Impact Resistant LLDPE Composition and Films Made Thereof
AssigneeBasell Polyolefine GmbH
InventorsFabiana Fantinel, Gerd Mannebach, Shahram Mihan, Gerhardus Meier, Iakovos Vittorias
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Abstract
A novel PE material is devised showing excellent mechanical/optical properties and process ability, e.g. for film extrusion. The polyethylene of the invention is produced in one single e.g. gas phase reactor.
Claims43
A polyethylene comprising at least one C3-C20-olefine-comonomer polymerized to ethylene, wherein the polyethylene has a density <0.96 g/cm3, has a normalized shear thinning index SHI*(0.1 rad/s)<0.95 with SHI*(ω)=η*(ω)/η0 and wherein said polyethylene is at least bimodal in comonomer distribution and is comprises a high temperature peak weight fraction (% HT) and a low temperature peak weight fraction (% LT) as analyzed by CRYSTAF® and wherein the % LT is having a CDBI of >60%.
The blend according to claim 18, wherein the blend comprises from 20 to 99% of the first polyethylene according to claim 1 and 1 to 80% of a second polymer which is different from said first polyethylene and where the percentages by weight are based on the total mass of the polymer mixture.
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Dependencies are inferred from the claim text.