The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 02, 2010
Filed:
Apr. 11, 2008
Daniel Eric Steinmeyer, Chesterfield, MO (US);
Alan Marc Levine, Monroeville, PA (US);
James Matthew Williams, Latrobe, PA (US);
Daniel Eric Steinmeyer, Chesterfield, MO (US);
Alan Marc Levine, Monroeville, PA (US);
James Matthew Williams, Latrobe, PA (US);
Chem Engineering Energy, LLC, Chesterfield, MO (US);
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.