Patents by Inventor Birgitte Van de Vliet

Birgitte Van de Vliet 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).

  • Poly(styrene-butadiene-styrene)polymers having a high vinyl content in the butadiene block and hot melt adhesive composition comprising said polymers
    Publication number: 20060183844
    Abstract: The present invention provides a poly(styrene-butadiene-styrene) polymer having a high vinyl content in the butadiene block. The polymer also has a polystyrene content from 15% to 20% by weight; a coupling efficiency from 50 to 80%; a styrene block molecular weight from 9,000 to 10,000 g/mol; a vinyl content from 20 to 45%; and a melt flow rate of equal to or greater than 10.
    Type: Application
    Filed: April 5, 2006
    Publication date: August 17, 2006
    Applicant: KRATON Polymers U.S. LLC
    Inventors: Geert Vermunicht, Birgitte Van de Vliet, Jeffrey Southwick
  • Poly (styrene-butadiene-styrene)polymers having a high vinyl content in the butadiene block and hot melt adhesive compositions comprising said polymers
    Publication number: 20050228119
    Abstract: The present invention concerns a poly(styrene-butadiene-styrene) polymer having a high vinyl content in the butadiene block comprising in combination a polystyrene content (PSC) within a range of 15-20 % by weight, a coupling efficiency (CE) of 50-80%, a step I molecular weight (MW) between 9,000 and 10,000 kg/mol, and a vinyl content between 2045%. Hot melt adhesive compositions are also described comprising said SBS polymer together with a tackifying resin, a plasticizer and an anti-oxidant.
    Type: Application
    Filed: March 24, 2003
    Publication date: October 13, 2005
    Inventors: Geert Vermunicht, Birgitte Van de Vliet, Jeffrey Southwick