	US 12,240,964 B2
	Dual catalyst system for producing LLDPE and MDPE copolymers with long chain branching for film applications
Errun Ding, Mason, OH (US); Chung Ching Tso, Bartlesville, OK (US); Max P. McDaniel, Bartlesville, OK (US); Ashish M. Sukhadia, Bartlesville, OK (US); Youlu Yu, Bartlesville, OK (US); Randall S. Muninger, Dewey, OK (US); Aaron M. Osborn, Bartlesville, OK (US); and Christopher E. Wittner, 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 May 14, 2024, as Appl. No. 18/663,194.
Application 18/663,194 is a continuation of application No. 17/732,628, filed on Apr. 29, 2022, granted, now 12,031,022.
Application 17/732,628 is a continuation of application No. 16/837,009, filed on Apr. 1, 2020, granted, now 11,339,279, issued on May 24, 2022.
Prior Publication US 2024/0301185 A1, Sep. 12, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. C08F 4/659 (2006.01); C08F 4/64 (2006.01); C08F 4/6592 (2006.01); C08F 10/02 (2006.01); C08F 210/16 (2006.01); C08L 23/0807 (2025.01)

CPC C08L 23/0815 (2013.01) [C08F 4/65925 (2013.01); C08F 4/65927 (2013.01); C08F 210/16 (2013.01); C08F 4/65908 (2013.01); C08F 4/65912 (2013.01); C08F 2410/07 (2021.01); C08L 2203/16 (2013.01); C08L 2207/066 (2013.01)]

20 Claims

1. A catalyst composition comprising:

catalyst component I comprising a single atom bridged metallocene compound with an indenyl group and a cyclopentadienyl group;

catalyst component II comprising an unbridged hafnium metallocene compound with two cyclopentadienyl groups;

an activator; and

optionally, a co-catalyst.