Patents by Inventor Stijn De Loos

Stijn De Loos 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).

  • Macromer and process for making polymer polyols
    Patent number: 9994701
    Abstract: Polymer polyols are made by polymerizing an ethylenically unsaturated monomer in a continuous polyol phase. The polymerization is stabilized with a macromer or a pre-formed polymer made by polymerizing or copolymerizing the macromer. The macromer is a random polymer of propylene oxide and ethylene oxide in defined ratios, which also contains polymerization carbon-carbon double or triple bond. Polymer polyols made in the process exhibit little viscosity rise when blended with water. Flexible polyurethane foam made from the polymer polyol exhibits excellent hardness, have good surface characteristics and, when pigmented, exhibit good, uniform coloration.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: June 12, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Ricco B. Borella, Sven Claessens, Jean-Paul Masy, Stijn De Loos
  • Macromer and Process for Making Polymer Polyols
    Publication number: 20150274952
    Abstract: Polymer polyols are made by polymerizing an ethylenically unsaturated monomer in a continuous polyol phase. The polymerization is stabilized with a macromer or a pre-formed polymer made by polymerizing or copolymerizing the macromer. The macromer is a random polymer of propylene oxide and ethylene oxide in defined ratios, which also contains polymerization carbon-carbon double or triple bond. Polymer polyols made in the process exhibit little viscosity rise when blended with water. Flexible polyurethane foam made from the polymer polyol exhibits excellent hardness, have good surface characteristics and, when pigmented, exhibit good, uniform coloration.
    Type: Application
    Filed: September 23, 2013
    Publication date: October 1, 2015
    Inventors: Ricco B. Borella, Sven Claessens, Jean-Paul Masy, Stijn De Loos