Patents by Inventor Joachim Muller

Joachim Muller 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).

  • Modified membranes
    Patent number: 6884350
    Abstract: A porous polymeric membrane formed from a blend of a polymeric membrane forming material, such as polyvinylidene fluoride or polysulfone and a polymeric reactivity modifying agent adapted to modify the surface active properties of the porous polymeric membrane. The reactivity modifying agent is preferably a linear polymeric anhydride, such as poly(alkyl vinyl ether/maleic anhydride). The surface activity modifications include modification of the hydrophilicity/hydrophobicity balance of the membrane, or hydrolysis followed by reaction with a polyamine to form a crosslinked polyamide layer. Such modified membranes have use as reverse osmosis membranes.
    Type: Grant
    Filed: May 12, 2003
    Date of Patent: April 26, 2005
    Assignee: U.S. Filter Wastewater Group, Inc.
    Inventor: Heinz-Joachim Muller
  • Method for producing a multi metal oxide catalyst, method for producing unsaturated aldehydes and/or carboxylic acids and band calcination device
    Patent number: 6881702
    Abstract: A catalyst suitable for the gas-phase oxidation of organic compounds to ?,?-unsaturated aldehydes and/or carboxylic acids and having an active phase comprising a multimetal oxide material is prepared by a process in which a particulate catalyst precursor which contains oxides and/or compounds of the elements other than oxygen which constitute the multimetal oxide material, which compounds can be converted into oxides, is prepared and said catalyst precursor is converted by calcination into a catalytically active form, wherein a stream of the particulate catalyst precursor is passed at substantially constant speed through at least one calcination zone at constant temperature for calcination.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: April 19, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Heiko Arnold, Signe Unverricht, Raimund Felder, Klaus Harth, Klaus Joachim Müller-Engel
  • Method for producing acrylic acid by the heterogeneously catalysed gas-phase oxidation of propane
    Patent number: 6867328
    Abstract: The invention relates to a method for producing acrylic acid by the heterogeneously catalysed gas-phase oxidation of propane on a multi-metal oxide mass, said mass containing the elements Mo, V, Te and/or Sb and having a specific X-ray diffractogram.
    Type: Grant
    Filed: July 16, 2001
    Date of Patent: March 15, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Frieder Borgmeier, Andreas Tenten, Hartmut Hibst, Klaus Joachim Müller-Engel, Signe Unverricht, Gerhard Cox
  • Clutch linings comprising fiber-reinforced ceramic materials
    Publication number: 20050040004
    Abstract: Friction pairing for clutch systems of two materials in which one of the materials is a fiber-reinforced ceramic or metallic material A which comprises reinforcing fibers comprising carbon or ceramic fibers or whiskers, and the material B acting against the material A in the friction pairing is selected from the group consisting of ceramic materials B11 and metallic materials B12, sintered metals B2, sintered oxidic ceramics B3, sintered nitridic ceramics B4, sintered carbidic ceramics B5 and organic sintered materials B6, processes for producing it and its use in clutch systems
    Type: Application
    Filed: August 17, 2004
    Publication date: February 24, 2005
    Applicant: SGL Carbon AG
    Inventors: Andreas Kienzle, Mario Krupka, Gustavo Cabello, Peter Winkelmann, Joachim Muller
  • Seat back for a vehicle seat comprising an integrated protective device
    Publication number: 20050035642
    Abstract: The invention concerns a seatback for a vehicle seat, having an integrated protective device. The protective device includes a device that generates a torque acting in a pivoting direction on an upper back part, a rear-end impact detector that is-in effective connection with the torque-generating device in such a way that the device is activated in the event of the rear-end impact and the pivoting motion is initiated, and an immobilization device for retention of the upper back part in the normal use position.
