Patents Assigned to Henkel Kommanditsegellschaft auf Aktien
  • Process for the production of a foam inhibitor mixture
    Patent number: 4801401
    Abstract: To prepare a highly effective foam inhibitor mixture consisting of paraffin hydrocarbons, hydrophobicized silica and liquid paraffin hydrocarbons, a finely divided silica is dispersed in paraffin hydrocarbons melting above 40.degree. C. and reacted with alkyl trichlorosilanes wherein the alkyl groups contain from 4 to 22 carbon atoms.
    Type: Grant
    Filed: March 6, 1987
    Date of Patent: January 31, 1989
    Assignee: Henkel Kommanditsegellschaft auf Aktien
    Inventors: Paul Schulz, Martin Witthaus, Juergen Waldmann