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:
Jan. 13, 2026
Filed:
Oct. 08, 2020
Eastman Chemical Company, Kingsport, TN (US);
Earl Edmondson Howell, Jr., Cookeville, TN (US);
Aaron Nathaniel Edens, Weber City, VA (US);
Anne-Martine Sherbeck Jackson, Kingsport, TN (US);
Donna Rice Quillen, Kingsport, TN (US);
Carol Julliard Greene, Kingsport, TN (US);
Mark Allen Peters, Jonesborough, TN (US);
Jonathan Michael Horton, Kingsport, TN (US);
Travis Wynn Keever, Gray, TN (US);
Michael Paul Ekart, Kingsport, TN (US);
Erin G. Ekart, Gray, TN (US);
Eastman Chemical Company, Kingsport, TN (US);
Abstract
A process for producing a polyester composition from recycled polyesters comprising: (a) introducing terephthalic acid (TPA); and ethylene glycol (EG); and recycled polyesters (b) passing the paste tank slurry to a first reaction zone; (c) introducing at least one additional glycol; (d) reacting the TPA and EG and the recycled polyesters with the at least one additional glycol in the first reaction zone at a melt temperature of at least 200° C.; (e) passing the first esterification product to a second reaction zone; (f) reacting further the first esterification product; (g) passing the second esterification product to a third reaction zone; (h) polycondensing the second esterification product in the third reaction zone to form a polymerization product.