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:
Jul. 10, 2018
Filed:
Mar. 06, 2017
Eastman Chemical Company, Kingsport, TN (US);
Emmett Dudley Crawford, Kingsport, TN (US);
Thomas Joseph Pecorini, Kingsport, TN (US);
Douglas Stephens McWilliams, Piney Flats, TN (US);
David Scott Porter, Blountville, TN (US);
Gary Wayne Connell, Church Hill, TN (US);
Ted Calvin Germroth, Kingsport, TN (US);
Benjamin Fredrick Barton, Kingsport, TN (US);
Damon Bryan Shackelford, Kingsport, TN (US);
Eastman Chemical Company, Kingsport, TN (US);
Abstract
A molded article comprising at least one polyester which comprises: (a) a dicarboxylic acid component comprising: i) 95 to 99.99 mole % of terephthalic acid residues; and ii) 0.01 to 5 mole % of isophthalic acid; and (b) a glycol component comprising: i) 5 to 15 mole % of 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues; ii) 85 to 95 mole % of 1,4-cyclohexanedimethanol residues; and iii) 5 mole % or less of modifying glycols which are not 2,2,4,4-tetramethyl-1,3-cyclobutanediol or cyclohexanedimethanol, wherein the polyester has an inherent viscosity from 0.80 to 1.0 dL/g and a glass transition temperature (Tg) of 90 to 110° C., and wherein the molded article does not contain polycarbonate.