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:
Mar. 08, 2011
Filed:
Mar. 28, 2006
Emmett Dudley Crawford, Kingsport, TN (US);
Douglas Stephens Mcwilliams, Kingsport, TN (US);
David Scott Porter, Blountville, TN (US);
Gary Wayne Connell, Church Hill, TN (US);
Emmett Dudley Crawford, Kingsport, TN (US);
Douglas Stephens McWilliams, Kingsport, TN (US);
David Scott Porter, Blountville, TN (US);
Gary Wayne Connell, Church Hill, TN (US);
Eastman Chemical Company, Kingsport, TN (US);
Abstract
Described are graphic art films comprising a polyester compositions comprising at least one polyester, comprising dicarboxylic acid component comprising 70 to 100 mole % of terephthalic acid residues and a glycol component comprising: 20 to 30 mole % of 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues and 70 to 80 mole % of 1,4-cyclohexanedimethanol residues, wherein the total mole % of the dicarboxylic acid component is 100 mole %, the total mole % of the glycol component is 100 mole %, and polyester has following properties: the inherent viscosity of the polyester is from 0.60 to 0.75 dL/g; Tg of from 100 to 130° C.; notched Izod impact strength of at least 7.5 ft-b/inch at 23° C. according to ASTM D256; the melt viscosity of the polyester is less than 10,000 poise as measured at 1 radian/second on a rotary melt rheometer at 290° C.; and the polyester composition contains no polycarbonate.