Patents by Inventor Stefan Hendrikus Maria Willems

Stefan Hendrikus Maria Willems 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).

  • Autoxidisable coating composition
    Patent number: 9023933
    Abstract: An autoxidisable coating composition comprising i) 10 to 60 wt % of an autoxidisable material with: a) a number average molecular weight <4500 g/mol; b) optionally 1 to 20 carbohydrate units; c) a fatty acid content of ?60 wt %; d) a viscosity at 100% solids in the range of from 0.05 to 5 Pa·s at 20+/?5° C. at a shear rate of 5000 s?1; ii) 90 to 40 wt % of an autoxidisable urethanised resin with: e) a number average molecular weight ?4000 g/mol; f) a fatty acid content of ?50 wt %; g) an acid value in the range of from 0 to 20 mgKOH/g resin; h) an isocyanate content in the range of from 1 to 35 wt % by weight of autoxidisable urethanised resin; where i)+ii)=100 wt %, based on the total solids content of the autoxidisable coating composition.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: May 5, 2015
    Assignee: DSM IP Assets B.V.
    Inventors: Willem Grisnich, Fokeltje Akke Koldijk, Adrianus Jozephus Hendricus Lansbergen, Albertus Johannes Reuvers, Stefan Hendrikus Maria Willems
  • AUTOXIDISABLE COATING COMPOSITION
    Publication number: 20120128990
    Abstract: An autoxidisable coating composition comprising i) 10 to 60 wt % of an autoxidisable material with: a) a number average molecular weight <4500 g/mol; b) optionally 1 to 20 carbohydrate units; c) a fatty acid content of ?60 wt %; d) a viscosity at 100% solids in the range of from 0.05 to 5 Pa·s at 20+/?5° C. at a shear rate of 5000 s?1; ii) 90 to 40 wt % of an autoxidisable urethanised resin with: e) a number average molecular weight ?4000 g/mol; f) a fatty acid content of ?50 wt %; g) an acid value in the range of from 0 to 20 mgKOH/g resin; h) an isocyanate content in the range of from 1 to 35 wt % by weight of autoxidisable urethanised resin; where i)+ii)=100 wt %, based on the total solids content of the autoxidisable coating composition.
    Type: Application
    Filed: April 27, 2010
    Publication date: May 24, 2012
    Inventors: Willem Grisnich, Fokeltje Akke Koldijk, Adrianus Hendricus Lansbergen, Albertus Johannes Reuvers, Stefan Hendrikus Maria Willems