| abstract |
The present invention relates to a polyester resin produced by polymerizing a dicarboxylic acid component comprising mainly an aromatic dicarboxylic acid or its ester forming derivative, and a diol component comprising mainly ethylene glycol in the presence of a catalyst containing a titanium compound, which polyester resin contains titanium atoms (Ti) in an amount of 0.002 to 1.0 mole based on one ton of the polyester resin and has the following properties:Intrinsic viscosity ([eta], dl/g)>=0.70Hunter's "b" value<=4Acetaldehyde content (AA0, ppm)<=5.0. |