Patents by Inventor Werner Heister

Werner Heister 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).

  • Carbon black granulate, method for producing carbon black granulate, and use thereof
    Patent number: 8394190
    Abstract: The invention relates to carbon black granulates having an APC value, measured at a conveying speed of 8 m/s and a solid load of 27 g/kg, less than or equal to 20 and a 25 [mu]m pressure filter value of less than 5 bar cm2/g. The carbon black granulate is produced by carbon black powder being pre-granulated in a first mixing granulator with addition of a granulation liquid with or without binders and being granulated to a finished state in a second mixing granulator without further addition of granulation liquid. The carbon black granulate can be used as a filler, reinforcing filler, UV stabilizer, conductive carbon black, pigment, or reducing agent.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: March 12, 2013
    Assignee: Evonik Carbon Black GmbH
    Inventors: Manfred Bertzick, Werner Heister, Wilfried Ostendorf, Matthias Katzer
  • CARBON BLACK GRANULATE, METHOD FOR PRODUCING CARBON BLACK GRANULATE, AND USE THEREOF
    Publication number: 20110244384
    Abstract: The invention relates to carbon black granulates having an APC value, measured at a conveying speed of 8 m/s and a solid load of 27 g/kg, less than or equal to 20 and a 25 [mu]m pressure filter value of less than 5 bar cm2/g. The carbon black granulate is produced by carbon black powder being pre-granulated in a first mixing granulator with addition of a granulation liquid with or without binders and being granulated to a finished state in a second mixing granulator without further addition of granulation liquid. The carbon black granulate can be used as a filler, reinforcing filler, UV stabilizer, conductive carbon black, pigment, or reducing agent.
    Type: Application
    Filed: November 10, 2009
    Publication date: October 6, 2011
    Applicant: Evonik Carbon Black GmbH
    Inventors: Manfred Bertzick, Werner Heister, Wilfried Ostendorf, Matthias Katzer