| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce contamination of contents due to permeation of moisture or organic compounds from the outside of a container or due to discharge from the container into the internal of the container and reduce contamination of the contents due to fine dust or the like at the time of handling, by a method wherein at least one of a body or a lid is a mold of thermoplastic cyclic olefin resin. SOLUTION: A container has both a lid and a body made of thermoplastic resin, wherein a molding material comprising cyclic olefin resin is molded to form the lid, the body or both the lid and the body. The cyclic olefin resin is non-crystalline transparent resin having a saturated hydrocarbon ring structure in a principal chain or a side chain of polymer. In concrete, it may include ring-opening polymer of monomer having a norbornane ring and its hydrogen additive, addition polymer of monomer having a norbornane ring and kinds ofα-olefin, addition polymer of cyclic diene and its hydrogen additive or the like. Thus, various kinds of contamination to contents can be effectively prevented.</p> |
