Film(s) and/or sheet(s) comprising polyester compositions which comprise cyclobutanediol and have a certain combination of inherent viscosity and moderate glass transition temperature

摘要

Described are film(s) and/or sheet(s) comprising polyesters comprising (a) a dicarboxylic acid component having terephthalic acid residues; optionally, aromatic dicarboxylic acid residues or aliphatic dicarboxylic residues; 2,2,4,4- tetramethyl-1 ,3-cyclobutanediol residues; and 1 ,4-cyclohexanedimethanol residues.