| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an inexpensive, blow-molded double container which has a thermal insulation effect, can suppress the change of the temperature of high-temperature or low-temperature liquid in the container for a long time, and can be grasped enough with bare hands. <P>SOLUTION: A laminated preform having an outer layer and an inner layer which are made of mutually non-adhesive synthetic resins respectively is blow-molded so that the inner layer is subjected to plastic deformation, and a void is formed between the outer layer and the inner layer by the post-shrinkage of the inner layer after molding. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
