Patents by Inventor Joachim Becker

Joachim Becker 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: 4760185
    Abstract: m-Phenylenediamines are alkylated in the orthoposition by heating them with an Al/Zn alloy and aluminium chloride, and reacting them with lower alkenes at elevated pressures and temperatures when the evolution of hydrogen is complete.
    Type: Grant
    Filed: May 6, 1986
    Date of Patent: July 26, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventor: Hans-Joachim Becker
  • Patent number: 4668444
    Abstract: Substantially isotropic spherical fuel and absorber elements for high temperature reactors are produced by molding corresponding fuel particles and graphite molding compositions. There is used as graphite molding powder a mixture of graphitized granules of coke and a hardenable resin binder. There are first produced in steel dies at 80.degree. to 120.degree. C. half shells and a nucleus with a pressed density of 1.0 to 1.4 g/cm.sup.3 followed by molding in a further steel die to the final format.
    Type: Grant
    Filed: September 4, 1985
    Date of Patent: May 26, 1987
    Assignee: Hobeg mbH
    Inventors: Hans-Joachim Becker, Werner Heit, Hans Huschka, Wilhelm Rind
  • Patent number: 4666639
    Abstract: To produce spherical fuel or absorber elements for high temperature reactors a mixture of coated nuclear fuel or absorber particles and graphite molding composition is molded into spheres, carbonized in a furnace having gas flushing and calcined in a vacuum. There are attained high throughputs without addition of transportation aides by employing as resin binders a thermosetting synthetic resin, hardening the resin at 110.degree. to 170.degree. C. and subsequently allowing the spheres to roll for 1 to 10 hours through an oven which is inclined around 2.degree. to 12.degree. to the horizontal. Thereby the oven must exhibit an increasing and decreasing temperature profile, the flushing gas introduced from both sides and be removed in a temperature zone of 400.degree. to 500.degree. C.
    Type: Grant
    Filed: September 4, 1985
    Date of Patent: May 19, 1987
    Assignee: Hobeg mbH
    Inventors: Hans-Joachim Becker, Werner Heit, Wilhelm Rind, Wolfgang Warzawa
  • Patent number: 4287365
    Abstract: A particularly active Raney nickel catalyst is provided with a high-iron content, containing about 10 to 30% by weight of iron relative to the sum of the active metals nickel and iron. The catalyst can be prepared by treating aluminum/nickel/iron alloys which contain (1) 21 to 49.5% by weight of nickel, (2) 3 to 16.5% by weight of iron and (3) aluminum to make up to 100%, with an inorganic or organic base and separating the catalyst from the reaction mixture. According to the invention, said particularly active Raney nickel catalysts are used for the hydrogenation of organic compounds.
    Type: Grant
    Filed: June 11, 1979
    Date of Patent: September 1, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Joachim Becker, Walter Schmidt
  • Patent number: 4163752
    Abstract: A process has been invented for the preparation of aminonaphthalenesulphonic acids by the catalytic hydrogenation of salts of nitronaphthalenesulphonic acids with hydrogen in the presence of Raney nickel catalysts at elevated temperature and pressure, said catalysts comprising a combination of fresh Raney nickel catalyst and Raney nickel catalyst which has already been used in prior hydrogenation or hydrogenations.
    Type: Grant
    Filed: January 11, 1978
    Date of Patent: August 7, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Otto Barth, Hans-Joachim Becker, Horst Behre, Reinhard Kaiser, Guido Steffan, Jurgen Zander
  • Patent number: 4134941
    Abstract: There are provided pressed spherical fuel elements for high temperature reactors made of a graphite matrix with separate embedded coated fuel and fertile material particles wherein the fuel elements comprise 3 concentric layers including a graphite nucleus or core (1) which only contains fertile material particles (4), this graphite nucleus (1) is surrounded by a graphite zone (2) which only contains the fuel particles (5) and this is encased in a shell (3) of pure graphite, the same graphite material being present in all three layers.
    Type: Grant
    Filed: December 21, 1976
    Date of Patent: January 16, 1979
    Assignee: HOBEG Hochtemperaturreaktor-Brennelement GmbH
    Inventors: Milan Hrovat, Hans-Joachim Becker, Hans Huschka
  • Patent number: 4022663
    Abstract: There are provided pressed spherical fuel elements for high temperature reactors made of a graphite matrix with separate embedded coated fuel and fertile material particles wherein the fuel elements comprise 3 concentric layers including a graphite nucleus or core (1) which only contains fertile material particles (4), this graphite nucleus (1) is surrounded by a graphite zone (2) which only contains the fuel particles (5) and this is encased in a shell (3) of pure graphite, the same graphite material being present in all three layers.
    Type: Grant
    Filed: December 11, 1974
    Date of Patent: May 10, 1977
    Assignee: Hochtemperaturreaktor-Brennelement GmbH
    Inventors: Milan Hrovat, Hans-Joachim Becker, Hans Huschka