A polyethylene based resin exhibiting excellent moldability and durability and having an excellent balance between impact resistance and stiffness; and a hollow plastic molded article using the foregoing resin, which exhibits excellent moldability, durability and barrier properties and has an excellent balance between impact resistance and stiffness, are provided. The polyethylene based resin satisfies the following requirements (1) to (4): (1) a high-load melt flow rate (HLMFR) is from 1 to 100 g/10 min; (2) a density is from 0.940 to 0.960 g/cm
3
; (3) a strain hardening parameter λmax of elongational viscosity is from 1.05 to 1.50; and (4) a rupture time in a full notch tensile creep test and a density satisfy the following relational expression (A): log (rupture time)≧−355×(density)+337.6 (A).
提供一种基于聚
乙烯的
树脂,具有出色的成型性和耐久性,并在冲击抗性和刚度之间具有优异的平衡性;以及使用上述
树脂的中空塑料成型品,它具有出色的成型性、耐久性和阻隔性能,并在冲击抗性和刚度之间具有优异的平衡性。聚
乙烯基树脂满足以下要求(1)至(4):(1)高负荷熔流速率(HLMFR)为1至100克/10分钟;(2)密度为0.940至0.960克/立方厘米;(3)拉伸粘度的应变硬化参数λmax为1.05至1.50;(4)在全缺口拉伸蠕变试验中的破裂时间和密度满足以下关系式(A):log(破裂时间)≧-355×(密度)+337.6(A)。