US 12,319,772 B2
Catalysts
Luigi Maria Cristoforo Resconi, Linz (AT); Simon Schwarzenberger, Linz (AT); Ville Virkkunen, Porvoo (FI); Alexander Reznichenko, Helsinki (FI); Vyatcheslav V. Izmer, Moscow (RU); Dmitry S. Kononovich, Moscow (RU); and Alexander Z. Voskoboynikov, Moscow (RU)
Assigned to BOREALIS AG, Vienna (AT)
Appl. No. 17/763,283
Filed by BOREALIS AG, Vienna (AT)
PCT Filed Sep. 25, 2020, PCT No. PCT/EP2020/076897
§ 371(c)(1), (2) Date Mar. 24, 2022,
PCT Pub. No. WO2021/058740, PCT Pub. Date Apr. 1, 2021.
Claims priority of application No. 19199696 (EP), filed on Sep. 25, 2019; and application No. 19211662 (EP), filed on Nov. 26, 2019.
Prior Publication US 2022/0356274 A1, Nov. 10, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. C07F 17/00 (2006.01); C08F 4/02 (2006.01); C08F 4/649 (2006.01); C08F 4/6592 (2006.01); C08F 10/06 (2006.01); C08F 110/06 (2006.01); C08F 210/06 (2006.01); C08F 210/16 (2006.01); C08L 23/14 (2006.01)
CPC C08F 4/6498 (2013.01) [C07F 17/00 (2013.01); C08F 4/02 (2013.01); C08F 4/65927 (2013.01); C08F 10/06 (2013.01); C08F 210/06 (2013.01); C08L 23/142 (2013.01); C08F 2420/07 (2021.01); C08F 2420/10 (2021.01); C08F 2800/20 (2013.01); C08L 2205/025 (2013.01)] 13 Claims
 
1. A metallocene complex of formula (I):

OG Complex Work Unit Chemistry
wherein
each X is a sigma-ligand;
in the group R2Si— at least one R is methyl or ethyl, and the other R is selected from methyl, ethyl, n-propyl, isopropyl, n-butyl or isobutyl, pentyl, hexyl, cyclohexyl and phenyl;
each R1 independently is a CH2—R7 group, with R7 being H or linear or branched C1-6-alkyl group, C3-8 cycloalkyl group, or C6-10 aryl group;
each R2 is independently a —CH═, —CY═, —CH2—, —CHY— or —CY2— group, wherein Y is a C1-6 hydrocarbyl group and where n is 2-6;
each R3 and R4 independently is hydrogen, a linear or branched C1-6-alkyl group, a C7-20 arylalkyl, C7-20 alkylaryl group, C6-20 aryl group, or an —OY group, wherein Y is a is a C1-6 hydrocarbyl group;
R5 is a linear or branched C1-6-alkyl group, C7-20 arylalkyl, C7-20 alkylaryl group or C6-20-aryl group; and
R6 is a C(R8)3 group, with each R8 being independently a linear or branched C1-6 alkyl group;
(A) wherein at least one R3 per phenyl group and at least one R4 is not hydrogen, and wherein at least one R3 per phenyl group and at least one R4 is hydrogen; or
(B) wherein one R3 is an —OY group, wherein Y is a is a C1-6 hydrocarbyl group, in 4 position of each phenyl group and the two other R3 groups are tert-butyl groups; and/or
(C) wherein one R4 is an —OY group, wherein Y is a is a C1-6 hydrocarbyl group, in 4-position of the phenyl ring and the two other R4 groups are tert-butyl groups.