Patents by Inventor Rudolf Kron

Rudolf Kron 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).

  • Heat transfer fluid and process for its preparation
    Patent number: 5384059
    Abstract: Mixtures consisting essentially of cyclohexylbiphenyls, dicyclohexylbenzenes, phenylbicyclohexyls and tercyclohexyls are outstandingly suitable as heat transfer media. The mixtures can be prepared from biphenyl and cyclohexanol in the presence of bleaching earths and subsequent hydrogenation.
    Type: Grant
    Filed: August 20, 1993
    Date of Patent: January 24, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventors: Alfons Klein, Rudolf Kron, Helmut Fiege, Klaus-Christian Paetz
  • Dielectric liquids
    Patent number: 4912596
    Abstract: The invention relates to the use of certain aromatic compounds of the formula ##STR1## in which R', R" and X have the meaning given in the description,as dielectric liquids for high-energy voltage-storage capacitors, and to dielectric liquids containing these aromatic compounds, for these high-power capacitors.
    Type: Grant
    Filed: March 14, 1989
    Date of Patent: March 27, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rudolf Kron, Alfons Klein, Helmut Fiege
  • Impregnating agents and the use thereof
    Patent number: 4772428
    Abstract: Liquid compositions, having dielectric properties, which contain mixtures of ditolylether isomers and alkylbenzenes.
    Type: Grant
    Filed: May 4, 1987
    Date of Patent: September 20, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rudolf Kron, Alfons Klein, Karlfried Wedemeyer
  • Impregnating agent and its use
    Patent number: 4294715
    Abstract: A dielectric composition comprising a mixture of monoisopropylated diphenyls and polyisopropylated diphenyls, especially a mixture of 30 to 60 parts by weight of monoisopropylated diphenyls and 70 to 40 parts by weight of polyisopropylated diphenyls, the polyisopropylated diphenyls preferably being made up in turn of 60 to 85 parts by weight of diisopropylated diphenyls, 10 to 35 parts by weight of triisopropylated diphenyls and 0.5 to 5 parts by weight of tetraisopropylated diphenyls, these latter amounts being based upon the total amount of the polyisopropylated diphenyls.
    Type: Grant
    Filed: October 11, 1979
    Date of Patent: October 13, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Alfons Klein, Rudolf Kron, Karlfried Wedemeyer, Ernst Knust, Lothar Havenith
  • Chloro-diphenyl
    Patent number: 4203145
    Abstract: An improvement in an electrical device containing a functional liquid wherein the functional liquid is a compound of the formula ##STR1## and the use of such compounds as dielectrics.
    Type: Grant
    Filed: January 6, 1978
    Date of Patent: May 13, 1980
    Assignee: Bayer Aktiengesellschaft
    Inventors: Alfons Klein, Ernst Knust, Rudolf Kron, Karlfried Wedemeyer