Patents by Inventor Maximilian Zander

Maximilian Zander 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 for the production of modified pitches and the further application
    Patent number: 4943365
    Abstract: Contrary to known alkylation of pitches, it is disclosed that pitches are modified with particular aromatically substituted and activated C.sub.1 to C.sub.4 alkyl groups. The resulting modified pitches are easily polycondensed and give high coking residues and good mesophase formation. This is achieved on the one hand by dispensing with catalysts, which can be only incompletely removed from the pitch and, on the other hand, by employing reactive short chain alkyl aromatic compounds.
    Type: Grant
    Filed: March 9, 1987
    Date of Patent: July 24, 1990
    Assignee: Rutgerswerke AG
    Inventors: Winfried Boenigk, Maximilian Zander, Jurgen Stadelhofer
  • Process for the production of modified pitches and low boiling aromatics and olefins and use of said pitches
    Patent number: 4429172
    Abstract: A process for the preparation of modified pitches and low boiling aromatics and olefins is described. Waste plastic which consists of polymeric chains of olefins is subjected to a thermal treatment in the presence of high boiling aromatics. The modified pitches may be used for the production of carbon articles of high value.
    Type: Grant
    Filed: September 23, 1981
    Date of Patent: January 31, 1984
    Assignee: Rutgerswerke Aktiengesellschaft
    Inventors: Robert Zellerhoff, Maximilian Zander, Franz Kajetanczyk
  • Method of producing a highly reactive pitch fraction and its usage
    Patent number: 4414192
    Abstract: A method of producing a highly reactive pitch fraction is disclosed. Coal-tar pitch is extracted with hot chloroform and the pitch solution treated with solid iodine. The solid reaction products are separated and, in the presence of chloroform, decomposed with an aqueous ammonia solution. Following separation of the aqueous phase and removal by distillation of the chloroform, there remains a highly reactive pitch fraction which can be converted into high-anisotropic carbon at low temperatures and in short coking times.
    Type: Grant
    Filed: September 7, 1982
    Date of Patent: November 8, 1983
    Assignee: Rutgerswerke Aktiengesellschaft
    Inventors: Jurgen Palm, Herbert Glaser, Gerd Collin, Rolf Marrett, Maximilian Zander
  • Process for anisotropic carbon production
    Patent number: 4379133
    Abstract: An improved process for treating coal tar pitch to form anisotropic carbon comprising treating coal tar pitch with picric acid, recovering the resulting picrates, decomposing the picrates and heating the resulting aromatic hydrocarbons to obtain anisotropic carbon in less time.
    Type: Grant
    Filed: June 19, 1981
    Date of Patent: April 5, 1983
    Assignee: Rutgerswerke Aktiengesellschaft
    Inventors: Maximilian Zander, Gerd-Peter Blumer, Gerd Collin, Herbert Glaser, Rolf Marrett