| abstract |
(57) [Summary] [Object] To provide a copolymerized polyester resin which is excellent in heat shrinkability, has good appearance after shrinkage, and is capable of obtaining a heat shrinkable film having excellent mechanical strength. [Constitution] Terephthalic acid as a dicarboxylic acid component, ethylene glycol as a diol component, isophthalic acid as a dicarboxylic acid component in an amount of 2 to 10 mol%, based on the total amount of all dicarboxylic acid components and all diol components, A copolymerized polyester resin obtained by copolymerizing cyclohexanedimethanol as a component at a ratio of 5 to 20 mol% and butanediol at a ratio of 2 to 10 mol%. |