Patents Assigned to Chemip B.V.
  • Patent number: 8333831
    Abstract: The invention relates to a dispersion of antimony or indium doped tinoxide nanoparticles in an organic solvent, comprising a) 5-75 wt % of nanoparticles having a mean average size between 1 and 100 nm. b) a solvent comprising a hydroxyl group and an ether group. c) a water content of less then 15 wt %. d) a dispersant content of less then 0.1 wt %. The invention also relates to a method of making such a dispersion, by I. Making a mixture of an aqueous dispersion of antimony or indium doped tinoxide particles having an average size between 1 and 100 nm, a solvent comprising a hydroxyl group and an ether group, which forms an azeotrope with water, and a grafting compound. II. Heating the mixture under stirring at a temperature between 20 and 150° C. III. At least partially removing the solvent/water mixture. IV. Optionally adding more solvent. V. Repeating steps III and IV till the water content of the obtained dispersion is less then a desired value and the concentration solid is between 5 and 70 wt %.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: December 18, 2012
    Assignee: Chemip B.V.
    Inventors: Roelof van de Belt, Edwin Currie
  • Publication number: 20100188196
    Abstract: The present invention relates to A curable liquid composition comprising 0.5-20 wt % of conductive particles, 0.4-10 wt % of a curable compound having at least two polymerizable groups, 15-50 wt % of water, 5-50 wt % of a solvent D and 30-80 wt % of a solvent E, wherein solvent D is an alcohol or a keton and solvent E is an organic compound comprising one hydroxy group and one ether group, wherein the organic compound comprises between 3 and 8 carbon atoms, which forms an azeotrope with water.
    Type: Application
    Filed: November 19, 2007
    Publication date: July 29, 2010
    Applicants: CHEMIP B.V., KRIYA MATERIALS B. V.
    Inventors: Roelof Van De Belt, Edwin Currie