Patents by Inventor Reinhold Tussing

Reinhold Tussing 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).

  • Method and apparatus for the manufacture of N,N'-bis-(aroyl)hydrazines
    Patent number: 4550204
    Abstract: The invention relates to a method and apparatus for the manufacture of N,N'-bis-(aroyl)hydrazines from hydrazine and arylcarboxylic acid alkyl esters in the presence of catalysts. According to the invention, the reaction ingredients are reacted in a substantially stoichiometric mass ratio in an inert medium of low volatility which is liquid to wax-like under reaction conditions, in a suitable reactor equipped with a centrifugal disc and connected to a cycling, separating and draining-off system and a dispersion head to form a paste-like product. The paste-like compound can be used as a metal deactivator in polyolefin which is in direct contact with copper, for instance, in cable and wire insulation.
    Type: Grant
    Filed: March 10, 1983
    Date of Patent: October 29, 1985
    Assignee: Siemens Aktiengesellschaft
    Inventors: Wolfgang Von Gentzkow, Manfred Schmiedel, Reinhold Tussing
  • Dyeing and marking agent
    Patent number: 4336027
    Abstract: As an additive in dyeing and marking agents, 0.5 to 20% by weight of an alkali alcoholate, particularly the sodium or potassium salt of tertiary butanol, is used. The dyeing and marking agents have high contrast (PSC-value greater than 0.8) and have no corrosive action. The agents are particularly suitable as the recording liquid in printers and ink jet recorders.
    Type: Grant
    Filed: December 8, 1980
    Date of Patent: June 22, 1982
    Assignee: Siemens Aktiengesellschaft
    Inventor: Reinhold Tussing