| 摘要 |
PURPOSE:To obtain the subjected resin having excellent oxygen-barrier property, transparency and moldability with at least a specific value of intrinsic viscosity containing ethylene-2,6-naphthalene unit and ethylene isonaphthalate unit in a specific ratio. CONSTITUTION:The objective resin is composed of 90-40mol%, preferably 80-50mol%, ethylene-2,6-naphthalate unit and 10-60mol%, preferably 20-50 mol%, ethylene isonaphthalate unit and has >=0.3, preferably 0.4-1.0 intrinsic viscosity. |
