Patents by Inventor Bernd Bechtloff

Bernd Bechtloff 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 the preparation of nanoparticulate zinc oxide
    Patent number: 8865115
    Abstract: The present invention relates to a process for the preparation of nanoparticulate zinc oxide in the form of aqueous suspensions or in the form of pulverulent solid. Furthermore, the invention relates to the use of zinc oxide particles and suspensions prepared in this way in cosmetic sunscreen preparations, as stabilizer in plastics, in paints, in coatings and as antimicrobial active ingredient.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: October 21, 2014
    Assignee: BASF SE Ludwigshafen
    Inventors: Bernd Bechtloff, Lars Vicum, Hartwig Voβ, Robert Wengeler, Andrey Karpov, Jing Dreher, Valerie Andre
  • PROCESS FOR PREPARING MULTIMETAL CYANIDE COMPOUNDS
    Publication number: 20120129685
    Abstract: The invention relates to a process for preparing multimetal cyanide compounds by reacting the aqueous solution of a metal salt a) with the aqueous solution of a hexacyanometalate compound b), wherein the mixture of the solutions a) and b) flows over the surface of a rotating body A to an outer region of the surface of the rotating body A and is flung off from there.
    Type: Application
    Filed: August 11, 2010
    Publication date: May 24, 2012
    Applicant: BASF SE
    Inventors: Jochen Mezger, Burkhard Walther, Helmut Mack, Simone Klapdohr, Zhizhong Cai, Silke Flakus, Tobias Austermann, Bernhard Hoffner, Wolfgang Rohde, Bernd Bechtloff, Michael Triller, Sirus Zarbakhsh
  • PROCESS FOR THE PREPARATION OF NANOPARTICULATE ZINC OXIDE
    Publication number: 20110152433
    Abstract: The present invention relates to a process for the preparation of nanoparticulate zinc oxide in the form of aqueous suspensions or in the form of pulverulent solid. Furthermore, the invention relates to the use of zinc oxide particles and suspensions prepared in this way in cosmetic sunscreen preparations, as stabilizer in plastics, in paints, in coatings and as antimicrobial active ingredient.
    Type: Application
    Filed: July 30, 2009
    Publication date: June 23, 2011
    Applicant: BASF SE
    Inventors: Bernd Bechtloff, Lars Vicum, Hartwig Voss, Robert Wengeler, Andrey Karpov, Jing Dreher, Valerie Andre
  • METHOD FOR PRODUCING SURFACE-MODIFIED NANOPARTICULATE METAL OXIDES, METAL HYDROXIDES, AND/OR METAL OXIDE HYDROXIDES
    Publication number: 20100119829
    Abstract: The present invention relates to methods of producing surface-modified nanoparticulate particles at least of one metal oxide, metal hydroxide and/or metal oxide hydroxide, and aqueous suspensions of these particles. Furthermore, the invention relates to the surface-modified nanoparticulate particles, obtainable by these methods, at least of one metal oxide, metal hydroxide and/or metal oxide hydroxide and aqueous suspensions of these particles, and to their use for cosmetic sunscreen preparations, as stabilizer in plastics and as antimicrobial active ingredient.
    Type: Application
    Filed: March 18, 2008
    Publication date: May 13, 2010
    Applicant: BASF SE
    Inventors: Andrey Karpov, Hartmut Hibst, Jing Hu, Bernd Bechtloff, Hartwig Voss, Kerstin Schierle-Arndt, Valerie Andre, Jens Rieger
  • METHOD OF PRODUCING SURFACE-MODIFIED NANOPARTICULATE METAL OXIDES, METAL HYDROXIDES AND/OR METAL OXYHYDROXIDES
    Publication number: 20100003203
    Abstract: The present invention relates to methods of producing surface-modified nanoparticulate particles at least of one metal oxide, metal hydroxide and/or metal oxide hydroxide, and aqueous suspensions of these particles. The invention further relates to the surface-modified nanoparticulate particles, obtainable by these methods, at least of one metal oxide, metal hydroxide and/or metal oxide hydroxide and aqueous suspensions of these particles, and to their use for cosmetic sunscreen preparations, as stabilizer in plastics and as antimicrobial active ingredient.
    Type: Application
    Filed: October 10, 2007
    Publication date: January 7, 2010
    Applicant: BASF SE
    Inventors: Andrey Karpov, Hartmut Hibst, Jutta Kissel, Bernd Bechtloff, Hartwig Voss, Kerstin Schierle-Arndt, Valerie Andre
  • Method for the Continuous Production of Dmc Catalysts
    Publication number: 20080071117
    Abstract: The invention provides a continuous process for preparing DMC catalysts, which comprises continuously feeding the solutions of a metal salt and of a hexacyanometallate compound and, if appropriate, organic ligands and/or organic additives into a continuous reactor, and continuously withdrawing the resulting suspension of the DMC compound from the reactor.
    Type: Application
    Filed: September 28, 2005
    Publication date: March 20, 2008
    Applicant: BASF Aktiengesellschaft
    Inventors: Edward Bohres, Michael Triller, Bernd Bechtloff, Raimund Ruppel