Patents by Inventor Cornelis van der Kolk

Cornelis van der Kolk 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).

  • Use of halogenated sulfonates as a stabilizer booster in PVC
    Patent number: 6982292
    Abstract: The invention relates to a process to make stabilized PVC wherein use is made of at least one compound of the formula wherein M is selected from the group consisting of alkali metals, alkali earth metals, Al, and transition elements, and R is selected from the group consisting of substituted, linear or branched, alkyl, cycloalkyl, aryl, alkaryl, and aralkyl moieties, the substituents comprising at least one or more electron-withdrawing groups, as a color stability booster.
    Type: Grant
    Filed: August 6, 2002
    Date of Patent: January 3, 2006
    Assignee: Akzo Nobel NV
    Inventors: Daniël Stephan Van Es, Jacco Van Haveren, Augustinus Emmanuel Frissen, Johannes Cornelis Van Der Kolk, Gerard Hubert Frans Schmets, Hendrik Willem Huisman, Heather Blue Harvey
  • Use of halogenated sulfonates as a stabilizer booster in PVC
    Publication number: 20030065072
    Abstract: The invention relates to a process to make stabilized PVC wherein use is made of at least one compound of the formula 1
    Type: Application
    Filed: August 6, 2002
    Publication date: April 3, 2003
    Inventors: Daniel Stephan Van Es, Jacco Van Haveren, Augustinus Emmanuel Frissen, Johannes Cornelis Van Der Kolk, Gerard Hubert Frans Schmets, Hendrik Willem Huisman, Heather Blue Harvey
  • Aqueous multiphase dispersions for multicolor coatings
    Patent number: 6005031
    Abstract: Aqueous multiphase dispersions for multicolor coatings are produced by a process essentially comprising the steps of:providing one or more emulsion paints;adding at least one linear colloid capable of being insolubilised by borate ions and at least one hydrophilic inorganic clay to said paints to form base paints;providing an aqueous medium containing at least one hydrophilic inorganic clay;adding said base paints into said aqueous medium;adding borate ions to said aqueous medium;adding at least one emulsified binder to said medium;each of the emulsion paints having a different color.It is preferred to use galactomannoglycans as colloid (most preferably guar gum) and synthetic clays (most preferably of the smectite or hectorite types).
    Type: Grant
    Filed: August 17, 1998
    Date of Patent: December 21, 1999
    Assignee: Sigma Coatings, B.V.
    Inventors: Sylvia Bremer-Masseus, Cornelis van der Kolk, Marcel Weber, Johannes van Schie