POLYESTER RESIN COMPOSITION, PROCESS FOR PRODUCING THE SAME AND MOLDING THEREOF

摘要

A polyester resin composition that at the time of melt molding, inhibits any side production of cyclic trimer, etc., suppressing any staining, etc. at molding; and a process for producing the same. There is provided a process for producing polyester resin composition (C), characterized by including melt kneading of polyester resin (A) satisfying the following formulae (1), (2) and (3) with polyester resin (B) satisfying the following formula (4): P1=10 (1) 0.1=Gel=1.5 (2) 0.001=Gel/P1=0.15 (3) 0=P2/Til=80 (4) (wherein in the formulae (1), (2) and (3), P1 represents the content (mol) of phosphorus atom and Gel the content (mol) of germanium atom per ton of polyester resin (A), and in the formula (4), P2 represents the content (mol) of phosphorus atom and Til the content (mol) of titanium atom per ton of polyester resin (B)). Further, there are provided polyester resin composition (C) obtained by the above process and a molding, such as a film, of the composition.