Patents by Inventor Uwe Vagi

Uwe Vagi 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).

  • Preparation of pentenoic esters from formylvaleric esters
    Patent number: 4879406
    Abstract: Pentenoic esters are prepared by a process in which 4- and/or 3-formylvaleric esters are heated to 50.degree.-400.degree. C. in the presence of a catalyst which contains one or more elements of subgroup VIII of the Periodic Table.
    Type: Grant
    Filed: June 10, 1988
    Date of Patent: November 7, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Franz Merger, Juergen Frank, Uwe Vagi, Rolf Fischer
  • Preparation of 4-pentenoates
    Patent number: 4740613
    Abstract: 4-Pentenoates of the formula ##STR1## where R is alkyl of from 1 to 6 carbon atoms, are prepared by a process in which 5-methylbutyrolactone of the formula ##STR2## is reacted with an alcohol of the formulaR--O--H III,where R has the above meaning, at from 150.degree. to 400.degree. C. in the presence of an acidic catalyst.
    Type: Grant
    Filed: March 11, 1987
    Date of Patent: April 26, 1988
    Assignee: BASF Aktiengesellschaft
    Inventors: Rolf Fischer, Uwe Vagi