Patents by Inventor Dirk Gijsbrechts

Dirk Gijsbrechts 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).

  • Toner composition
    Patent number: 6562534
    Abstract: A toner composition is provided wherein by adding aliphatic lower molecular weight compounds which are partly or completely compatible with the binder resin(s), the melt viscosity of the toner composition can be lowered while the glass transition temperature (Tg) is more or less constant. Inclusion of these adding aliphatic lower molecular weight compounds, having a number average molecular weight, as measured by GPC in toluene, of from 500 to 3,000, results in toner compositions with a better adhesion and gloss and still an acceptable level of FOT and hot-offset. Also provide is a method for fixing toner images on a substrate.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: May 13, 2003
    Assignee: Xeikon N.V.
    Inventors: Stefaan De Meutter, Lode Deprez, Dirk Gijsbrechts