Patents by Inventor Johannes Ludovicus Martinus Van Hilst

Johannes Ludovicus Martinus Van Hilst 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).

  • Patent number: 7358294
    Abstract: An aqueous coating composition comprising a crosslinkable water-dispersible polyurethane oligomer wherein said composition when drying to form a coating has an open time of at least 20 minutes, a wet-edge time of at least 10 minutes, a tack free time of <20 hours and an equilibrium viscosity of <5,000 Pa·s at a solids content when drying in the range of from 20 to 55 wt % using a shear rate in the range of from 9±0.5 to 90±5 s?1 and at 23+2° C.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: April 15, 2008
    Assignee: DSM IP Assets BV
    Inventors: Alfred Jean Paul Buckmann, Emilio Martin, Gerardus Cornelis Overbeek, Johannes Ludovicus Martinus Van Hilst, John Christopher Padget, Pablo Steenwinkel, Tom Annable, Ronald Tennebroek
  • Patent number: 7217758
    Abstract: An aqueous coating composition comprising a crosslinkable water-dispersible oligomer(s), a dispersed polymer(s) and optionally a non-crosslinkable water-dispersible oligomer wherein the crosslinkable oligomer(s) and non-crosslinkable oligomer(s) comply with Equation 1 as follows: - 15 × 10 4 < L = Mw × PDi 0.8 A × ( 1 + Q ) 0.5 + { ( Mw × PDi 0.8 ) / A } 0.5 × V - Y - Z < 40 × 10 4 .
    Type: Grant
    Filed: October 12, 2001
    Date of Patent: May 15, 2007
    Assignee: DSM IP Assets B.V.
    Inventors: Alfred Jean Paul Buckmann, Emilio Martin, Gerardus Cornelis Overbeek, Johannes Ludovicus Martinus Van Hilst, Jurgen Scheerder, Pablo Steenwinkel, Ronald Tennebroek
  • Publication number: 20040014922
    Abstract: Bulk-modified potting composition based on a curable epoxy resin or on a mixture of these resins, where the resin or the mixture is composed of an epoxy resin, a hardener, where appropriate an accelerator, and also other additives, such as fillers, flexibilizers, and colorants, which potting composition (a) comprises a three-dimensionally crosslinked polysiloxane in disperse form and with a particle size in the range from 0.02 &mgr;m to 50 &mgr;m, which, where appropriate, has reactive groups which can react chemically with the epoxy resin and/or the hardener, (b) a selected linear or branched siloxane compound which has reactive groups which can react chemically with the epoxy resin and/or the hardener, and also, where appropriate, (c) a low-molecular-weight oligomeric siloxane compound, the use of the potting composition as an engineering material or as an insulating material, and the moldings and insulation produced therefrom.
    Type: Application
    Filed: April 4, 2003
    Publication date: January 22, 2004
    Inventors: Alfred Jean Paul Buckmann, Emilio Martin, Gerardus Cornelis Overbeek, Johannes Ludovicus Martinus Van Hilst, John Christopher Padget, Pablo Steenwinkel, Tom Annable, Ronald Tennebroek
  • Publication number: 20030191236
    Abstract: An aqueous coating composition comprising a crosslinkable water-dispersible oligomer(s), a dispersed polymer(s) and optionally a non-crosslinkable water-dispersible oligomer wherein the crosslinkable oligomer(s) and non-crosslinkable oligomer(s) comply with Equation 1 as follows: 1 - 15 × 10 4 < L = Mw × PDi 0.8 A × ( 1 + Q ) 0.5 + { ( Mw × PDi 0.8 ) / A } 0.
    Type: Application
    Filed: March 24, 2003
    Publication date: October 9, 2003
    Inventors: Alfred Jean Paul Buckmann, Emilio Martin, Gerardus Cornelis Overbeek, Johannes Ludovicus Martinus Van Hilst, Jurgen Scheerder, Pablo Steenwinkel, Ronald Tennenbroek