| abstract |
A polyester resin having excellent color tone and transparency, and a method for producing the same are provided. A polyester resin having a dicarboxylic acid structural unit containing 5 to 60 mol% of a dicarboxylic acid unit having a cyclic acetal skeleton and / or a diol structural unit containing 5 to 60 mol% of a diol unit having a cyclic acetal skeleton. The b * value of the 3.2 mm-thick injection molded article measured by JIS K 7105 is -5 to +5, the a * value is -5 to +5, the L * value is 85 or more, and A polyester resin having a haze of 5% or less. [Selection diagram] None |