Patents by Inventor Sonja Viereck

Sonja Viereck 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 production of a minisuspoemulsion or suspension of sub-micron core/shell particles
    Patent number: 9079149
    Abstract: The proposal is made for a process for the preparation of a minisuspoemulsion of submicron core/shell particles, wherein the starting material is a suspoemulsion of a first disperse liquid phase I in a second continuous liquid phase II, which comprises, in the first disperse liquid phase I, submicron particles of a solid C forming the core, and a precursor substance PS for the shell dissolved in molecularly disperse form and, if appropriate, a reactant R, and wherein the submicron core/shell particles CS are prepared in the first disperse liquid phase I of the suspoemulsion by chemical or physical conversion of the precursor substance PS for the shell.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: July 14, 2015
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Danner, Bernd Sachweh, Sonja Viereck
  • METHOD FOR PRODUCTION OF A MINISUSPOEMULSION OR SUSPENSION OF SUB-MICRON CORE/SHELL PARTICLES
    Publication number: 20100080898
    Abstract: The proposal is made for a process for the preparation of a minisuspoemulsion of submicron core/shell particles, wherein the starting material is a suspoemulsion of a first disperse liquid phase I in a second continuous liquid phase II, which comprises, in the first disperse liquid phase I, submicron particles of a solid C forming the core, and a precursor substance PS for the shell dissolved in molecularly disperse form and, if appropriate, a reactant R, and wherein the submicron core/shell particles CS are prepared in the first disperse liquid phase I of the suspoemulsion by chemical or physical conversion of the precursor substance PS for the shell.
    Type: Application
    Filed: November 13, 2007
    Publication date: April 1, 2010
    Applicant: BASF SE
    Inventors: Thomas Danner, Bernd Sachweh, Sonja Viereck
  • Method of preparing a finely divided emulsion from a crude emulsion
    Patent number: 7452470
    Abstract: A method of preparing a finely divided emulsion from a crude emulsion is proposed where the crude emulsion is forced through a porous membrane, wherein the porous membrane is constructed from two or more superimposed layers which differ in pore diameter.
    Type: Grant
    Filed: November 17, 2005
    Date of Patent: November 18, 2008
    Assignee: BASF SE
    Inventors: Thomas Danner, Hartwig Voβ, Andreas Bauder, Sonja Viereck
  • Method For Producing An Aqueous Polymer Dispersion
    Publication number: 20080200605
    Abstract: The process for preparing an aqueous polymer dispersion using microporous membranes.
    Type: Application
    Filed: June 20, 2006
    Publication date: August 21, 2008
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Jacob Wildeson, Thomas Danner, Sonja Viereck, Andreas Bauder
  • Method of preparing a finely divided emulsion from a crude emulsion
    Publication number: 20060102553
    Abstract: A method of preparing a finely divided emulsion from a crude emulsion is proposed where the crude emulsion is forced through a porous membrane, wherein the porous membrane is constructed from two or more superimposed layers which differ in pore diameter.
    Type: Application
    Filed: November 17, 2005
    Publication date: May 18, 2006
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Thomas Danner, Hartwig Voß, Andreas Bauder, Sonja Viereck