor Gunter Mahr

Gunter Mahr 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
  • 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
  • Patent number: 6506444
    Abstract: The invention relates to a composition which comprises at least one polyorganosiloxane in aqueous solution or dispersion, in the absence of additional dispersants.
    Type: Grant
    Filed: August 15, 2000
    Date of Patent: January 14, 2003
    Assignee: Wacker-Chemie GmbH
    Inventors: Günter Mahr, Tadahiro Okabe, Kengo Ito
  • Patent number: 6387166
    Abstract: The present invention provides polishes for surfaces, comprising aminoorganopolysiloxanes (A) which are solid at room temperature, contain fluoro groups and are able to change their aggregate state reversibly as a result of changes in temperature.
    Type: Grant
    Filed: May 18, 2000
    Date of Patent: May 14, 2002
    Assignee: Wacker-Chemie GmbH
    Inventors: Bors C. Abele, Günter Mahr, Jörn Winterfeld, Franz Wimmer, Anton Spannbrucker
  • Patent number: 6201058
    Abstract: The invention relates to organopolysiloxanes that have amino groups and are solid at room temperature which can reversibly change their states of aggregation on the basis of temperature changes. Preparations containing these organopolysiloxanes are useful in the cleaning, care, and hydrophobicization of surfaces.
    Type: Grant
    Filed: October 26, 1998
    Date of Patent: March 13, 2001
    Assignee: Wacker-Chemie GmbH
    Inventors: Günter Mahr, Franz X. Wimmer, Jörn Winterfeld
  • Patent number: 6194534
    Abstract: The invention relates to organopolysiloxanes with dye residues comprising units of the general formula R1a(RO)bAcR2dSiO(4−a−b−c−d)/2  (I) wherein R can be identical or different and is hydrogen atom or monovalent, substituted or unsubstituted hydrocarbon radical, R1 can be identical or different and is hydrogen atom or monovalent, SC-bonded hydrocarbon radical, R2 can be identical or different and is substituted, monovalent, Si—C bonded hydrocarbon radical, A can be identical or different and is a radical of a water-soluble organic dye containing at least one of sulfonic acid groups, sulfonate groups, or metal complexes thereof, a is 0, 1, 2, or 3, b is 0, 1, 2 or 3, d is 0, 1, 2, or 3 and c is 0, 1 or 2 with the proviso that the sum of a, b, c and d is less than or equal to 3, the organopolysiloxanes have at least one radical, and, in the units of the formula (I) where c is other than 0, d is 0.
    Type: Grant
    Filed: September 20, 1999
    Date of Patent: February 27, 2001
    Assignee: Wacker-Chemie GmbH
    Inventors: Frank Baumann, Gunter Mahr, Bernward Deubzer
  • Patent number: 5626660
    Abstract: The optically clear compositions comprising(A) an organopolysiloxane which contains at least one monovalent SiC-bonded radical with primary, secondary and/or tertiary amino groups,(B) 0.01 to 1 part by weight per 100 parts by weight of organopolysiloxane (A) of a group of compounds consisting of water, methanol and ethanol and(C) 0.05 to 20 parts by weight of a solubilizing agent per 100 parts by weight of organopolysiloxane (A), chosen from a group consisting of(C1) C.sub.1 - to C.sub.19 -carboxylic acid C.sub.1 - to C.sub.12 -alkyl esters and -glycol esters,(C2) C.sub.3 - to C.sub.20 -alkanols and C.sub.3 - to C.sub.20 -alkanol-C.sub.1 - to C.sub.12 -alkoxylates and(C3) organosilicon compounds containing glycoside radicals.
    Type: Grant
    Filed: January 30, 1996
    Date of Patent: May 6, 1997
    Assignee: Wacker-Chemie GmbH
    Inventors: Hans-Jurgen Lautenschlager, Gunter Mahr