Patents by Inventor Josef Wilhelm

Josef Wilhelm 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: 6210659
    Abstract: A pearlescent concentrate containing: (a) from 30 to 80% by weight of an alkyl ether sulfatef; (b) from 5 to 20% by weight of a surfactant selected from the group consisting of a betaine, an alkyl and/or alkenyl oligoglycoside, and mixtures thereof; and (c) from 1 to 10% by weight of an (oligo)ethylene glycol mono- and/or difatty acid ester, all weights being based on the total weight of the composition, and wherein the concentrate is polyol-free.
    Type: Grant
    Filed: May 12, 1999
    Date of Patent: April 3, 2001
    Assignees: Henkel Kommanditgesellschaft auf Aktien, Wella Aktiengesellschaft Wella AG
    Inventors: Josef Wilhelm, Rudolf Bimczok, Werner Kohl, Achim Ansmann, Rolf Kawa
  • Patent number: 4892728
    Abstract: The present invention relates to a pumpable cationic fatty alcohol dispersion having a high content of dispersed fatty alcohol and a low content of cationic dispersant, characterized in that it contains:(A) from more than 10 to about 25.0% by weight of a linear or branched, primary, saturated C.sub.14 -C.sub.22 fatty alcohol;(B) from about 0.01 to about 1% by weight of a cationic surface-active compound containing a quaternary ammonium, pyridinium or imidazolinium group and a linear C.sub.8 -C.sub.22 alkyl or 2-hydroxyalkyl group; and(C) water quantity sufficient to adjust to 100% by weight.It has surprisingly been found that the fatty alcohol dispersions according to the invention can be stabilized with very small quantities of the cationic surface-active compound and that, despite high fatty alcohol contents, a low viscosity and hence good pumpability of the dispersion can be obtained, particularly with low contents of cationic dispersant.
    Type: Grant
    Filed: March 16, 1988
    Date of Patent: January 9, 1990
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Rolf Kawa, Holger Tesmann, Josef Wilhelm, Karl-Heinz Rose, Eugen Konrad