Patents Assigned to Peroxid-Chemie GmbH & Co. KG
  • Patent number: 7214812
    Abstract: The invention relates to a stabilized peroxydicarbonate preparation and its use in the polymerization or copolymerization of ethylenically unsaturated compounds.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: May 8, 2007
    Assignee: Peroxid-Chemie GmbH & Co. KG
    Inventors: Eberhard Hägel, Martin Kunz, Werner Zeiss
  • Patent number: 7018516
    Abstract: A bipolar multi-purpose electrolytic cell for high current loads has a frame, two electrode edge plates with metal electrode sheet, and power supply and of bipolar plates. Each includes a plastic electrode base body with electrode rear spaces and/or with coolings spaces that are incorporated on one or both sides: incorporated supply and discharge lines for the electrolyte solutions and the cooling medium, metal electrode sheets which are applied to both sides of the base body and are solid and/or perforated in the electrochemically active area: electrolyte sealing frames, which rest on the solid metal electrode sheets and which are made of flexible plastic, and: ion exchanger membranes, which rest on the perforated metal electrode sheets and/or on the electrolyte sheets and/or on the electrolyte sealing frames and which are provided for separating the electrode spaces.
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: March 28, 2006
    Assignee: Peroxid-Chemie GmbH & Co. KG
    Inventors: Michael Gnann, Wolfgang Thiele, Gerd Heinze
  • Patent number: 6511578
    Abstract: The invention relates to a method of bleaching and/or delignifying cellulose, in which (a) a sodium hydroxide solution and a peroxydisulphate solution are first of all produced by electrolysis of a sulphate, (b) the peroxydisulphate solution is converted by hydrolysis into a Caro's acid/caroate solution, (c) said Caro's acid/caroate solution is left to cool and (d) used immediately as a bleaching solution for bleaching and/or delignifying cellulose, the Caro's acid/caroate solution becoming neutralised upon introduction into the bleaching solution.
    Type: Grant
    Filed: September 21, 1999
    Date of Patent: January 28, 2003
    Assignee: Peroxid-Chemie GmbH & Co. KG
    Inventors: Maximilian Dorn, Michael Gnann, Sven Gutewort, Werner Sebb
  • Patent number: 6395924
    Abstract: The new compound t-butylperoxycyclododecyl oxalate is described, as well as a method of preparing it and use of the compound as a polymerization initiator.
    Type: Grant
    Filed: August 30, 1999
    Date of Patent: May 28, 2002
    Assignee: Peroxid-Chemie GmbH & Co KG
    Inventors: Eberhard Hägel, Werner Zeiss, Maximilian Dorn
  • Patent number: 6316562
    Abstract: This invention relates to new metallocenes with mixed substituents and enhanced activity, methods of producing metallocene compounds, and the use of metallocenamide halides for generating an active catalyst system for (co)polymerization reactions.
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: November 13, 2001
    Assignee: Peroxid-Chemie GmbH & Co. KG
    Inventors: Florian Munck, Werner Zeiss, Christoph Hartmann, Alexander Vogel, Andreas Detig