Low density polyolefin resins with low molecular weight and high molecular weight components, and films made therefrom
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United States of America Patent
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Jan 26, 2021
Grant Date -
Feb 21, 2019
app pub date -
Oct 22, 2018
filing date -
Nov 6, 2013
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Abstract
Disclosed herein are ethylene-based polymers produced using dual metallocene catalyst systems. These polymers have low densities, high molecular weights, and broad molecular weight distributions, as well as having the majority of the long chain branches in the lower molecular weight component of the polymer, and the majority of the short chain branches in the higher molecular weight component of the polymer. Films produced from these polymers have improved impact and puncture resistance.
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