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

  • US 20060287474A1
  • Filed: 03/28/2006
  • Published: 12/21/2006
  • Est. Priority Date: 06/17/2005
  • Status: Active Grant
First Claim
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1. A graphic art film comprising at least one polyester composition comprising at least one polyester, which comprises:

  • (a) a dicarboxylic acid component comprising;

    i) 70 to 100 mole % of terephthalic acid residues;

    ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and

    iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and

    (b) a glycol component comprising;

    i) 10 to 99 mole % of 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues; and

    ii) 1 to 90 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

    wherein the inherent viscosity of the polyester is from 0.1 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.5 g/00 ml at 25°

    C.; and

    wherein the polyester has a Tg of from 100 to 200°

    C.

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