Patents by Inventor Burkhardt Jahn

Burkhardt Jahn 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 controlling the scorch time (ST) in the vulcanization of silicic acid-filled rubber blends
    Patent number: 8674009
    Abstract: A process for controlling the scorch time (ST) in the vulcanization of vulcanizable blends containing a composition to be vulcanized, hydrophobized silicic acid and zinc oxide particles wherein the scorch time control is effected by the size and number of zinc oxide particles (amount). The process of the invention is also suitable for preparing vulcanized rubber articles.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: March 18, 2014
    Assignee: Grillo Zinkoxid GmbH
    Inventors: Klaus Diekstall, Burkhardt Jahn, Peter Schubert, Sven Hessdoefer
  • Process for controlling the scorch time (ST) in the vulcanization of silicic acid-filled rubber blends
    Publication number: 20080153989
    Abstract: A process for controlling the scorch time (ST) in the vulcanization of vulcanizable blends containing a composition to be vulcanized, hydrophobized silicic acid and zinc oxide particles wherein the scorch time control is effected by the size and number of zinc oxide particles (amount). The process of the invention is also suitable for preparing vulcanized rubber articles.
    Type: Application
    Filed: November 30, 2007
    Publication date: June 26, 2008
    Inventors: Klaus Diekstall, Burkhardt Jahn, Peter Schubert, Sven Hessdoefer
  • Composition with zinc hydroxide, mixture containing the composition and article made therefrom
    Publication number: 20070265374
    Abstract: A composition is disclosed which contains at least one diene rubber or at least one copolymer of a diene rubber and/or mixtures and zinc hydroxide and/or basic zinc carbonate and/or zinc phosphate. The composition is suitable as a masterbatch and can be employed for the preparation of vulcanizable mixtures with a lower zinc load.
    Type: Application
    Filed: March 23, 2007
    Publication date: November 15, 2007
    Inventors: Burkhardt Jahn, Sven Hessdoerfer, Nikolaus Rennar