POLYETHYLENE PIPE RESINS AND PRODUCTION THEREOF

A polyethylene resin comprising from 35 to 49 wt% of a first polyethylene fraction of high molecular weight and from 51 to 65 wt% of a second polyethylene fraction of low molecular weight, the first polyethylene fraction comprising a linear low density polyethylene having a density of up to 0.930 g/...

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Bibliographic Details
Main Authors SIBERDT FABIAN, DUPIRE MARC, COSTA JEAN-LOUIS, DAMME ERIC, MISERQUE OLIVIER, BETTONVILLE SERGE, MICHEL JACQUES, ROUYER VIRGIL
Format Patent
LanguageEnglish
Polish
Published 29.05.2009
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
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Summary:A polyethylene resin comprising from 35 to 49 wt% of a first polyethylene fraction of high molecular weight and from 51 to 65 wt% of a second polyethylene fraction of low molecular weight, the first polyethylene fraction comprising a linear low density polyethylene having a density of up to 0.930 g/cm , and an HLMI of less than 0.6 g/10min and the second polyethylene fraction comprising a high density polyethylene having a density of at least 0.969 g/cm and an MI2 of greater than 10 g/10min, and the polyethylene resin, having a density of greater than 0.946 g/cm ,an HLMI of from 1 to 100 g/10min , a dynamical viscosity eta 0.01 , measured at 0.01 radians/second, greater than 200,000 Pa.s and a ratio of the dynamical viscosities measured at, respectively 0.01 and 1 radians/second eta 0.01/ eta 1 greater than 8.
Bibliography:Application Number: PL20010361623