Patent ID: 8202591

Claim:
A polyethylene terephthalate resin obtained by melt polymerization under a reduced pressure or under an inert gas atmosphere and having the properties comprising: (A) an intrinsic viscosity [η] of 0.4 to 2.5 dl/g; (B) a content of carboxyl end groups of 30 meq/kg or less; (C) a content of acetaldehyde of 10 ppm or less; (D) a hue represented by the L value of 99 or greater and the b value of 0.4 or less, said hue being measured by transmission of hexafluoroisopropanol solution; (E) Mw/Mn of 1.8 to 2.3; and (F) a content of cyclic trimer of 5 wt % or less.