Patents by Inventor Lucas D. M. Van Den Brekel

Lucas D. M. Van Den Brekel 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).

  • Detergent compositions and process for preparing them
    Patent number: 5282996
    Abstract: A single-step process for the continuous preparation of a granular detergent composition or component, whereby 20 to 45% of a liquid acid precursor of an anionic surfactant, and at least an equivalent amount of a solid water-soluble alkaline inorganic material are continuously fed into a high-speed mixer/densifier, the mean residence time being from about 5 to 30 seconds, whereby the moisture content of the powder in the mixer is from 5 to 15%, and a degree of neutralization of at least 80% is attained.
    Type: Grant
    Filed: March 27, 1992
    Date of Patent: February 1, 1994
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Peter W. Appel, Lucas D. M. Van Den Brekel, Pieter A. Pel, Petrus L. J. Swinkels