Patents by Inventor Mark Govert Kalisvaart

Mark Govert Kalisvaart 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).

  • Filling composition for cables
    Patent number: 11091628
    Abstract: A filling composition is disclosed, the composition comprises (i) between 4 to 20 wt. % of a selectively hydrogenated isoprene-styrene block copolymer having a structure S-EP with at least 40 wt. % polystyrene content, a total diblock apparent molecular weight of at least 160 kg/mole, the polystyrene block S has a true molecular weight in the range of 60 to 110 kg/mole, and the polyisoprene block (EP) has a molecular weight in the range of 80-100 kg/mole, (ii) an oil, and (iii) optional additives. The filling composition is characterized as having a thixotropic ratio of 2-10, a drop point of at least 200° C., and a cone penetration at 25° C. of <500 dmm.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: August 17, 2021
    Assignee: Kraton Polymers LLC
    Inventors: Hendrik de Groot, Mark Govert Kalisvaart, Robert Bening, Huixian Yang
  • FILLING COMPOSITION FOR CABLES
    Publication number: 20200056035
    Abstract: A filling composition is disclosed, the composition comprises (i) between 4 to 20 wt. % of a selectively hydrogenated isoprene-styrene block copolymer having a structure S-EP with at least 40 wt. % polystyrene content, a total diblock apparent molecular weight of at least 160 kg/mole, the polystyrene block S has a true molecular weight in the range of 60 to 110 kg/mole, and the polyisoprene block (EP) has a molecular weight in the range of 80-100 kg/mole, (ii) an oil, and (iii) optional additives. The filling composition is characterized as having a thixotropic ratio of 2-10, a drop point of at least 200° C., and a cone penetration at 25° C. of <500 dmm.
    Type: Application
    Filed: August 1, 2019
    Publication date: February 20, 2020
    Applicant: Kraton Polymers LLC
    Inventors: Hendrik de Groot, Mark Govert Kalisvaart, Robert Bening, Huixian Yang