Patents by Inventor Linda von dem Bussche-Hunnefeld

Linda von dem Bussche-Hunnefeld 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).

  • Patent number: 6365758
    Abstract: A process for preparing tocopheryl esters or tocotrienyl esters by acid-catalyzed esterification of a tocopherol or a tocotrienol in a solvent while stirring at elevated temperature, which comprises a) carrying out the esterification with the appropriate carboxylic acid, b) carrying out the esterification with from 2.5 to 6 mol of the carboxylic acid in an aliphatic, cycloaliphatic or aromatic hydrocarbon boiling in the range from 80 to 200° C., or else with from 1.0 to 2.5 mol of the carboxylic acid in a mixture consisting of an aliphatic or cycloaliphatic hydrocarbon boiling in the range from 80 to 200° C.
    Type: Grant
    Filed: January 26, 1998
    Date of Patent: April 2, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Joanna Linda von dem Bussche-Hünnefeld, Hagen Jaedicke, Guido Harms, Harald Laas
  • Patent number: 6143906
    Abstract: Ascorbyl sorbates of the formula I, ##STR1## where the variables independently of one another have the following meanings:R.sup.1 and R.sup.2are hydrogen, C.sub.1 -C.sub.12 -alkyl, C.sub.1 -C.sub.20 -acyl;where R.sup.1 and R.sup.2, together with the oxygen atoms to which they are bonded and the carbon atoms bonded to the oxygen atoms, can form an unsubstituted or substituted heterocycle;R.sup.3 is hydrogen or a cation selected from the group consisting of alkali metals and alkaline earth metals.
    Type: Grant
    Filed: October 26, 1998
    Date of Patent: November 7, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Harald Streicher, Linda von dem Bussche-Hunnefeld, Horst Westenfelder, Hans-Ulrich Wekel