Polyethylene composition for injection molded caps and closure articles

2 (1,100) 2 (1,100)2 The present invention relates to a multimodal polyethylene composition wherein (i) the composition has an MFRof 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,...

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Bibliographic Details
Main Authors Nord-Varhaug, Katrin, Eggen, Svein Staal, Fell, Hans Joerg
Format Patent
LanguageEnglish
Published 25.10.2011
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Summary:2 (1,100) 2 (1,100)2 The present invention relates to a multimodal polyethylene composition wherein (i) the composition has an MFRof 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 an injection moulded article.