| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain good productivity and heat insulation and to make a laminated structure molding hard to crack by laminating a plastic sheet-like material on a gas permeable base material. SOLUTION: A plastic sheet-like material is laminated on a gas permeable base material and molded. The sheet-like material is a substantially unoriented sheet manufactured by a melt extrusion method. Its material may be a polyester, a polypropylene, a polystyrene, polyvinyl chloride or the like if it is made of a thermoplastic resin. The material may contain a copolymer, an organic or inorganic additive such as a coloring agent, a crystal nucleating agent or the like, among them, the polyester is preferable, and the polyethylene or the polyethylene naphthalate is preferable. The nucleating agent is added so that the crystallized polyethylene terephthalate is preferable as a heat resistant container.</p> |
