Patents by Inventor Dieter Messer

Dieter Messer 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
  • Spinel black pigments based on copper-chromium-manganese mixed oxides, a process for their preparation and their use
    Patent number: 5250112
    Abstract: Spinel black pigments are prepared by annealing oxides, hydroxides or carbonates of copper, chromium and manganese and grinding the product. The manganese-yielding component is Mn.sub.3 O.sub.4.
    Type: Grant
    Filed: November 20, 1992
    Date of Patent: October 5, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Wussow, Peter Kuske, Manfred Mansmann, Dieter Messer, Dieter Rade
  • Process for the preparation of pigments containing Cr.sub.2 O.sub.3
    Patent number: 5167708
    Abstract: A process for the preparation of chromate-free, Cr.sub.2 O.sub.3 -containing pigments having a spinel, haematite or corundum structure comprises blending pigment-forming raw materials corresponding to the Cr.sub.2 O.sub.3 -containing pigments with from 0.5 to 10% by weight of boric acid or phosphoric acid, calculated as B.sub.2 O.sub.3 or P.sub.2 O.sub.5, respectively, and then annealing the blend whereby the chromate-free, Cr.sub.2 O.sub.3 -containing pigment is obtained.
    Type: Grant
    Filed: March 23, 1992
    Date of Patent: December 1, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventors: Volker Wilhelm, Dieter Messer
  • Flocculation-resistant, mixed phase pigments having a rutile structure, process for their preparation, and their use
    Patent number: 4450012
    Abstract: Coated rutile mixed phase pigments comprise a mixed phase rutile pigment having a first coating of an oxide or hydrated oxide of titanium, zirconium, tin or a mixture thereof and a subsequent coating of an oxide or hydroxide of aluminum, and those pigments exhibit an improved tendency against flocculation in lacquers hardened with acid catalysts.
    Type: Grant
    Filed: September 8, 1982
    Date of Patent: May 22, 1984
    Assignee: Bayer Aktiengesellschaft
    Inventors: Dieter Messer, Volker Wilhelm, Robert Endres, Heinrich Heine