    Type: Application
    Filed: September 21, 2004
    Publication date: February 17, 2005
    Inventors: Ernst-Jurgen Hake, Hans-Joachim Muller, Gerhard Schmale, Lutz Strieder
  • Modified membranes
    Publication number: 20050029186
    Abstract: A porous polymeric membrane formed from a blend of a polymeric membrane forming material, such as polyvinylidene fluoride or polysulfone and a polymeric reactivity modifying agent adapted to modify the surface active properties of the porous polymeric membrane. The reactivity modifying agent is preferably a linear polymeric anhydride, such as poly(alkyl vinyl ether/maleic anhydride). The surface activity modifications include modification of the hydrophilicity/hydrophobicity balance of the membrane, or hydrolysis followed by reaction with a polyamine to form a crosslinked polyamide layer. Such modified membranes have use as reverse osmosis membranes.
    Type: Application
    Filed: July 29, 2004
    Publication date: February 10, 2005
    Inventor: Heinz-Joachim Muller
  • Modified membranes
    Publication number: 20050029185
    Abstract: A porous polymeric membrane formed from a blend of a polymeric membrane forming material, such as polyvinylidene fluoride or polysulfone and a polymeric reactivity modifying agent adapted to modify the surface active properties of the porous polymeric membrane. The reactivity modifying agent is preferably a linear polymeric anhydride, such as poly(alkyl vinyl ether/maleic anhydride). The surface activity modifications include modification of the hydrophilicity/hydrophobicity balance of the membrane, or hydrolysis followed by reaction with a polyamine to form a crosslinked polyamide layer. Such modified membranes have use as reverse osmosis membranes.
    Type: Application
    Filed: July 30, 2004
    Publication date: February 10, 2005
    Inventor: Heinz-Joachim Muller
  • Modified membranes
    Publication number: 20050032982
    Abstract: A porous polymeric membrane formed from a blend of a polymeric membrane forming material, such as polyvinylidene fluoride or polysulfone and a polymeric reactivity modifying agent adapted to modify the surface active properties of the porous polymeric membrane. The reactivity modifying agent is preferably a linear polymeric anhydride, such as poly(alkyl vinyl ether/maleic anhydride). The surface activity modifications include modification of the hydrophilicity/hydrophobicity balance of the membrane, or hydrolysis followed by reaction with a polyamine to form a crosslinked polyamide layer. Such modified membranes have use as reverse osmosis membranes.
    Type: Application
    Filed: July 29, 2004
    Publication date: February 10, 2005
    Inventor: Heinz-Joachim Muller
  • Treatment of mixtures that contain at least one compound with at least one ethylenically unsaturated group
    Patent number: 6849758
    Abstract: Mixtures containing monomers having at least one ethylenically unsaturated group are chemically and/or physically treated in the presence of the reaction products of alkylsuccinic anhydrides and stable N-oxyl radicals having a hydroxyl group.
    Type: Grant
    Filed: October 2, 2000
    Date of Patent: February 1, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Joachim Müller-Engel, Gerhard Nestler, Jürgen Schröder
  • Method for performing the purifying separation of crystals out their suspension in a mother liquor
    Publication number: 20040256319
    Abstract: A process for purifying removal of crystals from their suspension in mother liquor by means of a washing column having forced transport in which the process chamber is encased by a metal wall which, on its side facing away from the process chamber, is heated at least along the length of the pure melt zone.
    Type: Application
    Filed: May 6, 2004
    Publication date: December 23, 2004
    Inventors: Ulrich Hammon, Dieter Baumann, Jorg Heilek, Klaus Joachim Muller-Engel, Bernd Eck
  • Thermal treatment of the precursor material of a catalytically active material
    Publication number: 20040245681
    Abstract: In a process for the thermal treatment of the precusor material of a catalytically active material in a rotary tube furnace through which a gas stream flows, at least a proportion of the gas stream flowing through the rotary tube furnace is circulated, and the associated rotary tube furnace apparatus and tube-bundle reactors for the partial gas-phase oxidation of acrolein to acrylic acid are loaded with catalysts whose catalytically active material is obtainable by the process for the thermal treatment.
