| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a resin most suitable for a bellow-shaped bottle and a structure making the most of the advantage of a bellow shape. <P>SOLUTION: A PET resin bottle body of which the part or the whole in the vertical direction is made bellow-shaped in the horizontal direction except the longitudinal width of a drinking opening 3 at the top is given a shape durable to repeated shrinkage in the longitudinal width (height), and uses polyester which is most suitable for manufacturing it and obtained by reacting dimethyl terephthalate or a terephthalic acid with ethylene glycol is used. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
