Patents by Inventor James David Richardson

James David Richardson 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).

  • RECOVERY OF AROMATIC DICARBOXLYIC ACIDS FROM WASTE POLYESTER RESIN
    Publication number: 20090287017
    Abstract: The present invention relates to a process of recovering aromatic dicarboxylic acids with low metal contaminants from manufactured articles and/or articles contaminated with PVC or chlorinated compounds, made of or containing aromatic polyester resins, such as beverage bottles, fibers and films, or from waste from processing of these resins. In particular, the invention relates to the recovery of terephthalic acid, isophthalic acid and 2,6-naphthalene dicarboxylic acid from bottles for recycling which are made of PET, PEN or aromatic polyester copolymers.
    Type: Application
    Filed: June 21, 2006
    Publication date: November 19, 2009
    Inventors: Hussain Al Ghatta, Milan Hronec, James David Richardson