发明授权
US07902320B2 Graphic art films comprising polyester compositions formed from 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol 失效
包含由2,2,4,4-四甲基-1,3-环丁二醇和1,4-环己烷二甲醇形成的聚酯组合物的图形艺术薄膜

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