Patents Represented by Law Firm Millen and White
  • Patent number: 4835196
    Abstract: A process for the production of a free flowing filled elastomer powder by combining an elastomer latex with a filler suspension is disclosed wherein the combining of elastomer latex and filler suspension takes place in the presence of about 0.1-15 parts by weight--calculated per 100 parts by weight of elastomer solid in the elastomer latex--of a high-molecular-weight amine with quaternary nitrogen functions and with an average molecular weight of about 10.sup.4 to 10.sup.8.
    Type: Grant
    Filed: March 2, 1987
    Date of Patent: May 30, 1989
    Assignee: Huels Aktiengesellschaft
    Inventors: Michael Mueller, Walter Kleinert
  • Patent number: 4744832
    Abstract: The application relates to a pearlescent pigments based on platelet-like substrates, such as mica, which are coated with metal oxides, the metal oxide layer containing titanium and also iron, wherein the pigment has a multi-layer structure in which a first layer of TiO.sub.2 in the rutile form is followed by a layer of pseudobrookite and an iron oxide layer.
    Type: Grant
    Filed: August 7, 1986
    Date of Patent: May 17, 1988
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Klaus D. Franz, Klaus Ambrosius
  • Patent number: 4708986
    Abstract: The invention relates to a process for the production of molding compositions from a thermoplastic polycondensation resin susceptible to degredation at high temperature in the presence of H.sub.2 O, to which is admixed a second synthetic resin, present as an aqueous latex, at temperatures in the range of 150.degree.-300.degree. C. and under a pressure in the range of 1-100 bar under the effect of high shear forces, for a time sufficient to provide the desired molding composition without substantially degrading the polycondensation resin.
    Type: Grant
    Filed: September 13, 1985
    Date of Patent: November 24, 1987
    Assignee: Huels Aktiengesellschaft
    Inventors: Christian Gerth, Michael Droscher
  • Patent number: 4606845
    Abstract: New bicyclohexylethanes of formula IR.sup.1 --Cy--Cy--CH.sub.2 CH.sub.2 --A--(Cy).sub.n --R.sup.2 (I)wherein R.sup.1 is alkyl; R.sup.2 is alkyl, in which one or two non-adjacent CH.sub.2 groups can be replaced by O atoms, or is F, Cl, Br, CN, --COOalkyl or --O--CO-alkyl; or one of the radicals R.sup.1 and R.sup.2 can also be H; A is Cy, or 1,4-phenylene which is unsubstituted or substituted by one or two F and/or Cl atoms and/or CH.sub.3 groups or by a CN group; Cy is 1,4-cyclohexylene and n is 0 or 1; the alkyl groups in each case containing 1-10 C atoms, with the proviso that n is 1 if A is Cy and R.sup.2 is CN,can be used as constituents of dielectrics for electrooptical display elements.
    Type: Grant
    Filed: May 14, 1984
    Date of Patent: August 19, 1986
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Michael Romer, Rudolf Eidenschink, Joachim Krause, Bernhard Scheuble, Georg Weber
  • Patent number: 4592759
    Abstract: Coarse coal particles are pulverized to at least 70% passing through a standard 200 mesh screen in the presence of water in an amount to form aqueous coal slurries having a coal concentration from 60 to 80% by weight. The pulverization is carried out also in the presence of polyether typed polyoxyalkylene adducts having a high molecular weight with polyols having at least three active hydrogen atoms, phenol/aldehyde condensates of polyalkyleneimines, or derivatives of these adducts.
    Type: Grant
    Filed: February 17, 1984
    Date of Patent: June 3, 1986
    Assignee: Dai-Ichi Kogyo Seiyaku Co., Ltd.
    Inventors: Akihiro Naka, Tominobu Mayuzumi, Hiroshi Sugiyama
  • Patent number: 4570709
    Abstract: A method for effecting logging or servicing operations in a predetermined zone of a well, following an initial portion thereof, comprising fastening a logging or servicing tool body at the end of a string of rods lowered into the well, said tool body being provided with an electric male connector, lowering at the end of an electric transmission cable, from the surface, a female connector adapted to fit the male connector, coupling said female and male connectors by the action of a force generated at least partly by the pressure of a fluid pumped through the string of rods, supplying electric power, through said transmission cable and said connectors, to said logging or servicing tool for its operation in said predetermined zone, and with rotating means located between the string of rods and said tool, rotating the tool without rotating the whole string of rods.
    Type: Grant
    Filed: April 5, 1984
    Date of Patent: February 18, 1986
    Assignee: Institut Francais du Petrole
    Inventor: Christian Wittrisch
  • Patent number: 4498999
    Abstract: Buildings are advantageously heated or heat-conditioned with a heat pump operated with a non-azeotropic mixture consisting essentially of two working fluids, with the mixture comprising a major component of monochlorodifluoromethane (R 22) and a minor component of trifluoromethane (R 23).
    Type: Grant
    Filed: November 2, 1982
    Date of Patent: February 12, 1985
    Assignee: Institut Francais du Petrole
    Inventors: Claude Ramet, Alexandre Rojey
  • Patent number: 4460553
    Abstract: Process for hydrodesulfurizing a gas comprising together methane, at least one organic sulfur compound and oxygen, characterized by the step of passing a mixture of said gas with a hydrogen containing gas on a palladium catalyst at a temperature of 300.degree. to 450.degree. C.The gas usually comprises at least 2 mg/Nm.sup.3 of sulfur as organic sulfur and 0.05 to 2% by volume of oxygen.
    Type: Grant
    Filed: February 15, 1983
    Date of Patent: July 17, 1984
    Assignee: Institut Francais du Petrole
    Inventors: Andre Deschamps, Jean Cosyns, Jean-Francois Le Page
  • Patent number: 4253539
    Abstract: Device for generating acoustic waves by implosion in a fluid medium comprising fluid-operated means to move a piston, having one end face in contact with said fluid, from a retracted position in the enclosure to a spaced apart position of maximum extension towards the exterior of the enclosure or vice versa and intermittent locking means for maintaining the piston at its spaced apart position, said fluid-operated means being actuated by two sources of fluid at different pressures, one of which is said fluid medium and the other a source of lower pressure.
    Type: Grant
    Filed: February 2, 1979
    Date of Patent: March 3, 1981
    Assignee: Institut Francais du Petrole
    Inventor: Pierre Magneville
  • Patent number: 4080446
    Abstract: 2-(4,5-BIS-P-CHLOROPHENYLOXAZOL-2-YL-MERCAPTO)-PROPIONIC ACID AND ITS PHYSIOLOGICALLY ACCEPTABLE SALTS IS USEFUL FOR SUPPRESSING AGGREGATION OF THROMBOCYTES, PARTICULARLY WHEN ADMINISTERED IN COMBINATION WITH ASPIRIN.
    Type: Grant
    Filed: November 4, 1976
    Date of Patent: March 21, 1978
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Gotz Leopold, Reinhard Lissner, Jurgen Maisenbacher, Werner Mehrhof, Joachim Gante