    Type: Application
    Filed: May 12, 2004
    Publication date: December 9, 2004
    Applicant: BASF Aktiengesellschaft
    Inventors: Martin Dieterle, Wolfgang Jurgen Popel, Silke Berndt, Raimund Felder, Signe Unverricht, Klaus Joachim Muller-Engel
  • Heterogeneously catalyzed partial gas phase oxidation of acrolein to acrylic acid
    Publication number: 20040249196
    Abstract: In a process for heterogeneously catalyzed partial gas phase oxidation of acrolein to acrylic acid, the starting reaction gas mixture is oxidized over a fixed catalyst bed 1 which consists of at least two fixed catalyst bed zones and is accommodated in two successive temperature zones A, B, and the transition from temperature zone A to temperature zone B does not coincide with a transition from one fixed catalyst bed zone to another fixed catalyst bed zone.
    Type: Application
    Filed: March 19, 2004
    Publication date: December 9, 2004
    Applicant: BASF Aktiengesellschaft
    Inventors: Martin Dieterle, Jochen Petzoldt, Heiko Arnold, Wilhelm Ruppel, Klaus Joachim Muller-Engel
  • Preparation of catalytically active multielement oxide materials which contain at least one of the elements Nb and W and the elements Mo, V and Cu
    Publication number: 20040249183
    Abstract: Catalytically active multielement oxide materials which contain at least one of the elements Nb and W and the elements Mo, V and Cu are prepared by a process in which an intimate dry blend containing ammonium ions is prepared and said dry blend is subjected to a thermal treatment in an atmosphere having a low molecular oxygen content at elevated temperatures, a portion of the ammonium ions contained in the intimate dry blend being decomposed with liberation of ammonia and the oxygen content of the thermal treatment atmosphere being increased in the course of the thermal treatment.
    Type: Application
    Filed: May 7, 2004
    Publication date: December 9, 2004
    Applicant: BASF Aktiengesellschaft
    Inventors: Martin Dieterle, Hartmut Hibst, Wolfgang Jurgen Popel, Jochen Petzoldt, Klaus Joachim Muller-Engel
  • Method for producing methacrylic acid from isobutane
    Publication number: 20040242925
    Abstract: A process prepares methacrylic acid from isobutane by subjecting isobutane to a partial catalytic dehydrogenation in the gas phase and charging an oxidation zone with the isobutenic product gas mixture after the components other than isobutane and isobutene have been substantially removed from the product gas mixture. The oxygen required to charge the oxidation zone is introduced accompanied by nitrogen.
    Type: Application
    Filed: December 29, 2003
    Publication date: December 2, 2004
    Inventors: Silki Berndt, Klaus Joachim Muller-Engel, Gotz-Peter Schindler, Frank Rosowski, Jochen Petzoldt
  • Heterogeneously catalyzed partial gas phase oxidation of propene to acrylic acid
    Publication number: 20040242926
    Abstract: In a process for heterogeneously catalyzed partial gas phase oxidation of propene to acrylic acid, the starting reaction gas mixture is oxidized at a propene loading of <160 l(STP)/l·h in a first reaction stage over a fixed catalyst bed 1 which is accommodated in two successive reaction zones A, B, and the acrolein-containing product gas mixture of the first reaction stage is subsequently oxidized in a second reaction stage over a fixed catalyst bed 2 which is a accommodated in two successive reaction zones C, D, the highest temperature of the reaction gas mixture within reaction zone A being above the highest temperature of the reaction gas mixture within reaction zone B and the highest temperature of the reaction gas mixture within reaction zone C being above the highest temperature of the reaction gas mixture within reaction zone D.
