Patents by Inventor Bart Bouma

Bart Bouma 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).

  • Polyurethane dispersant resin
    Patent number: 8017686
    Abstract: The invention relates to a polyurethane dispersant resin having a polyurethane backbone having pendant hydrophilic polyalkylene oxide based side groups, the pendant side groups being linked to the polyurethane backbone via covalent bonds, and wherein the content of polyalkylene oxide in the polyurethane dispersant resin is at least 45% by weight, characterized in that the polyurethane additionally has pendant hydrophobic side groups which are linked to the polyurethane backbone via covalent bonds.
    Type: Grant
    Filed: August 21, 2006
    Date of Patent: September 13, 2011
    Assignee: Akzo Nobel Coating International B.V.
    Inventors: Roelof Buter, Josephina Johanna Hendrika Maria Raben-Schlief, Hendrik Meijer, Geertje Marte Kuiken, Rienk Hettema, Jamie MacLiver Roy, Bart Bouma
  • Polyurethane Dispersant Resin
    Publication number: 20080214729
    Abstract: The invention relates to a polyurethane dispersant resin having a polyurethane backbone having pendant hydrophilic polyalkylene oxide based side groups, the pendant side groups being linked to the polyurethane backbone via covalent bonds, and wherein the content of polyalkylene oxide in the polyurethane dispersant resin is at least 45% by weight, characterized in that the polyurethane additionally has pendant hydrophobic side groups which are linked to the polyurethane backbone via covalent bonds.
    Type: Application
    Filed: August 21, 2006
    Publication date: September 4, 2008
    Applicant: AKZO NOBEL COATINGS INTERNATIONAL B.V.
    Inventors: Roelof Buter, Josephina Hendrika Maria Raben-Schlief, Hendrik Meijer, Geertje Marte Kuiken, Rienk Hettema, Jamie MacLiver Roy, Bart Bouma