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US 2022/0033546 A1Published application
Tetra-functional long-chain branched ethylene-based polymers
AssigneeDow Global Technologies LLC
InventorsDaniel J. Arriola, Robert D.J. Froese, Teresita Kashyap
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Abstract
Ethylene-based polymers of this disclosure include an average g′ less than 0.86, where the average g′ is an intrinsic viscosity ratio determined by gel permeation chromatography using a triple detector; and a 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.
Claims19
An ethylene-based polymer comprising:
- an average g′ less than 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.
An ethylene-based polymer comprising:
- a melt strength of greater than 6 cN (Rheotens device, 190° C., 2.4 mm/s2, 120 mm from the die exit to the center of the wheels, extrusion rate of 38.2 s−1, capillary die of 30 mm length, 2 mm diameter and 180° entrance angle);
- 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.
Dependencies are inferred from the claim text.