US 11,680,117 B2
Polyethylenes and processes for producing polyethylenes
Haiqing Peng, Sugar Land, TX (US); Henri A. Lammens, Antwerp (BE); Timothy S. McCracken, Beaumont, TX (US); and Arthur G. Voepel, Beaumont, TX (US)
Assigned to ExxonMobil Chemical Patents Inc., Baytown, TX (US)
Filed by ExxonMobil Chemical Patents Inc., Baytown, TX (US)
Filed on Apr. 6, 2021, as Appl. No. 17/223,556.
Claims priority of provisional application 63/010,839, filed on Apr. 16, 2020.
Prior Publication US 2021/0324117 A1, Oct. 21, 2021
Int. Cl. C08F 110/02 (2006.01); B29C 39/02 (2006.01); B29C 39/10 (2006.01); B29C 39/00 (2006.01); B29K 23/00 (2006.01)
CPC C08F 110/02 (2013.01) [B29C 39/003 (2013.01); B29C 39/025 (2013.01); B29C 39/10 (2013.01); B29K 2023/0608 (2013.01)] 4 Claims
 
1. A polyethylene having:
(a) a density of from about 0.91 g/cm3 to about 0.94 g/cm3;
(b) an Mn value of about 12,000 g/mol to about 17,000 g/mol;
(c) an Mw value of about 140,000 g/mol to about 230,000 g/mol;
(d) a value of Mz of from about 2,000,000 g/mol to about 3,000,000 g/mol;
(e) a ratio of Mz to Mw of about 10 to about 18;
(f) a melt index (I2) from about 3 g/10 min to about 15 g/10 min, when measured according to ASTM D1238 procedure B (190° C., 2.16 kg); and
(g) a zero shear viscosity of about 10,000 Pa*s or less.