| 摘要 |
PROBLEM TO BE SOLVED: To provide a blow-molded plastic article which has a container outer surface layer excellent in glossiness, is excellent in transparency, impact resistance, flexibility, and environmental stress crack resistance, and has a feeling of high quality. SOLUTION: For example, a multilayer blow-molded article formed by a laminate composed of an outer layer (A), an intermediate layer (B), and an inner layer (C) is provided. The outer layer (A) is made of polyethylene which is produced by a metallocene catalyst and has an MFR of 1.0-15 g/10 min, a density of 0.870-0.928 g/cm<SP>3</SP>, and a ratio Mw/Mn of 1.5-4.0. The intermediate layer (B) is made of high-pressure process low-density polyethylene having an MFR of 0.25-30 g/10 min, a density of 0.910-0.930 g/cm<SP>3</SP>, and a ratio Mw/Mn of 3.5-7.0. The inner layer (C) is made of polyethylene which is produced by a Phillips or Ziegler catalyst and has an MFR of 0.08-4.0 g/10 min, a density of 0.935-0.967 g/cm<SP>3</SP>, and a ratio Mw/Mn of 5.0-28. COPYRIGHT: (C)2009,JPO&INPIT |
