POLYETHYLENE COMPOSITION SUITABLE FOR PIPE APPLICATIONS
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Mar 11, 2016
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Apr 27, 2015
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Abstract
The present invention relates to a polyethylene composition comprising —a base resin comprising (A) a first ethylene homo- or copolymer component having a melt flow rate MFR2 (2.16 kg, 190° C.) of equal to or more than 130 g/10 min to equal to or less than 300 g/10 min, determined according to ISO 1133, and (B) a second ethylene homo- or copolymer component, —optional carbon black, —optional further polymer component(s) different to the first ethylene homo- or copolymer components (A) and (B), and —optional additive(s); wherein the first ethylene homo- or copolymer component (A) has a lower weight average molecular weight as the second ethylene homo- or copolymer component (B); the polyethylene composition has a melt flow rate MFR5 (5 kg, 190° C.) of more than 0.60 g/10 min to less than 1.00 g/10 min, determined according to ISO 1133, and a shear thinning index SHI2.7/210 of equal to or more than 10 to equal to or less than 27. The invention further relates to a process for the production of such a polyethylene composition, an article, such as a pipe or pipe fitting comprising such a polyethylene composition and the use of such a polyethylene composition for the production of such an article.
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