Patent ID: 8530045
Filing Date: 2013-09-10
Classification: C08G,C08J,Y10T

Abstract:
1. A polymeric film comprising a copolyester having an acid component and an aliphatic diol component, said acid component comprising an aromatic dicarboxylic acid and a sulfomonomer containing a sulfonate group attached to the aromatic nucleus of an aromatic dicarboxylic acid, wherein said polymeric film has an ultimate tensile strength at destruction (UTD), as measured herein, in the range of from about 2 kgf/mm 2 to about 15 kgf/mm 2 in the machine direction, and from about 2.5 kgf/mm 2 to about 17 kgf/mm 2 in the transverse direction, and wherein the polymeric film has an Unrestrained Linear Thermal Shrinkage in a range from −1.5% to 3.0% in the machine direction and in a range from 0% to 5.0% in the transverse direction.