Patents by Inventor James Matthew Williams

James Matthew Williams 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 a metal terephthalate polymer
    Patent number: 7825213
    Abstract: A method of making a metal-terephthalate polymer from polyester ethylene terephthalate includes reacting polyester ethylene terephthalate with a metal compound in a non-aqueous melt environment at an elevated temperature. The elevated temperature will be greater than 270° C., and preferably rises to a temperature of about 520° C. The method is preferably carried out at a low pressure. The method may be used in the recycling of passenger vehicle tire shreds to produce a carbon black rrich ppowder that is enriched in the metal-terephthalate polymer.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: November 2, 2010
    Assignee: Chem Engineering Energy, LLC
    Inventors: Daniel Eric Steinmeyer, Alan Marc Levine, James Matthew Williams
  • Method of making a metal terephthalate polymer
    Publication number: 20090258993
    Abstract: A method of making a metal-terephthalate polymer from polyester ethylene terephthalate includes reacting polyester ethylene terephthalate with a metal compound in a non-aqueous melt environment at an elevated temperature. The elevated temperature will be greater than 270° C., and preferably rises to a temperature of about 520° C. The method is preferably carried out at a low pressure. The method may be used in the recycling of passenger vehicle tire shreds to produce a carbon black rich powder that is enriched in the metal-terephthalate polymer.
    Type: Application
    Filed: April 11, 2008
    Publication date: October 15, 2009
    Applicant: Chem Engineering Engergy, LLC
    Inventors: Daniel Eric Steinmeyer, Alan Marc Levine, James Matthew Williams