Patents by Inventor Wendy Gezina Hof

Wendy Gezina Hof 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).

  • Slip-and leveling agent
    Patent number: 7915343
    Abstract: The invention relates to a new modified polyacrylate comprising fluorinated oxetane (FOX) polymer units functionalized with an unsaturated dicarboxylic acid and siloxane units and to its use as slip- and leveling agent and anti-cratering agent for a variety of applications. Thus, the invention relates to a slip- and leveling agent characterized in that it comprises a copolymer which is obtained by copolymerizing A at least one unit of a fluorinated oxetane polymer functionalized with an unsaturated dicarboxylic acid; B at least one terminal reactive polysiloxane unit; C at least one alkyl(meth)acrylate unit or cycloalkyl(meth)acrylate unit and/or (meth)acrylic acid and/or other units originating from vinylic compounds that can form radicals.
    Type: Grant
    Filed: May 8, 2007
    Date of Patent: March 29, 2011
    Assignee: BASF SE
    Inventors: Marcelles Van Der Sluis, Wendy Gezina Hof, Lothar Alexander Engelbrecht, Steffen Onclin
  • Polyurethane dispersant
    Patent number: 7682439
    Abstract: The invention relates to a dispersing agent comprising: the reaction product of A one or more polyisocyanates having an average functionality of from 2.0 to 5, with B a mixture from B1 monohydroxyl compounds, and B2 monohydroxy-, monocarboxylic acid compounds to form an intermediate, followed by reacting the intermediate with C an unsaturated monohydroxy functional anchoring group.
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: March 23, 2010
    Assignee: Ciba Corporation Tarrytown
    Inventors: Arend Noordam, Lothar Alexander Engelbrecht, Marcelles Van Der Sluis, Wendy Gezina Hof
  • Slip-and Leveling Agent
    Publication number: 20090176929
    Abstract: The invention relates to a new modified polyacrylate comprising fluorinated oxetane (FOX) polymer units functionalized with an unsaturated dicarboxylic acid and siloxane units and to its use as slip-and leveling agent and anti-cratering agent for a variety of applications. Thus, the invention relates to a slip- and leveling agent characterized in that it comprises a copolymer which is obtained by copolymerizing A at least one unit of a fluorinated oxetane polymer functionalized with an unsaturated dicarboxylic acid; B at least one terminal reactive polysiloxane unit; C at least one alkyl(meth)acrylate unit or cycloalkyl(meth)acrylate unit and/or (meth)acrylic acid and/or other units originating from vinylic compounds that can form radicals.
    Type: Application
    Filed: May 8, 2007
    Publication date: July 9, 2009
    Inventors: Marcelles Van Der Sluis, Wendy Gezina Hof, Lothar Alexander Engelbrecht, Steffen Onclin
  • Polyurethane Dispersant
    Publication number: 20090137733
    Abstract: The invention relates to a dispersing agent comprising: the reaction product of A one or more polyisocyanates having an average functionality of from 2.0 to 5, with B a mixture from B1 monohydroxyl compounds, and B2 monohydroxy-, monocarboxylic acid compounds to form an intermediate, followed by reacting the intermediate with C an unsaturated monohydroxy functional anchoring group.
    Type: Application
    Filed: February 15, 2007
    Publication date: May 28, 2009
    Inventors: Arend Noordam, Lothar Alexander Engelbrecht, Marcelles Van Der Sluis, Wendy Gezina Hof