US 11,814,455 B2
Peroxide treated blow molding polymers with increased weight swell and constant die swell
Carlos A. Cruz, Kingwood, TX (US); Yongwoo Inn, Bartlesville, OK (US); John R. Rathman, Bartlesville, OK (US); Youlu Yu, Bartlesville, OK (US); Ashish M. Sukhadia, Bartlesville, OK (US); and Jay M. Chaffin, Bartlesville, OK (US)
Assigned to Chevron Phillips Chemical Company LP, The Woodlands, TX (US)
Filed by Chevron Phillips Chemical Company LP, The Woodlands, TX (US)
Filed on Sep. 27, 2022, as Appl. No. 17/935,612.
Application 17/935,612 is a continuation of application No. 17/200,976, filed on Mar. 15, 2021, granted, now 11,505,630.
Prior Publication US 2023/0019739 A1, Jan. 19, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C08F 210/02 (2006.01); C08F 210/16 (2006.01); C08K 5/14 (2006.01); C08F 10/02 (2006.01)
CPC C08F 210/02 (2013.01) [C08K 5/14 (2013.01); C08F 10/02 (2013.01); C08F 210/16 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An ethylene polymer having:
a density in a range from 0.945 to 0.965 g/cm3;
a HLMI in a range from 1 to 12 g/10 min;
a Mw in a range from 200,000 to 550,000 g/mol;
a Mn in a range from 18,000 to 48,000 g/mol;
a CY-a parameter in a range from 0.01 to 0.12;
a tan δ at 0.1 sec−1 in a range from 0.5 to 0.9 degrees;
a tan δ at 100 sec−1 in a range from 0.5 to 0.75 degrees; and
a viscosity at 0.001 sec−1 in a range from 1.3×106 to 1×107 Pa-sec;
wherein the ethylene polymer comprises an ethylene/1-butene copolymer, an ethylene/1-hexene copolymer, an ethylene/1-octene copolymer, an ethylene homopolymer, or a combination thereof.