Patents by Inventor Sylvie De Mars

Sylvie De Mars 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).

  • Process for neutralizing an unneutralised polyether polyol
    Patent number: 9012695
    Abstract: A process for neutralizing an unneutralized polyether polyol prepared using a base catalyst according to the invention comprises the steps of addition of a polyprotic acid to the unneutralized polyether polyol, the highest pKa-value of the polyprotic acid being less than 3.5, wherein, per kilogram of unneutralized polyether polyol, “A” moles of said polyprotic acid are added to the unneutralized polyether polyol, such that (n?1)*A<B<n*A, wherein ? B being the moles of protons necessary to completely neutralize a kilogram of unneutralized polyether polyol; ? n being the number of protons which said polyprotic acid can donate; removing water from said neutralized polyether polyol at a temperature between 100 deg C. and 160 deg C.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: April 21, 2015
    Assignee: Huntsman International LLC
    Inventors: Sylvie De Mars, Joris Karel Peter Bosman
  • Process For Neutralizing An Unneutralised Polyether Polyol
    Publication number: 20120078018
    Abstract: A process for neutralizing an unneutralised polyether polyol prepared using a base catalyst according to the invention comprises the steps of addition of a polyprotic acid to the unneutralised polyether polyol, the highest pKa-value of the polyprotic acid being less than 3.
    Type: Application
    Filed: May 18, 2010
    Publication date: March 29, 2012
    Applicant: Huntsman International LLC
    Inventor: Sylvie De Mars