Polyester copolymer

Abstract

The present invention relates to an environmentally-friendly polyester copolymer. Specifically, according to one embodiment of the present invention, the polyester copolymer comprises: a moiety of a first dicarboxylic acid component including terephthalic acid or a derivative thereof; a moiety of a second dicarboxylic acid component including cyclohexane dicarboxylic acid, dimethyl cyclohexane dicarboxylate or a derivative thereof; and a moiety of a diol component including ethylene glycol or a derivative thereof, and comprises 30 mol % or higher of the second dicarboxylic acid component on the basis of the total dicarboxylic acid components, and thus is environmentally-friendly and has mechanical properties such as softness and elasticity, optical properties such as transparency and UV stability, and processability, which are all excellent.

Dependencies are inferred from the claim text.