Patents Assigned to Holzemann Metallverarbeitung GmbH
  • Method for reprocessing scrap rubber
    Patent number: 5275948
    Abstract: A method for reprocessing scrap rubber, which produces reclaimed rubber from comminuted scrap rubber after devulcanization, in a biotechnology-type of process, by holding the comminuted scrap rubber in a bacterial suspension of chemolithotropic microorganisms with a supply of air, until sulphur as an elementary sulphur and/or sulfuric acid is separated from the remaining replasticized reclaimed rubber. This biotechnological reprocessing obtains reclaimed rubber and sulphur in a simplified manner which products can be reused.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: January 4, 1994
    Assignee: Holzemann Metallverarbeitung GmbH
    Inventors: Gunhild Straube, Eckhardt Straube, Willi Neumann, Helmut Ruckauf, Ralf Forkmann, Martin Loffler