Patents by Inventor Marianne Guyader

Marianne Guyader 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).

  • Method of Making Isosorbide Polycarbonate
    Publication number: 20110077377
    Abstract: A polycarbonate is provided that contains repeat units derived from isosorbide and a residue derived from an activated diaryl carbonate. The polycarbonate has 1H-NMR peaks associated with the repeat units derived from isosorbide. The polycarbonate contains no more than a maximum allowable amount of sorbitol-derived color bodies. If these color bodies are present in the polycarbonate it has a 1H-NMR peak associated with the color bodies. The maximum allowable amount of color bodies are present when the integrated area of the 1H-NMR peak associated with the color bodies divided by the integrated areas of the 1H-NMR peaks associated with the repeat units derived from isosorbide is 0.025.
    Type: Application
    Filed: December 8, 2010
    Publication date: March 31, 2011
    Applicant: SABIC INNOVATIVE PLASTICS IP BV
    Inventors: Hans-Peter Brack, Marianne Guyader, Han Vermeulen, Dennis James Patrick Maria Willemse
  • Method of making isosorbide polycarbonate
    Patent number: 7863404
    Abstract: A polycarbonate is provided that contains repeat units derived from isosorbide and a residue derived from an activated diaryl carbonate. The polycarbonate has 1H-NMR peaks associated with the repeat units derived from isosorbide. The polycarbonate contains no more than a maximum allowable amount of sorbitol-derived color bodies. If these color bodies are present in the polycarbonate it has a 1H-NMR peak associated with the color bodies. The maximum allowable amount of color bodies are present when the integrated area of the 1H-NMR peak associated with the color bodies divided by the integrated areas of the 1H-NMR peaks associated with the repeat units derived from isosorbide is 0.025.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: January 4, 2011
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Hans-Peter Brack, Marianne Guyader, Han Vermeulen, Dennis James Patrick Maria Willemse
  • METHOD OF MAKING ISOSORBIDE POLYCARBONATE
    Publication number: 20100081784
    Abstract: A polycarbonate is provided that contains repeat units derived from isosorbide and a residue derived from an activated diaryl carbonate. The polycarbonate has 1H-NMR peaks associated with the repeat units derived from isosorbide. The polycarbonate contains no more than a maximum allowable amount of sorbitol-derived color bodies. If these color bodies are present in the polycarbonate it has a 1H-NMR peak associated with the color bodies. The maximum allowable amount of color bodies are present when the integrated area of the 1H-NMR peak associated with the color bodies divided by the integrated areas of the 1H-NMR peaks associated with the repeat units derived from isosorbide is 0.025.
    Type: Application
    Filed: September 26, 2008
    Publication date: April 1, 2010
    Applicant: SABIC Innovative Plastics IP BV
    Inventors: Hans-Peter Brack, Marianne Guyader, Han Vermeulen, Dennis James Patrick Maria Willemse