公开(公告)号：US20160200838A1

公开(公告)日：2016-07-14

申请号：US14914501

申请日：2014-10-22

Applicant: BOREALIS AG

Inventor： Alexander REZNICHENKO ,  Noureddine AJELLAL ,  Pascal CASTRO ,  Irfan SAEED

IPC: C08F4/6592

CPC classification number: C08F10/00 ,  C08F4/649 ,  C08F4/65912 ,  C08F4/6592 ,  C08F4/65925 ,  C08F4/65927 ,  C08F2410/01 ,  C08F10/06 ,  C08F110/06 ,  C08F2500/12 ,  C08F210/16 ,  C08F210/14 ,  C08F110/02 ,  C08F2500/01

Abstract: Process for the preparation of a solid catalyst system comprising the steps of preparing a liquid clathrate comprising a mixing of an aluminoxane, an aromatic compound and an organo-silicon compound, wherein the mol-ratio between the organo-silicon compound and aluminum of the aluminoxane is below 0.1, mixing said liquid clathrate with an organometallic compound obtaining a liquid mixture, and precipitating the solid catalyst system out of said liquid mixture by adding a saturated aliphatic compound to said mixture liquid.

Abstract translation: 制备固体催化剂体系的方法，包括以下步骤：制备包含铝氧烷，芳族化合物和有机硅化合物的混合物的液体包合物，其中有机硅化合物与铝氧烷铝的摩尔比 将所述液体包合物与有机金属化合物混合，得到液体混合物，并通过向所述混合液中加入饱和脂肪族化合物将所述固体催化剂体系从所述液体混合物中沉淀出来。

公开(公告)号：US20210340289A1

公开(公告)日：2021-11-04

申请号：US17261317

申请日：2019-07-18

Applicant: BOREALIS AG

Inventor： Irfan SAEED ,  Esa KOKKO ,  Mika SALO ,  Sanjay RASTOGI ,  Dario ROMANO ,  Sara RONCA

IPC: C08F4/649 ,  C08F110/02 ,  C08L23/06 ,  C08F4/02 ,  C08F4/654 ,  C08F4/655

Abstract: A process for the preparation of an ultra-high molecular weight ethylene homopolymer having a MFR21 of 0.01 g/10 min or less, said process comprising: (I) prepolymerising at least ethylene at a temperature of 0 to 90° C. in the presence of a heterogeneous Ziegler Natta catalyst to prepare an ethylene prepolymer having an Mw of 40,000 to 600,000 g/mol; and thereafter in the presence of the prepolymer and said catalyst; (II) polymerising ethylene at a temperature of 55° C. or less, such as 20 to 55° C., to prepare said UHMW ethylene homopolymer; wherein the UHMW ethylene homopolymer comprises up to 8 wt. % of said prepolymer.

公开(公告)号：US20240294682A1

公开(公告)日：2024-09-05

申请号：US18573575

申请日：2022-06-23

Applicant: BOREALIS AG

Inventor： Pascal CASTRO ,  Vasileios KANELLOPOULOS ,  Georgy KIPIANI ,  Marja MUSTONEN ,  Irfan SAEED

IPC: C08F210/16 ,  C08F2/00 ,  C08F2/34 ,  C08F4/659 ,  C08F4/6592

CPC classification number: C08F210/16 ,  C08F2/001 ,  C08F2/34 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/65927 ,  C08F2420/07

Abstract: The disclosure relates to a process for polymerising olefins, the process comprising polymerising ethylene, optionally in the presence of at least one other alpha olefin comonomer, preferably C4-C10 alpha olefin comonomer, preferably in multi stage polymerisation process configuration, in the presence of a single-site polymerisation catalyst to produce a polymer component to produce a polyethylene polymer or a polyethylene copolymer, wherein the single-site polymerisation catalyst comprises (i) a transition metal complex; (ii) a cocatalyst; and optionally (iii) a support; and is characterised by a (Weibull modulus)×(scale parameter) product equal to or higher than 40 MPa and a (Weibull modulus)/(scale parameter) ratio equal to or lower than 0.50 MPa−1 wherein the Weibull modulus and the scale parameter are determined by the Weibull analysis of the compressive strength of the catalyst particles. The disclosure further relates to a single-site polymerisation catalyst, comprising (i) a transition metal complex; (ii) a cocatalyst; and optionally (iii) a support, preferably a silica support; wherein the single-site polymerisation catalyst is characterised by a (Weibull modulus)×(scale parameter) product equal to or higher than 40 MPa and a (Weibull modulus)/(scale parameter) ratio equal to or lower than 0.50 MPa−1 wherein the Weibull modulus and the scale parameter are determined by the Weibull analysis of the compressive strength of the catalyst particles. The disclosure further relates to use of the single-site polymerisation catalyst in the preparation of a polyethylene polymer component, a polyethylene polymer, or a polyethylene copolymer.

