US 12,338,311 B2
Ziegler-Natta catalysts for olefin polymerization
Victor Sumerin, Porvoo (FI); and Georgy Kipiani, Porvoo (FI)
Assigned to Borealis AG, Vienna (AT)
Appl. No. 17/764,233
Filed by Borealis AG, Vienna (AT)
PCT Filed Oct. 1, 2020, PCT No. PCT/EP2020/077473
§ 371(c)(1), (2) Date Mar. 28, 2022,
PCT Pub. No. WO2021/064081, PCT Pub. Date Apr. 8, 2021.
Claims priority of provisional application 62/910,523, filed on Oct. 4, 2019.
Claims priority of application No. 19201405 (EP), filed on Oct. 4, 2019.
Prior Publication US 2022/0411543 A1, Dec. 29, 2022
Int. Cl. C08F 4/649 (2006.01); C08F 210/16 (2006.01)
CPC C08F 4/6494 (2013.01) [C08F 210/16 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A Ziegler-Natta catalyst component for olefin polymerization, comprising:
(i) an internal donor selected from compounds of formula (I)

OG Complex Work Unit Chemistry
wherein
R1 is selected from a group consisting of H, a linear or branched C1-7-alkyl, CH2OR2 and oxygen-containing heterocyclic ring; and R2 is selected from a group consisting of a linear or branched or cyclic C1-8-alkyl group.