MULTIMODAL POLYETHYLENE COMPOSITION FOR THE PRODUCTION OF PIPES WITH IMPROVED SLOW CRACK GROWTH RESISTANCE

The present invention relates to a polyethylene composition comprising a base resin having a density of more than 950 kg/m 3 and equal to or less than 965 kg/m 3 , determined according to ISO 1183-1:2004, and wherein the composition has a melt flow rate MFR 5 (190°C, 5 kg) of equal to or less than 0...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	ERIKSSON, VIRGINIE, NYMARK, ANDERS, BURYAK, ANDREY, BÄCKMAN, MATS, PALMLÖF, MAGNUS
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THEIR PREPARATION OR CHEMICAL WORKING-UP THERMAL INSULATION IN GENERAL WEAPONS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The present invention relates to a polyethylene composition comprising a base resin having a density of more than 950 kg/m 3 and equal to or less than 965 kg/m 3 , determined according to ISO 1183-1:2004, and wherein the composition has a melt flow rate MFR 5 (190°C, 5 kg) of equal to or less than 0.1 g/10 min, determined according to ISO 1133 and a polydispersity index Pl within the range of equal to or higher than 3.0 Pa -1 and equal to or less than 4.5 Pa -1 , a process for the production of said polyethylene composition, an article, suitably a pipe, comprising said polyethylene composition, and the use of said polyethylene composition according for the production of an article.