Patents by Inventor Manfred Kroll

Manfred Kroll 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).

  • Method for the stabilization of polyvinylpyrrolidones
    Patent number: 8524827
    Abstract: Method for stabilizing polyvinylpyrrolidones, which comprises treating the polyvinylpyrrolidones with sulfur dioxide, sulfurous acid or alkali metal sulfites and then with free-radical scavenger, and converting the solutions treated in this way into the powdered polyvinylpyrrolidones by drying.
    Type: Grant
    Filed: February 8, 2006
    Date of Patent: September 3, 2013
    Assignee: BASF SE
    Inventors: Karl Kolter, Ivette Garcia Castro, Olga Pinneker, Ralf Widmaier, Karl-Hermann Strube, Bernhard Fussnegger, Manfred Kroll, Frank Höfer, Hermann Ascherl, Peter Schmidt
  • Use of Peroxide Decomposers Method For the Treatment of a Material Other Than the Human Body
    Publication number: 20080193397
    Abstract: The invention relates to the use of compounds with certain sulfur and optionally nitrogen atom-containing structures as peroxide decomposers in cosmetic and pharmaceutical agents for treating the skin. The invention also relates to cosmetic and pharmaceutical agents comprising compounds having such structures.
    Type: Application
    Filed: May 12, 2006
    Publication date: August 14, 2008
    Applicant: BASF Aktiengesellscaft
    Inventors: Manfred Kroll, Gerhard Wagenblast, Arne Ptock, Sylke Haremza, Axel Jentzsch
  • Method For the Stabilization of Polyvinylpyrrolidones
    Publication number: 20080139724
    Abstract: Method for stabilizing polyvinylpyrrolidones, which comprises treating the polyvinylpyrrolidones with sulfur dioxide, sulfurous acid or alkali metal sulfites and then with free-radical scavenger, and converting the solutions treated in this way into the powdered polyvinylpyrrolidones by drying.
    Type: Application
    Filed: February 8, 2006
    Publication date: June 12, 2008
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Karl Kolter, Ivette Garcia Castro, Olga Pinneker, Ralf Widmaier, Karl-Hermann Strube, Bernhard Fussnegger, Manfred Kroll, Frank Hofer, Hermann Ascherl, Peter Schmidt