Patents by Inventor Andre Helbling

Andre Helbling 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).

  • Publication number: 20050061203
    Abstract: Coating compositions comprising a pigment and starch dispersion of discrete crosslinked starch particles in an aqueous liquid. The dispersion may be used as coating color for paper. A preferred process of preparing the dispersion of starch particles comprises (a) obtaining a mixture of starch and an aqueous liquid; (b) processing the mixture using shear forces in the presence of a crosslinker in an extruder; and (c) injecting a hydroxylic liquid into the extruder and dispersing the mixture inside the extruder or outside the extruder or both inside and outside the extruder to obtain the dispersion.
    Type: Application
    Filed: November 3, 2004
    Publication date: March 24, 2005
    Applicant: ECOSYNTHETIX INC.
    Inventors: Andre Helbling, Michael Hills, Friederike Stollmaier, Thomas Annen