| 摘要 |
PROBLEM TO BE SOLVED: To provide an injection molded article which elutes little, does not contain an endocrine disruptor, has excellent injection moldability, transparency, color tone, impact resistance and heat resistance, is little discolored after a sterilization treatment by the irradiation of radiations or electron beams, and is used for medical treatments. SOLUTION: This polyester-based resin injection-molded article for medical treatments, obtained by injection-molding a copolyester resin composition containing 5 to 300 ppm of one or more elements selected from germanium element and aluminum element, comprising 25 to 95 mol. % of ethylene glycol and 5 to 75 mol. % of cyclohexanedimethanol as a glycol component, 65 to 100 mol. % of terephthalic acid as a dicarboxylic acid component and having an intrinsic viscosity of 0.50 to 0.90 dl/g, is characterized by having the following characteristics. (1) Haze per 4 mm thickness is≤1.0. (2) Water elution amount at 50°C for 5 hrs is≤3 ppm. (3) Yellow index (YI) is≤8.0. COPYRIGHT: (C)2005,JPO&NCIPI |
