Patents by Inventor Wllibald Bose

Wllibald Bose 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).

  • Branched, quaternary polyoxyalkylene copolyesters, a process for their preparation, and their use
    Patent number: 4885111
    Abstract: Branched, quaternary polyoxyalkylene copolyesters are described which are prepared by esterifying an oxyalkylated primary fatty amine and an at least trihydric oxyalkylated alkanol or an oxyalkylated polyamine using a dicarboxylic acid or a dicarboxylic anhydride with polycondensation, and quaternizing the esterification product obtained using ethylene oxide or propylene oxide in the presence of a mineral acid or carboxylic acid. The novel, branched, quaternary polyoxyalkylene copolyesters are used as demulsifiers and corrosion inhibitors in the processing of crude oil emulsions.
    Type: Grant
    Filed: November 12, 1987
    Date of Patent: December 5, 1989
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Wllibald Bose, Manfred Hofinger, Martin Hille, Roland Bohm, Friedrich Staiss