Graphic art films comprising polyester compositions formed from 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7902320
APP PUB NO 20060287474A1
SERIAL NO

11390563

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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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.

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Patent Owner(s)

  • EASTMAN CHEMICAL COMPANY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Connell, Gary Wayne Church Hill, US 100 2235
Crawford, Emmett Dudley Kingsport, US 116 2363
McWilliams, Douglas Stephens Kingsport, US 76 1710
Porter, David Scott Blountville, US 81 1831

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