US 12,351,670 B2
Modifications of sulfated bentonites and uses thereof in metallocene catalyst systems for olefin polymerization
Max P. McDaniel, Bartlesville, OK (US); Qing Yang, Bartlesville, OK (US); Ryan N. Rose, Caney, KS (US); Kathy S. Clear, Bartlesville, OK (US); Graham R. Lief, Bartlesville, OK (US); Eric D. Schwerdtfeger, Bartlesville, OK (US); Anand Ramanathan, Bartlesville, OK (US); Jeremy M. Praetorius, Bartlesville, OK (US); and Connor D. Boxell, 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 Apr. 29, 2024, as Appl. No. 18/648,551.
Application 18/648,551 is a division of application No. 18/065,003, filed on Dec. 13, 2022, granted, now 11,999,814.
Claims priority of provisional application 63/290,088, filed on Dec. 16, 2021.
Prior Publication US 2024/0279366 A1, Aug. 22, 2024
Int. Cl. C08F 4/02 (2006.01); C08F 4/659 (2006.01); C08F 4/6592 (2006.01); C08F 210/02 (2006.01)
CPC C08F 4/025 (2013.01) [C08F 4/02 (2013.01); C08F 4/65916 (2013.01); C08F 4/65925 (2013.01); C08F 4/65927 (2013.01); C08F 210/02 (2013.01); C08F 2420/01 (2013.01); C08F 2420/03 (2013.01)] 12 Claims
 
1. A sulfated bentonite composition characterized by:
a d50 average particle size from 15 to 50 μm;
a ratio of d90/d10 from 3 to 15; and
wherein the composition contains from 25 to 35 wt. % silicon.