POLYESTER-BASED FILM AND PREPARATION METHOD THEREOF
An embodiment relates to a polyester-based film which comprises: a polyester resin in which a diol containing 1,4-cyclohexanedimethanol and an aromatic dicarboxylic acid are polymerized; and a filler, wherein tensile strength at room temperature is 15 kgf/mm^2 or more and elongation at break is 60%...
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