Patents by Inventor Manfred Schulze, deceased

Manfred Schulze, deceased 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 producing alkylhalogenosilanes
    Patent number: 5756794
    Abstract: The process for producing alkylhalogenosilanes, which comprises reacting a physical mixture of silicon, a selenium or tellurium promoter and a copper catalyst with an alkyl halide.
    Type: Grant
    Filed: May 28, 1997
    Date of Patent: May 26, 1998
    Assignee: Bayer Aktiengesellschaft
    Inventors: Matthias-Sven Steiner, Bruno Degen, Gebhard Wagner, Elke Licht, Manfred Schulze, deceased
  • Metallurgical silicon containing phosphorus for the preparation of organohalogenosilanes
    Patent number: 5714131
    Abstract: A metallurgical silicon is disclosed which contains substantially from 30 to 180 ppm of phosphorus comprised of a crystalline phase of primary silicon having a dissolved phosphorus content between 30 and 150 parts per million and intermetal phases whose global ratio is between 0.5 and 2%, wherein among the intermediary phases, the phase Si.sub.2 Al.sub.2 Ca does not exceed 0.3% of the total of the metallurgical silicon mass. The metallurgical silcon is used for the synthesis of alkyl or aryl halogenosilanes useful for the preparation of silicones.
    Type: Grant
    Filed: December 15, 1995
    Date of Patent: February 3, 1998
    Assignees: Pechiney Electrometallurgie, Bayer AG
    Inventors: Thomas Margaria, Bruno Degen, Elke Licht, Manfred Schulze, deceased, Gebhard Wagner