Patents by Inventor Joachim Froehlich

Joachim Froehlich 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).

  • Rubber mixture
    Patent number: 8124682
    Abstract: The invention relates to a rubber mixture comprising at least one rubber and at least one low-PAH-content carbon black, where the low-PAH-content carbon black has (A) an iodine number of from 17 to 75 mg/g, (B) an STSA surface area of from 17 to 64 m2/g, (C) an iodine number:STSA surface area ratio >1.06 mg/m2, (D) an OAN number of from 60 to 160 ml/100 g, (E) a COAN number of from 40 to 110 ml/100 g, (F) a mode greater than 100 nm and (G) benzo(a)pyrene content <2 ppm. The rubber mixture can be used to produce technical rubber items and tyres.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: February 28, 2012
    Assignee: Evonik Carbon Black GmbH
    Inventors: Joachim Froehlich, Paul Dieter Messer, Michael Warskulat, Luis Molinari, Vanni Vitali
  • RUBBER MIXTURE
    Publication number: 20110124792
    Abstract: The invention relates to a rubber mixture comprising at least one rubber and at least one low-PAH-content carbon black, where the low-PAH-content carbon black has (A) an iodine number of from 17 to 75 mg/g, (B) an STSA surface area of from 17 to 64 m2/g, (C) an iodine number:STSA surface area ratio >1.06 mg/m2, (D) an OAN number of from 60 to 160 ml/100 g, (E) a COAN number of from 40 to 110 ml/100 g, (F) a mode greater than 100 nm and (G) benzo(a)pyrene content <2 ppm. The rubber mixture can be used to produce technical rubber items and tyres.
    Type: Application
    Filed: November 19, 2010
    Publication date: May 26, 2011
    Applicant: Evonik Degussa GmbH
    Inventors: Joachim FRÖEHLICH, Paul Dieter MESSER, Michael WARSKULAT, Luis MOLINARI, Vanni VITALI
  • Rubber compound containing nanoscale, magnetic fillers
    Patent number: 7837892
    Abstract: Rubber compound containing at least one nanoscale, magnetic filler and at least one non-magnetic filler. Vulcanizable mixture containing the rubber compound and at least one crosslinking agent and/or vulcanization accelerator. Molding obtainable from the vulcanizable mixture by heat treatment or action of an electrical, magnetic or electromagnetic alternating field.
    Type: Grant
    Filed: August 20, 2005
    Date of Patent: November 23, 2010
    Assignee: Evonik Degussa GmbH
    Inventors: Markus Pridoehl, Guido Zimmermann, Joachim Froehlich, Achim Gruber, Gregor Grun, Thomas Ruehle, Dirk W. Schubert
  • Rubber Compound Containing Nanoscale, Magnetic Fillers
    Publication number: 20080135799
    Abstract: Rubber compound containing at least one nanoscale, magnetic filler and at least one non-magnetic filler. Vulcanisable mixture containing the rubber compound and at least one crosslinking agent and/or vulcanisation accelerator. Moulding obtainable from the vulcanisable mixture by heat treatment or action of an electrical, magnetic or electromagnetic alternating field.
    Type: Application
    Filed: August 20, 2005
    Publication date: June 12, 2008
    Inventors: Markus Pridoehl, Guido Zimmermann, Joachim Froehlich, Achim Gruber, Gregor Grun, Thomas Ruehle, Dirk W. Schubert