Patents by Inventor Bert Volkert

Bert Volkert 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 producing polysaccharide esters or polysaccharide mixed esters
    Patent number: 9181352
    Abstract: The invention relates to a method for producing polysaccharide esters or polysaccharide mixed esters, in which a polysaccharide or a modified polysaccharide is converted with at least one esterification reagent and at least one halogenide component, an imidazole compound which is generated in situ being used as catalyst.
    Type: Grant
    Filed: May 26, 2010
    Date of Patent: November 10, 2015
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Bert Volkert, André Lehmann
  • METHOD FOR PRODUCING POLYSACCHARIDE ESTERS OR POLYSACCHARIDE MIXED ESTERS
    Publication number: 20120172587
    Abstract: The invention relates to a method for producing polysaccharide esters or polysaccharide mixed esters, in which a polysaccharide or a modified polysaccharide is converted with at least one esterification reagent and at least one halogenide component, an imidazole compound which is generated in situ being used as catalyst.
    Type: Application
    Filed: May 26, 2010
    Publication date: July 5, 2012
    Applicant: Frauhofer-Gesellschaft zur Forderung der Angewandten Forschung E.V.
    Inventors: Bert Volkert, André Lehmann
  • Method for producing polysaccharide derivatives
    Publication number: 20120088909
    Abstract: Process for esterifying, etherifying or silylating polysaccharide or derivatives thereof by means of an esterifying reagent, etherifying reagent or silylating reagent in the presence of an ionic liquid, in which (a) the process is carried out under heterogeneous reaction conditions, and (b) the amount of ionic liquid is 2% to 25% by weight, based on the polysaccharide or derivatives thereof.
    Type: Application
    Filed: March 2, 2010
    Publication date: April 12, 2012
    Applicant: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung E.V.
    Inventors: André Lehmann, Bert Volkert
  • Viscosity Regulator, Method For The Production Thereof, And Use Thereof
    Publication number: 20100158831
    Abstract: The present invention relates to a method for the production of a viscosity regulator by introducing hydrophobic and hydrophilic groups into a starch molecule. The invention also relates to viscosity regulators produced in this manner and the use thereof. The viscosity regulators according to the invention can be used as emulsifiers or as thickening agents of surfactant-containing systems, e.g. in cosmetic or pharmaceutical preparations.
    Type: Application
    Filed: March 28, 2008
    Publication date: June 24, 2010
    Inventors: Bert Volkert, André Lehmann, Heiko Nerenz, Andreas Achrader
  • Method for producing highly-substituted carboxyalkyl starch
    Publication number: 20040039191
    Abstract: The invention relates to a highly substituted carboxyalkyl starch which is obtained by a special slurry method. A conversion of starch with halogenated acids is thereby effected in an organic-aqueous reaction medium in the presence of alkali hydroxide. This starch is used in the chemical industry field.
    Type: Application
    Filed: April 4, 2003
    Publication date: February 26, 2004
    Inventors: Bert Volkert, Fritz Loth, Waldemar Lazik, Wolfgang Koch, Alexandra Hild