| 摘要 |
The present invention relates to an injection stretch blow molded article, comprising a Ziegler-Natta catalyzed polyethylene resin, wherein the polyethylene resin has a multimodal molecular weight distribution and comprises at least two polyethylene fractions A and B, fraction A having a higher molecular weight and a lower density than fraction B, each fraction prepared in different reactors of at least two reactors connected in series, wherein: fraction A has a melt index HL275 of at least 11 g/10min and of at most 20 g/10min measured according to according to ISO 1133, condition G, at 190°C and under a load of 21.6kg except that a die of 2.75mm was used; and a density of at least 941 kg/m3 and of at most 946 kg/m3 as determined according to ASTM 1505 at a temperature of 23° C; and the polyethylene resin has a melt index MI2 of at least 1.5 g/10min and of at most 3.0 g/10min as determined according to ISO 1133, condition D, at 190°C and under a load of 2.16kg and the polyethylene resin has a density of at least 950 kg/m3 and of at most 965 kg/m3 measured according to ASTM 1505 at a temperature 23°C. |
