US 11,891,464 B2
Alkane-soluble non-metallocene precatalysts
Bethany M. Neilson, Manvel, TX (US); Roger L. Kuhlman, Lake Jackson, TX (US); Ian M. Munro, Lake Jackson, TX (US); and John F. Szul, Hurricane, WV (US)
Assigned to DOW GLOBAL TECHNOLOGIES LLC, Midland, MI (US)
Appl. No. 17/279,243
Filed by Dow Global Technologies LLC, Midland, MI (US)
PCT Filed Oct. 11, 2019, PCT No. PCT/US2019/055878
§ 371(c)(1), (2) Date Mar. 24, 2021,
PCT Pub. No. WO2020/096732, PCT Pub. Date May 14, 2020.
Claims priority of provisional application 62/756,237, filed on Nov. 6, 2018.
Prior Publication US 2022/0049032 A1, Feb. 17, 2022
Int. Cl. C08F 210/16 (2006.01); B01J 8/24 (2006.01); C07F 7/00 (2006.01)
CPC C08F 210/16 (2013.01) [B01J 8/24 (2013.01); C07F 7/003 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A compound of formula (1):

OG Complex Work Unit Chemistry
wherein M is Zr or Hf; one R independently is an unsubstituted or substituted quaternary-silahydrocarbyl group; and the other R is an unsubstituted or substituted quaternary-silahydrocarbyl group or an unsubstituted or substituted (aryl)alkyl group.