| 摘要 |
<p>PURPOSE:To provide a bottle of temperature-independent excellent barrier capability against oxygen carbon dioxide, water vapor, etc. made up of, as wall composing material, a specific crystalline polyamide resin. CONSTITUTION:The objective bottle made up of, as wall composing material, a crystalline polyamide resin which has the following characteristics: (1) in the amide backbone chain, having both alkylene and (a)symmetrical divalent cyclic hydrocarbon groups, (2) average ratio of the symmetrical cyclic hydrocarbon group per overall cyclic hydrocarbon group represents >=30(pref. >=45)mol%, (3) average number of the straight chain methylene units per said symmetrical cyclic hydrocarbon group falls between 4 and 15, pref. 5 and 13, (4) glass transition temperature (Tg) falls between 70 deg.C and 180 deg.C, and (5) melting point is <=370(pref. <=340) deg.C.</p> |
