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:
Feb. 27, 2024
Filed:
Nov. 13, 2019
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Virginia Tech Intellectual Properties, Inc., Blacksburg, VA (US);
Monica Lotz, Houston, TX (US);
Kapil Kandel, Humble, TX (US);
Michael Salciccioli, Houston, TX (US);
Stephen Cohn, Spring, TX (US);
Alan A. Galuska, Huffman, TX (US);
Javier Guzman, Porter, TX (US);
S. Richard Turner, Blacksburg, VA (US);
Hans Eliot Edling, Radford, VA (US);
Edward E. Paschke, Galena, IL (US);
ExxonMobil Chemical Patents, Inc., Baytown, TX (US);
Virginia Tech Intellectual Properties, Inc., Blacksburg, VA (US);
Abstract
Semicrystalline polyethylene-2,2′-bifuran-5,5′-dicarboxylate (PEBF) homopolyester or copolyester with up to 5 mole percent isophthalate or up to 2.7 mole percent terephthalate, based on the diacid component, or up to 2.5 mole percent 1,4-cyclohexanedimethanol (CHDM), based on the diol component, prepared by esterifying or transesterifying the diacid and the diol components with a catalyst including about 10 to about 50 ppm wt metal, and polycondensation, wherein the bifuran polyester has an intrinsic viscosity of at least 0.4 g/dL and a semicrystalline melting peak (Tm) with ΔHf equal to or greater than 5 J/g on the second heating ramp.