Patents by Inventor Josef Wollmann

Josef Wollmann 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: 5576425
    Abstract: The aliphatic primary alcohols are reacted with a glycose, more especially glucose, in the presence of an acidic catalyst in certain process steps so that particularly light-colored and alkali-stable alkyl glucosides are obtained after a subsequent, compulsory bleaching step, which represents an improvement over known direct synthesis processes. The process may be carried out both on a laboratory scale and also on an industrial production scale.
    Type: Grant
    Filed: July 25, 1994
    Date of Patent: November 19, 1996
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Karlheinz Hill, Manfred Biermann, Henry Rossmaier, Rainer Eskuchen, Willi Wuest, Josef Wollmann, Andreas Bruns, Guenter Hellmann, Karl-Heinz Ott, Walter Winkle, Klaus Wollmann
  • Patent number: 5374716
    Abstract: A process for the production of surface-active alkyl glycosides which is carried out by the transacetalization method with butanol, leads to a new alkyl glycoside as end product which is characterized by high color-stability in alkaline medium; besides a high proportion of alkyl monoglycoside, the product also contains polyglycoside on polyglycose and butyl glucoside.
    Type: Grant
    Filed: April 27, 1990
    Date of Patent: December 20, 1994
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Manfred Biermann, Karlheinz Hill, Willi Wuest, Rainer Eskuchen, Josef Wollmann, Andreas Bruns, Guenter Hellmann, Karl-Heinz Ott, Walter Winkle, Klaus Wollmann
  • Patent number: 5274144
    Abstract: A process for the production of a solid metal soap of the formulaM(R--COO)(R"--COO)in which M is at least one metal from the group of Ca, Mg, Cd, Ba, Zn, and Pb; and R and R' are C.sub.8 -C.sub.34 hydrocarbon radicals, by direct synthesis from at least one fatty acid with metal oxides and/or metal hydroxides which comprises maintaining a reaction zone containing a liquid phase comprising fatty acid under reduced pressure, passing a portion of the liquid phase to an external premixing zone, introducing a solid metal oxide and/or metal hydroxide into the liquid phase in the premixing zone, passing the mixture to the reaction zone through an intensive mixing zone, and continuously removing water of neutralization formed by the reaction.
    Type: Grant
    Filed: February 16, 1993
    Date of Patent: December 28, 1993
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Willi Wuest, Gottfried Duerr, Josef Wollmann, Harald Liebs, Hans Scheck