MODIFIED POLYETHYLENE COMPOSITIONS AND METHOD FOR MAKING THE SAME
A method for increasing the melt strength and/or low shear viscosity of a polyethylene resin, the method comprising: a) providing a polyethylene composition comprising the reaction product of ethyleneand optionally, one or more alpha-olefin comonomers, wherein the polyethylene composition is charact...
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Main Authors | , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
22.05.2020
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Subjects | |
Online Access | Get full text |
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Summary: | A method for increasing the melt strength and/or low shear viscosity of a polyethylene resin, the method comprising: a) providing a polyethylene composition comprising the reaction product of ethyleneand optionally, one or more alpha-olefin comonomers, wherein the polyethylene composition is characterized by the following properties: a density ranging from 0.900 g/cm to 0.970 g/cm , a molecular weight distribution (Mw/Mn) ranging from 2.6 to 3.5, and from 0.10 to 0.27 vinyl groups per 1,000 total carbon atoms; b) providing a masterbatch composition comprising a free radical generator anda polyethylene resin, wherein the free radical generator has a half-life at 220C of less than 200 seconds, and a decomposition energy higher than -250 kJ/mol, and wherein the polyethylene resin has adensity ranging from 0.900 g/cm3 to 0.970 g/cm , melt index ranging from 0.01 g/10 min to 100 g/10 min; and c) reacting the polyethylene composition with the masterbatch composition to form a modified polyethylene composition.
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Bibliography: | Application Number: CN201880060297 |