| 摘要 |
<p>The object of the present invention is to provide a polyester resin composition which enables obtaining a blow molded container having excellent heat resistance and transparency with high productivity at the molding thereof and to provide a blow molded container composed thereof, in particular, to provide a polyester resin composition which enables obtaining a highly transparent blow molded container and to provide a blow molded container composed thereof. Thus, there is provided a polyester resin composition comprising: (A) a polyethylene terephthalate composed mainly of repeating units derived from a dicarboxylic acid containing terephthalic acid and/or an esterified derivative thereof and a diol containing ethylene glycol and/or an esterified derivative thereof, said polyethylene terephthalate containing diethylene glycol units in a ratio of 0.5 to 2.0% by weight based on the polyethylene terephthalate, said polyethylene terephthalate containing a cyclic trimer, the content of which is not greater than 0.5% by weight based on the polyethylene terephthalate, and (B) an ethylene/(meth)acrylic acid copolymer, optionally together with (C) polyethylene, said ethylene/(meth)acrylic acid copolymer (B) contained in the composition in an amount of 0.1 to 10,000 ppb based on the composition. Further, there are provided a preform formed from the composition and a blow molded container produced therefrom.</p> |
