POLYETHYLENE HOMO- OR COPOLYMER HAVING IMPROVED WEAR PROPERTIES

POLYETHYLENE HOMO- OR COPOLYMER HAVING IMPROVED WEAR PROPERTIES

The present invention relates to a polyethylene homo- or copolymer having improved wear properties. In particular, the invention relates to an ultra-high molecular weight polyethylene having improved wear properties prepared using a heterogeneous Ziegler catalyst system. Said polyethylene homo- or c...

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Hauptverfasser: FRIEDERICHS, Nicolaas Hendrika, VAN KESSEL, Matthijs, GERRITS, Niclasina Siberta Johanna Alberdina
Format: Patent
Sprache:eng ; fre ; ger
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CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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creator FRIEDERICHS, Nicolaas Hendrika
VAN KESSEL, Matthijs
GERRITS, Niclasina Siberta Johanna Alberdina
description The present invention relates to a polyethylene homo- or copolymer having improved wear properties. In particular, the invention relates to an ultra-high molecular weight polyethylene having improved wear properties prepared using a heterogeneous Ziegler catalyst system. Said polyethylene homo- or copolymer is characterized in that the abrasion index of said polyethylene is related to the elongational stress according to the formula (I): in which ES = elongational stress as measured according to ISO 11542-2:1998 AI = abrasion index, as measured according to ISO 15527:2010 where the reference material according to ISO 15527:2010 is set to 100; β < 1.8; and -0.015 < a < -0.017.
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subjects CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
title POLYETHYLENE HOMO- OR COPOLYMER HAVING IMPROVED WEAR PROPERTIES
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