Patents by Inventor Georg Michalczyk

Georg Michalczyk 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).

  • Process for making phenol-aldehyde resins
    Patent number: 4244906
    Abstract: Phenol-aldehyde resins are prepared by condensing phenol with formaldehyde and isobutyraldehyde in the presence of an alkali. The resulting resins are particularly suited for manufacturing products such as fiberboard and chipboard.
    Type: Grant
    Filed: May 14, 1979
    Date of Patent: January 13, 1981
    Assignee: Deutsche Texaco Aktiengesellschaft
    Inventors: Karl-Heinz Heinemann, Georg Michalczyk, Gerd Ripkens
  • Oligomerization of unsaturated hydrocarbons with a molybdenum catalyst
    Patent number: 4098839
    Abstract: A process for oligomerizing olefins having 2 to 5 carbon atoms in the molecule employing a novel sulfur containing molybdenum supported catalyst composed of from about 5.0 to 11.0 weight percent molybdenum, 3.0 to 7.0 weight percent sulfur and the remainder support. The catalyst may have present additional members such as platinum, palladium, rhodium, ruthenium, cobalt, nickel, rhenium and tungsten.
    Type: Grant
    Filed: October 28, 1975
    Date of Patent: July 4, 1978
    Assignee: Deutsche Texaco Aktiengesellschaft
    Inventors: Elmar Wilms, Georg Michalczyk
  • Oligomerization of unsaturated hydrocarbons with a molybdenum catalyst
    Patent number: 4081404
    Abstract: A process for oligomerizing unsaturated hydrocarbons having 2 to 5 carbon atoms in the molecule employing a novel molybdenum-containing carrier catalyst.
    Type: Grant
    Filed: December 17, 1976
    Date of Patent: March 28, 1978
    Assignee: Deutsche Texaco Aktiengesellschaft
    Inventors: Elmar Wilms, Georg Michalczyk
  • Catalyst for the production of gamma-butyrolactone and a method for preparing the catalyst
    Patent number: 4052335
    Abstract: A process for the liquid-phase hydrogenation of maleic anhydride to .gamma.-butyrolactone in the presence of a catalyst composed of cobalt oxide and palladium on a support of silica.
    Type: Grant
    Filed: May 17, 1976
    Date of Patent: October 4, 1977
    Assignee: Deutsche Texaco Aktiengesellschaft
    Inventors: Georg Michalczyk, Karl-Heinz Gluzek
  • Continuous process for producing gamma-butyrolactone by catalytic hydrogenation of maleic anhydride
    Patent number: 4025534
    Abstract: A continuous process for producing gamma-butyrolactone by hydrogenating maleic anhydride in two stages in the presence of a catalyst composed of cobalt oxide and palladium on a support of silica. The hydrogenation is performed at a hydrogen pressure of 100 to 125 atmospheres and at a temperature of 50.degree. to 100.degree. C. in the first stage and at 190.degree. to 220.degree. C. in the second stage.
    Type: Grant
    Filed: January 12, 1976
    Date of Patent: May 24, 1977
    Assignee: Deutsche Texaco Aktiengesellschaft
    Inventors: Lothar Sandhack, Werner Webers, Georg Michalczyk, Karl-Heinz Gluzek
  • Process for converting maleic anhydride to .gamma.-butyrolactone
    Patent number: 4006165
    Abstract: A process for converting maleic anhydride to .gamma.-butyrolactone by treating the anhydride with hydrogen in the presence of co-catalysts comprising palladium and nickel-copper chromite at elevated pressures and temperatures.
    Type: Grant
    Filed: August 4, 1975
    Date of Patent: February 1, 1977
    Assignee: Deutsche Texaco Aktiengesellschaft
    Inventors: Georg Michalczyk, Karl-Heinz Gluzek
  • Process for converting .gamma.-butyrolactone into tetrahydrofuran
    Patent number: 4006104
    Abstract: A process for converting .gamma.-butyrolactone to tetrahydrofuran by treating the lactone with hydrogen in the presence of a cobalt-copper chromite catalyst at elevated pressures and temperatures.
    Type: Grant
    Filed: September 15, 1975
    Date of Patent: February 1, 1977
    Assignee: Deutsche Texaco Aktiengesellschaft
    Inventors: Georg Michalczyk, Karl-Heinz Gluzek
  • Process for the production of .gamma.-butyrolactone
    Patent number: 3994928
    Abstract: A process for the liquid-phase hydrogenation of maleic anhydride to .gamma.-butyrolactone in the presence of a catalyst composed of cobalt oxide and palladium on a support of silica.
    Type: Grant
    Filed: June 4, 1975
    Date of Patent: November 30, 1976
    Assignee: Deutsche Texaco Aktiengesellschaft
    Inventors: Georg Michalczyk, Karl-Heinz Gluzek
  • Process for converting .gamma.-butyrolactone into tetrahydrofuran
    Patent number: 3969371
    Abstract: A process for converting .gamma.-butyrolactone to tetrahydrofuran by treating the lactone with hydrogen in the presence of a cobalt-copper chromite catalyst at elevated pressures and temperatures.
    Type: Grant
    Filed: July 15, 1974
    Date of Patent: July 13, 1976
    Assignee: Deutsche Texaco Aktiengesellschaft
    Inventors: Georg Michalczyk, Karl-Heinz Gluzek
  • Catalysts for converting maleic anhydride to alpha-butyrolactone
    Patent number: 3948805
    Abstract: A process for converting maleic anhydride to .gamma.-butyrolactone by treating the anhydride with hydrogen in the presence of co-catalysts comprising palladium and nickel-copper chromite at elevated pressures and temperatures.
    Type: Grant
    Filed: July 15, 1974
    Date of Patent: April 6, 1976
    Assignee: Deutsche Texaco Aktiengesellschaft
    Inventors: Georg Michalczyk, Karl-Heinz Gluzek