Patents by Inventor Raf Elen

Raf Elen 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).

  • Polyurethane foams having improved mechanical performance
    Patent number: 11292867
    Abstract: A polyurethane foam material having the following properties: Compression hardness at 10% (according to ISO 3386/1) higher than 60 kPa and lower than 120 kPa; Free rise density in the range 40-80 kg/m3 (according to ISO 845); Flexural modulus (according to ISO 1209-2) in range 0.95-2 MPa.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: April 5, 2022
    Assignee: HUNTSMAN INTERNATIONAL LLC
    Inventors: Raf Elen, Luc Van Essche
  • POLYURETHANE FOAMS HAVING IMPROVED MECHANICAL PERFORMANCE
    Publication number: 20210277169
    Abstract: A polyurethane foam material having the following properties: Compression hardness at 10% (according to ISO 3386/1) higher than 60 kPa and lower than 120 kPa; Free rise density in the range 40-80 kg/m3 (according to ISO 845); Flexural modulus (according to ISO 1209-2) in range 0.95-2 MPa.
    Type: Application
    Filed: August 22, 2017
    Publication date: September 9, 2021
    Inventors: Raf Elen, Luc Van Essche
  • Process for making a polyurethane foam
    Patent number: 8658709
    Abstract: Process for preparing a polyurethane foam, according to the free rise process, the foam having a free rise density of 5-40 kg/m3, comprising reacting at an index of 40-80 a polyisocyanate composition consisting of diphenylmethane diisocyanate and of homologues of diphenylmethane diisocyanate, said homologues having an isocyanate functionality of 3 or more, and wherein the polyisocyanate composition has an average isocyanate functionality of 2.10-2.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: February 25, 2014
    Assignee: Huntsman International LLC
    Inventors: Philip Berthels, Raf Elen, Luc Van Essche
  • PROCESS FOR MAKING A POLYURETHANE FOAM
    Publication number: 20090118386
    Abstract: Process for preparing a polyurethane foam, according to the free rise process, the foam having a free rise density of 5-40 kg/m3, comprising reacting at an index of 40-80 a polyisocyanate composition consisting of diphenylmethane diisocyanate and of homologues of diphenylmethane diisocyanate, said homologues having an isocyanate functionality of 3 or more, and wherein the polyisocyanate composition has an average isocyanate functionality of 2.10-2.
    Type: Application
    Filed: February 22, 2007
    Publication date: May 7, 2009
    Applicant: Huntsman International LLC
    Inventors: Philip Berthels, Raf Elen, Luc Van Essche