Polyester compositions which comprise cyclobutanediol having certain cis/trans ratios
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United States of America Patent
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Jul 26, 2011
Grant Date -
Dec 21, 2006
app pub date -
Mar 28, 2006
filing date -
Jun 17, 2005
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Abstract
Described are polyester compositions comprising (a) a dicarboxylic acid component comprising terephthalic acid residues; optionally, aromatic dicarboxylic acid or aliphatic dicarboxylic acid residues; 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues, wherein said 2,2,4,4-tetramethyl-1,3-cyclobutanediol contains certain cis to trans ratios; and 1,4-cyclohexanedimethanol residues.
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