    Type: Application
    Filed: March 15, 2004
    Publication date: December 2, 2004
    Applicant: BASF Aktiengesellschaft
    Inventors: Martin Dieterle, Jochen Petzoldt, Klaus Joachim Muller-Engel, Heiko Arnold
  • Heterogeneously catalyzed partial gas phase oxidation of propene to acrolein
    Publication number: 20040225158
    Abstract: In a process for heterogeneously catalyzed partial gas phase oxidation of propene to acrolein, the starting reaction gas mixture is oxidized at a propene loading of <160 l (STP) of propene/l of fixed catalyst bed·h over a fixed catalyst bed which is accommodated in two successive reaction zones A, B, the highest temperature of the reaction gas mixture within reaction zone A being above the temperature of the reaction gas mixture within reaction zone B.
    Type: Application
    Filed: February 24, 2004
    Publication date: November 11, 2004
    Applicant: BASF Aktiengesellschaft
    Inventors: Martin Dieterle, Jochen Petzoldt, Klaus Joachim Muller-Engel
  • Heterogeneously catalyzed partial direct oxidation of propane and/or isobutane
    Publication number: 20040204607
    Abstract: A process for heterogeneously catalyzed partial direct oxidation of propane and/or isobutane, in which target product is removed in a workup stage from the product gas mixture obtained in the reaction stage, the remaining residual product gas mixture is divided into two portions of the same composition, one portion is recycled into the reaction stage and the other portion is discharged, and both the reaction stage and the workup stage are operated at elevated pressure.
    Type: Application
    Filed: April 2, 2004
    Publication date: October 14, 2004
    Applicant: BASF Aktiengesellschaft
    Inventors: Otto Machhammer, Sven Crone, Frieder Borgmeier, Klaus Joachim Muller-Engel, Christoph Adami, Armin Diefenbacher
  • Seat back for a vehicle seat comprising an integrated protective device
    Patent number: 6802562
    Abstract: The invention concerns a seatback for a vehicle seat, having an integrated protective device. The protective device includes a device that generates a torque acting in a pivoting direction on an upper back part, a rear-end impact detector that is in effective connection with the torque-generating device in such a way that the device is activated in the event of the rear-end impact and the pivoting motion is initiated, and an immobilization device for retention of the upper back part in the normal use position.
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: October 12, 2004
    Assignee: Johnson Controls Technology Company
    Inventors: Ernst-Jürgen Hake, Hans-Joachim Müller, Gerhard Schmale, Lutz Strieder
  • Preparation of at least one partial oxidation and/or ammoxidation product of a hydrocarbon
    Publication number: 20040199001
    Abstract: A process for preparing at least one partial oxidation and/or ammoxidation product of a hydrocarbon by partially dehydrogenating at least one saturated hydrocarbon H under heterogeneous catalysis and using the resulting product gas mixture A, which comprises the partially dehydrogenated hydrocarbon H, as such or in modified form for heterogeneously catalyzed partial oxidation and/or ammoxidation of the partially dehydrogenated hydrocarbon present in the product gas mixture A, said process including at least one mechanical separating operation inserted between the product gas mixture A and the heterogeneously catalyzed partial oxidation and/or ammoxidation.
    Type: Application
    Filed: March 31, 2004
    Publication date: October 7, 2004
    Applicant: BASF Akiengesellschaft
    Inventors: Gotz-Peter Schindler, Otto Machhammer, Klaus Joachim Muller-Engel, Claus Hechler, Jochen Petzoldt, Christoph Adami, Klaus Harth
  • Heterogeneously catalyzed partial gas phase oxidation of propene to acrolein
    Publication number: 20040192964
    Abstract: In a process for heterogeneously catalyzed partial gas phase oxidation of propene to acrolein, the starting reaction gas mixture is oxidized over a fixed catalyst bed which consists of at least two fixed catalyst bed zones and is accommodated in two successive temperature zones A, B, and the transition from temperature zone A to temperature zone B does not spatially coincide with a transition from one fixed catalyst bed zone to another fixed catalyst bed zone.
    Type: Application
    Filed: February 24, 2004
    Publication date: September 30, 2004
    Applicant: BASF Aktiengesellschaft
    Inventors: Jochen Petzoldt, Martin Dieterle, Heiko Arnold, Wilhelm Ruppel, Klaus Joachim Muller-Engel