POLYESTER COMPOSITION AND A PRODUCTION METHOD THEREFOR

摘要

A polyester composition, which comprises a polymer obtained by the polycondensation of an aliphatic dihydric alcohol, an aromatic diacid and a trivalent or higher polyfunctional compound by means of an antimony-based catalyst, has outstanding colour tone and transparency and can improve light transmittance when used in container moulding or in display optical film production.