Polyester resin composition, method of producing the same, polyester film, and solar cell power generation module

摘要

A polyester resin composition including: a polyester resin; a titanium compound derived from a catalyst: and a phosphorous compound, wherein formula (1): 0. 10 < Ti/P < 0.20 is satisfied wherein Ti/P represents a mass content ratio of titanium element to phosphorus element in the polyester resin composition, and formula (2): 0.0090 < ”IV ‰¤ 0.0185 (dL/g/hr) is satisfied wherein ”IV represents an increase in an intrinsic viscosity of the polyester resin composition per hour under conditions of 225°C and 50 Pa.