Patents by Inventor Pieter Slor

Pieter Slor 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).

  • Fluorochemical-free oil and grease resistant cellulosic materials
    Patent number: 11180890
    Abstract: The invention pertains to a cellulosic material provided with a coating comprising an oxidized carboxylated starch having a weight-average molecular weight of 0.3?10×106 Da and a water-soluble starch extender present in a quantity of 0 to 25 wt. % based on the coating dry weight, selected from a crosslinked cationic polyalkylene amine and a zirconium carbonate, as well as to use thereof in improving the oil and grease resistance of paper. The invention furthermore pertains to a method to improve the oil and grease resistance of a cellulosic material, comprising providing a cellulosic material, coating said material on at least one side with a homogenous aqueous composition comprising an oxidized carboxylated starch having a weight-average molecular weight of 0.3?10×106 Da and 0-3 wt. % of a starch extender, selected from a crosslinked cationic polyalkylene amine and a zirconium carbonate, and drying the cellulosic material.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: November 23, 2021
    Assignee: COÖPERATIE AVEBE U.A.
    Inventors: Didier André Pierre Delnoye, John Beugeling, Simon Petrus Jozef Laan, Pieter Slor, Jan Albert Bleeker
  • FLUOROCHEMICAL-FREE OIL AND GREASE RESISTANT CELLULOSIC MATERIALS
    Publication number: 20210017715
    Abstract: The invention pertains to a cellulosic material provided with a coating comprising an oxidized carboxylated starch having a weight-average molecular weight of 0.3?10×106 Da and a water-soluble starch extender present in a quantity of 0 to 25 wt. % based on the coating dry weight, selected from a crosslinked cationic polyalkylene amine and a zirconium carbonate, as well as to use thereof in improving the oil and grease resistance of paper. The invention furthermore pertains to a method to improve the oil and grease resistance of a cellulosic material, comprising providing a cellulosic material, coating said material on at least one side with a homogenous aqueous composition comprising an oxidized carboxylated starch having a weight-average molecular weight of 0.3?10×106 Da and 0-3 wt. % of a starch extender, selected from a crosslinked cationic polyalkylene amine and a zirconium carbonate, and drying the cellulosic material.
    Type: Application
    Filed: March 9, 2018
    Publication date: January 21, 2021
    Inventors: Didier André Pierre Delnoye, John Beugeling, Simon Petrus Jozef Laan, Pieter Slor, Jan Albert Bleeker