| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a bottle for a drink which is superior in heat resistance and pressure resistance so that sterlization can be performed thoroughly when a carbonated drink with fruit juice, etc., is put in. SOLUTION: This bottle comprises a main body which can store liquid and has a mouth part. On its mouth part, a separate cylindrical piece made of polyethylene terephthalate having 35% or more cristallinity or polyester composed of mainly using the same is mounted integrally on an inner, outer or intermediate layer. The main body is composed of polyester containing as main components structural units expressed by formula I and formula II having a 75 deg.C-90 deg.C glass transition point. In the formulae, Ar<1> and Ar<2> represent benzen nucleus, and an alkyl group or halogen atom can substitute the benzen nucleus. Also X represents a methylene group, sulfonyl group, carbonyl group, cyclohexilene group, sulfur atom or oxygen atom, and a methyl group can substitute for the hydrogen atom of the methylene group.</p> |
