POLYESTER RESIN COMPOSITION, BIAXIALLY ORIENTED POLYESTER FILM AND ORIENTED POLYESTER FIBER

摘要

PROBLEM TO BE SOLVED: To provide a polyester resin composition which, when formed into a molded article such as film and fiber, can give a smooth surface equal to practical use and an enhanced Young's modulus.;SOLUTION: The polyester resin composition, in which needle-like iron oxide having a diameter (D) of 0.01-2.5 μm, a length (L) of 0.1-10 μm and an aspect ratio (L/D) of 4-100 is dispersed in an amount of 0.1-20 wt.% based on a weight of the polyester resin composition, is provided. The biaxially oriented polyester film using it is also provided.;COPYRIGHT: (C)2005,JPO&NCIPI