Patents by Inventor Horst Robeck

Horst Robeck 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).

  • Azeotrope-like mixture of 2-propanol and 1H-perfluorohexane
    Patent number: 5266231
    Abstract: The invention relates to an azeotrope-like mixture which contains about 8-12% by weight of 2-propanol and about 88-92% by weight of 1H-perfluorohexane and to a process for cleaning electronic components, in particular soldered circuit boards or printed circuits, with the aid of this mixture.
    Type: Grant
    Filed: June 18, 1992
    Date of Patent: November 30, 1993
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Horst Robeck, Hans-Matthias Deger
  • Azeotrope-like mixture of methanol and 1H-perfluorohexane
    Patent number: 5266232
    Abstract: The invention relates to an azeotrope-like mixture which contains about 5-9% by weight of methanol and about 91-95% by weight of 1 H-perfluorohexane and to a process for cleaning electronic components, in particular soldered circuit boards or printed circuits, with the aid of this mixture.
    Type: Grant
    Filed: June 18, 1992
    Date of Patent: November 30, 1993
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Horst Robeck, Hans-Matthias Deger
  • Novel azeotropic or azeotrope-like mixture of 2,2,2-trifluoroethyl 1,1,2,2-tetrafluoroethyl ether and ethanol, and its use
    Patent number: 5087383
    Abstract: The invention relates to a novel azeotropic or azeotrope-like mixture which essentially comprises about 90-97% by mass of 2,2,2-trifluoroethyl 1,1,2,2-tetrafluoroethyl ether and about 3-10% by mass of ethanol and also to a process for cleaning electrical or electronic components, in particular soldered circuit boards or printed circuits, but also other solid surfaces, with the aid of said mixture. Soldering fluxes, in particular, can be removed from circuit boards with the aid of said mixture.
    Type: Grant
    Filed: April 24, 1991
    Date of Patent: February 11, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Horst Robeck, Hans-Matthias Deger
  • Novel azeotrope-type solvent mixture of methanol and 1,4-dihydroperfluorobutane and process for cleaning electronic components with the aid of the same
    Patent number: 5073291
    Abstract: The invention relates to an azeotrope-type mixture which contains about 3-5% by weight of methanol and about 95-97% by weight of 1,4-dihydroperfluorobutane, and also to a process for cleaning electronic components, in particular soldered conductor boards or printed circuits, with the aid of said mixture.
    Type: Grant
    Filed: January 23, 1991
    Date of Patent: December 17, 1991
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Horst Robeck, Hans-Matthias Deger, Klaus Raab