MIXED PELLET CONTAINING PELLETS OF POLYESTER AND RESIN COMPOSITION

摘要

PROBLEM TO BE SOLVED: To provide a mixed pellet comprising pellets of polyester that can produce a molded article having good chemical resistance and hardly causing a reduction in impact resistance after a long period of time and to provide a resin composition comprising pellets of polyester.SOLUTION: The mixed pellet contains a pellet of a polyester (A) and a pellet of a polyester (B). The polyester (A) is composed mainly of: a dicarboxylic acid unit composed mainly of a terephthalic acid unit; and a diol unit composed mainly of an ethylene glycol unit and a cyclohexanedimethanol unit in a molar ratio (ethylene glycol/cyclohexanedimethanol) of 75/25 to 98/2 and the intrinsic viscosity of the polyester (A) is 0.85 to 1.5 dl/g. The polyester (B) is composed mainly of: a dicarboxylic acid unit composed mainly of a terephthalic acid unit and an isophthalic acid unit in a molar ratio (terephthalic acid/isophthalic acid) of 80/20 to 98/2; and a diol unit composed mainly of an ethylene glycol unit and the intrinsic viscosity of the component (B) is 0.8 to 1.5 dl/g. The blending ratio (A/B) of the pellet of the polyester (A) and the pellet of the polyester (B) is 5/95 to 50/50.SELECTED DRAWING: None