US 11,939,411 B2
Tetra-functional long-chain branched ethylene-based polymers
Daniel J. Arriola, Midland, MI (US); Robert D. J. Froese, Midland, MI (US); and Teresita Kashyap, Lake Jackson, TX (US)
Assigned to Dow Global Technologies LLC, Midland, MI (US)
Appl. No. 17/280,293
Filed by Dow Global Technologies LLC, Midland, MI (US)
PCT Filed Sep. 27, 2019, PCT No. PCT/US2019/053537
§ 371(c)(1), (2) Date Mar. 26, 2021,
PCT Pub. No. WO2020/069370, PCT Pub. Date Apr. 2, 2020.
Claims priority of provisional application 62/738,606, filed on Sep. 28, 2018.
Prior Publication US 2022/0033546 A1, Feb. 3, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. C08F 210/18 (2006.01)
CPC C08F 210/18 (2013.01) 19 Claims
 
1. An ethylene-based polymer comprising:
an average g′ less than or equal to 0.86, where the average g′ is an intrinsic viscosity ratio determined by gel permeation chromatography using a triple detector; and
a high molecular weight tail quantified by an MWD area metric, ATAIL, and ATAIL is less than or equal to 0.04 as determined by gel permeation chromatography using a triple detector.