公开(公告)号：US20220325009A1

公开(公告)日：2022-10-13

申请号：US17847363

申请日：2022-06-23

Applicant: BOREALIS AG

Inventor： Noureddine AJELLAL ,  Anna FAIT ,  Luigi RESCONI ,  Vyatcheslav IZMER ,  Dmitry KONONOVICH ,  Alexander VOSKOBOYNIKOV ,  Rafael SABLONG ,  Timo SCIARONE

IPC: C08F4/6592 ,  C08F2/06 ,  C08F210/16

Abstract: Catalyst system for producing ethylene copolymers in a high temperature solution process, the catalyst system comprising
(i) a metallocene complex of formula (I) M is Hf or a mixture with Zr, provided that more than 50% by moles of the complex of Formula I has M=Hf X is a sigma ligand R are the same or different from each other and can be saturated linear or branched C1-C10 alkyl, C5-C10 aryl, C6-C20 alkylaryl or C6-C20 arylalkyl groups, which can optionally contain up to 2 heteroatoms or silicon atoms R1 is a C6-C20-aryl, which can be unsubstituted or substituted by one or up to 5 linear or branched C1-C10 alkyl group(s) R2 is a saturated linear or cyclic C3-C20 alkyl group or a branched CR3R4R5 group, wherein R3 is hydrogen or an C1-C20 alkyl group and R4 and R5 are the same or are different and can be an C1-C20 alkyl group and (ii) a boron containing cocatalyst.

公开(公告)号：US20210108006A1

公开(公告)日：2021-04-15

申请号：US16499509

申请日：2018-03-28

Applicant: BOREALIS AG

Inventor： Anna FAIT ,  Noureddine AJELLAL ,  Luigi Maria Cristoforo RESCONI ,  Vyatcheslav V. IZMER ,  Dmitry S. KONONOVICH ,  Oleg SAMSONOV ,  Alexander Z. VOSKOBOYNIKOV ,  Rafael SABLONG ,  Timo SCIARONE

IPC: C08F4/6592 ,  C08F210/16 ,  C08F4/659

Abstract: Catalyst system, the catalyst system comprising (i) at least one metallocene complex of formula (I), (I) wherein Mt1 is Hf, X is a sigma-donor ligand, R1, R2, R3 are the same or different from each other and can be hydrogen or a saturated linear or branched C1-C10 alkyl, whereby the alkyl group can optionally contain up to 2 heteroatoms belonging to groups 14-16 of the periodic table, or R1 and R2 or R2 and R3 can form a ring having 4 to 6 C-atoms and 1 to 3 double bonds, R4 and R5 are the same or different from each other and can be saturated linear or branched C1-C10 alkyl, C5-C10 aryl, C6-C20 alkylaryl or C6-C20 arylalkyl groups, which can optionally contain up to 2 heteroatoms belonging to groups 14-16 of the periodic table, n can be 1 to 5, Ar is a C6-C20-aryl or -heteroarylgroup, which can be unsubstituted or substituted by 1 to 5 linear or branched C1-C10 alkyl group(s), and (ii) a boron containing cocatalyst.

公开(公告)号：US20220185923A1

公开(公告)日：2022-06-16

申请号：US17603090

申请日：2020-04-09

Applicant: BOREALIS AG

Inventor： Luigi Maria Cristoforo RESCONI ,  Anna FAIT ,  Rafael SABLONG ,  Vyatcheslav V. IZMER ,  Dmitry S. KONONOVICH ,  Alexander Z. VOSKOBOYNIKOV

IPC: C08F210/16 ,  C07F17/00

Abstract: The present invention relates to a catalyst system for producing ethylene copolymers in a high temperature solution process, the catalyst system comprising (i) a metallocene complex of a group 4 transition metal comprising at least one ligand selected from optionally substituted cyclopentadienyl (Cp), indenyl (Ind) and fluorenyl (Flu) ligands and (ii) a solid alkyl aluminium oxide cocatalyst The invention relates also to the preparation of the catalyst system, use thereof in the high temperature solution process and to a process comprising polymerizing ethylene and a C4-10 alpha-olefin comonomer in a high temperature solution process in the presence of the catalyst system.

公开(公告)号：US20200079884A1

公开(公告)日：2020-03-12

申请号：US16469616

申请日：2017-12-12

Applicant: BOREALIS AG

Inventor： Noureddine AJELLAL ,  Anna FAIT ,  Luigi RESCONI ,  Vyatcheslav V. IZMER ,  Dmitry S. KONONOVICH ,  Alexander Z. VOSKOBOYNIKOV ,  Rafael SABLONG ,  Timo SCIARONE

IPC: C08F4/6592 ,  C08F210/16 ,  C08F2/06

Abstract: Catalyst system for producing ethylene copolymers in a high temperature solution process, the catalyst system comprising (i) a metallocene complex of formula (I), M is Hf or a mixture with Zr, provided that more than 50% by moles of the complex of Formula I has M=Hf, X is a sigma ligand, R are the same or different from each other and can be saturated linear or branched C1-C10 alkyl, C5-C10 aryl, C6-C20 alkylaryl or C6-C20 arylalkyl groups, which can optionally contain up to 2 heteroatoms or silicon atoms, R1 is a C6-C20-aryl, which can be unsubstituted or substituted by one or up to 5 linear or branched C1-C10 alkyl group(s), R2 is a saturated linear or cyclic C3-C20 alkyl group or a branched CR3R4R5 group, wherein R3 is hydrogen or an C1-C20 alkyl group and R4 and R5 are the same or are different and can be an C1-C20 alkyl group and (ii) a boron containing cocatalyst