| 摘要 |
<p>PURPOSE:To improve gas barrier performance and moldability, and protect the appearance from being deformed by applying the constitution where multilayer plastic for forming a vessel to cover a core material of high insulation performance is provided with at least one layer of ethylene vinyl alcohol copolymer resin layer containing a specific amount of ethylene. CONSTITUTION:A vessel 3 is made of multilayer plastic having an outermost layer 4, an intermediate layer 6 and an innermost layer 8. The outermost layer 4 is formed out of a resin layer 5 made of polypropylene resin or the like of almost 100mu thickness having high chemical resistance. The intermediate layer 6 is formed out of a resin layer 7 made of ethylene vinyl alcohol copolymer resin of almost 100mu thickness having high gas barrier performance and containing 20mol.% to 50mol.% of ethylene. The innermost layer 8 is formed out of a resin layer 9 made of polypropylene resin or the like of almost 100mu thickness having high chemical resistance and moldability. The vessel 2 is filled with a core material 3 formed via the pulverization of hard urethane foam.</p> |
