Patents Assigned to Petrecycle Ltd.
  • Method for the decontamination of polyethylene terephthalate
    Patent number: 7214723
    Abstract: A process for removing contaminants from PET components by mixing ethanediol with the PET feedstock at a temperature about the boiling point of ethanediol and for a time sufficient to convert the polyethylene terephthate components to polyethylene terephthate polymers which are soluble in the ethanediol and form bis(hydroxyethyl)terephthalate and produce a product mixture thereof containing insoluble materials. The soluble polyethylene terephthate polymers, bis(hydroxyethyl)terephthalate and ethanediol are recovered from the product mixture.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: May 8, 2007
    Assignee: Petrecycle Ltd.
    Inventor: Simon Michael West