Patents by Inventor Willem Kamminga

Willem Kamminga 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: 6596860
    Abstract: The invention relates to an adhesive composition comprising a derivative of a starch, which comprises at least 95 wt. % of amylopectin, based on dry substance of the starch, wherein the derivative is obtainable by cross-linking, etherification, esterification or a combination thereof, of the starch. The invention further relates to a process for preparing the adhesive composition and to the use thereof for adhering wallpaper or billposter to a substrate.
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: July 22, 2003
    Assignee: Cooperatieve Verkoop-en Productievereniging van Aardappelmeel en Derivaten AVEBE B.A.
    Inventors: Ronald Peter W. Kesselmans, Ido Pieter Bleeker, Willem Kamminga
  • Patent number: 5087649
    Abstract: Dry products in flake or granulate form suitable as a paste base may be obtained by drying a mixture, containing approximately 30 to 80% by weight of water, of from(a) 30 to 95% by weight of carboxymethylated and/or alkoxylated starch,(b) 3 to 40% by weight of a cellulose ether, and(c) 2 to 40% by weight of a water-dispersible polymer or water-soluble polymer, and(d) optionally, conventional additives, such as preservatives, wetting agents, fillers and the like,in a thin layer on a surface heated to 80.degree. to 200.degree. C. The dry products obtained do not undergo physical separation and are readily dispersible or self-dispersible in water.
    Type: Grant
    Filed: December 7, 1990
    Date of Patent: February 11, 1992
    Assignees: Henkel Kommanditgesellschaft auf Aktien, Cooperatieve Verkoop-en Productievereniging van Aardappelmeel en Derivaten "AVEBE" B.A.
    Inventors: Juergen Wegner, Wolfgang Dierichs, Werner Haller, Johannes J. Jansen, Anthony Capelle, Willem Kamminga, Jacobus Guns