POLYETHYLENE COMPOSITION FOR INJECTION MOULDED CAPS AND CLOSURE ARTICLES (VARIANTS), A PROCESS FOR THE PRODUCTION OF SAID COMPOSITION; AN ARTICLE COMPRISING THE COMPOSITION, A PROCESS FOR THE PRODUCTION OF THE ARTICLE AND ITS USE

摘要

The present invention relates to the multimodal polyethylene compositions wherein (I) the composition has the melt flow rate (MFR) of 0.1 to 100 g/10 min, (II) the shear thinning index SHIand the log MFRof the composition satisfy the following relation: SHI -10.58 log MFR[g/10 min]/(g/10 min)+12.94, and (III) the composition has an environmental stress crack resistance (ESCR) of 10 h or more. Furthermore, the present invention relates to a process for the production of said composition, an injection moulded article, in particular a cap or closure, comprising said composition and to the use of said composition for the production of the injection moulded article.