US 12,454,589 B2
Polyethylene compositions and films including polyethylene compositions
Peter Hermann Roland Sandkuehler, Horgen (CH); Sanjib Biswas, Lake Jackson, TX (US); David T. Gillespie, Pearland, TX (US); Mehmet Demirors, Pearland, TX (US); and Michael J. Zogg, Jr., Lake Jackson, TX (US)
Assigned to Dow Global Technologies LLC, Midland, MI (US)
Appl. No. 18/003,599
Filed by Dow Global Technologies LLC, Midland, MI (US)
PCT Filed Feb. 5, 2021, PCT No. PCT/US2021/016815
§ 371(c)(1), (2) Date Dec. 28, 2022,
PCT Pub. No. WO2022/005533, PCT Pub. Date Jan. 6, 2022.
Claims priority of provisional application 63/046,386, filed on Jun. 30, 2020.
Prior Publication US 2023/0312787 A1, Oct. 5, 2023
Int. Cl. C08F 210/16 (2006.01); C08F 2/00 (2006.01); C08F 2/01 (2006.01); C08J 5/18 (2006.01)
CPC C08F 210/16 (2013.01) [C08F 2/001 (2013.01); C08F 2/01 (2013.01); C08J 5/18 (2013.01); C08J 2323/08 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A polyethylene composition comprising:
a first polyethylene fraction area in the temperature range from 45° C. to 80° C. of an elution profile via improved comonomer composition distribution (iCCD) analysis method;
a second polyethylene fraction area in the temperature range from 80° C. to 95° C. of the elution profile via iCCD analysis method, wherein the second polyethylene fraction area comprises at least 5% of the total area of the elution profile;
a third polyethylene fraction area in the temperature range from 95° C. to 120° C. of the elution profile via iCCD analysis method, wherein the third polyethylene fraction area comprises at least 25% of the total area of the elution profile;
wherein:
a ratio of the first polyethylene fraction area to the second polyethylene fraction area is from 6 to 15; and
the polyethylene composition has a density of 0.910 g/cm3 to 0.924 g/cm3 and a melt index (I2) of 0.1 g/10 minutes to 0.5 g/10 minutes.