公开(公告)号：US20240294681A1

公开(公告)日：2024-09-05

申请号：US18572405

申请日：2022-06-23

Applicant: BOREALIS AG

Inventor： Vasileios KANELLOPOULOS ,  Joana Elvira KETTNER ,  Matthias HOFF ,  Apostolos KRALLIS ,  Victor SUMERIN ,  Jani AHO ,  Kalle KALLIO ,  Irfan SAEED ,  Erno ELOVAINIO

IPC: C08F210/16 ,  C08F2/00 ,  C08F2/01 ,  C08F2/34 ,  C08F2/38 ,  C08F4/6592

CPC classification number: C08F210/16 ,  C08F2/001 ,  C08F2/01 ,  C08F2/34 ,  C08F2/38 ,  C08F4/6592

Abstract: The disclosure relates to a process for polymerising olefins in multi stage polymerisation process configuration, the process comprising a) polymerising in a first polymerisation step first olefin monomer, optionally in the presence of at least one other alpha olefin comonomer, in the presence of a metallocene polymerisation catalyst so as to form a first polymer component (A); and b) transferring the first polymer component (A) into a separation unit to remove low molecule penetrants and to obtain separated solid polyolefin particles of the first polymer component (A*) and c) polymerising in in gas phase in a second polymerisation step second olefin monomer, optionally in the presence of at least one other alpha olefin comonomer in the presence of the separated solid polyolefin particles (A*) of step b), so as to form a second polymer component (B). The disclosure further relates to a method for improving performance of a metallocene polymerisation catalyst in a multi-stage olefin polymerisation, wherein a first polymer component (A) produced in a first polymerisation step is transferred into a separation unit to remove low molecule penetrants and to obtain separated solid polyolefin particles of the first polymer component (A*) prior to transferring the obtained separated solid polyolefin particles of the first polymer component (A*) to a further polymerisation step.

公开(公告)号：US20230322969A1

公开(公告)日：2023-10-12

申请号：US18111025

申请日：2023-02-17

Applicant: BOREALIS AG

Inventor： Irfan SAEED ,  Esa KOKKO ,  Mika SALO ,  Sanjay RASTOGI ,  Dario ROMANO ,  Sara RONCA

IPC: C08F110/02 ,  C08F2/00 ,  C08L23/06

CPC classification number: C08F110/02 ,  C08F2/001 ,  C08L23/06 ,  C08F2500/34 ,  C08F2500/35 ,  C08L2207/068 ,  C08L2314/02

Abstract: A process for the preparation of an ultra-high molecular weight ethylene homopolymer having a MFR21 of 0.01 g/10 min or less, said process comprising:

(I) prepolymerising at least ethylene at a temperature of 0 to 90° C. in the presence of a heterogeneous Ziegler Natta catalyst to prepare an ethylene prepolymer having an Mw of 40,000 to 600,000 g/mol; and thereafter in the presence of the prepolymer and said catalyst;
(II) polymerising ethylene at a temperature of 55° C. or less, such as 20 to 55° C., to prepare said UHMW ethylene homopolymer; wherein the UHMW ethylene homopolymer comprises up to 8 wt.% of said prepolymer.

公开(公告)号：US20240317901A1

公开(公告)日：2024-09-26

申请号：US18572410

申请日：2022-06-23

Applicant: BOREALIS AG

Inventor： Victor SUMERIN ,  Vasileios KANELLOPOULOS ,  Jani AHO ,  Matthias HOFF ,  Joana Elvira KETTNER ,  Irfan SAEED ,  Kalle KALLIO ,  Apostolos KRALLIS

IPC: C08F2/00 ,  C08F2/34 ,  C08F4/659 ,  C08F210/16

CPC classification number: C08F2/001 ,  C08F2/34 ,  C08F4/65912 ,  C08F210/16 ,  C08F2400/02

Abstract: The disclosure relates to a process for polymerising olefins in multi stage polymerisation process configuration, the process comprising a) polymerising in a first polymerisation step ethylene, optionally in the presence of at least one other alpha olefin comonomer, in the presence of a polymerisation catalyst so as to form a first polymer component (A); and b) polymerising in a second polymerisation step in gas phase a predetermined monomer mixture comprising ethylene and 1-hexene, optionally in the presence of at least one other alpha olefin comonomer, in the presence of the first polymer component (A) of step a), so as to form a second polymer component (B), wherein the multimodal polyethylene polymer produced by the present process comprises 1-hexene comonomer and at least one further C4-10-comonomer, and wherein the predetermined monomer mixture comprising ethylene and 1-hexene is fed into the second polymerisation step from the beginning of its start up. The disclosure further relates to use of 1-hexene in a gas phase olefin polymerisation step for improving performance of single-site polymerisation catalyst in multi-stage olefin copolymerisation process. The disclosure still further relates to a method for improving performance of single-site polymerisation catalyst in a multi-stage olefin polymerisation comprising feeding a predetermined monomer mixture comprising ethylene and 1-hexene into the gas phase polymerisation step from the beginning of its start up.

公开(公告)号：US20240301104A1

公开(公告)日：2024-09-12

申请号：US18572402

申请日：2022-06-23

Applicant: BOREALIS AG

Inventor： Matthias HOFF ,  Joana Elvira KETTNER ,  Vasileios KANELLOPOULOS ,  Victor SUMERIN ,  Jani AHO ,  Apostolos KRALLIS ,  Kalle KALLIO ,  Irfan SAEED ,  Erno ELOVAINIO

IPC: C08F210/16 ,  C08L23/08

CPC classification number: C08F210/16 ,  C08L23/0815 ,  C08L2205/025 ,  C08L2308/00

Abstract: The disclosure relates to a process for polymerising olefins in multi stage polymerisation process configuration, comprising a) polymerising in a first polymerisation step first olefin monomer, optionally in the presence of at least one other alpha olefin monomer, in the presence of a polymerisation catalyst so as to form a first polymer component (A), and b) polymerising in a second polymerisation step in gas phase second olefin monomer, optionally in the presence of at least one other alpha olefin comonomer, in the presence of the first polymer component (A) of step a) and an induced swelling agent, so as to for a second polymer component (B), wherein the first polymer component (A) and the second polymer component (B) are produced at production rates meeting a predetermined target weight ratio of the second polymer component (B) to the first polymer component (A), the process comprising the steps of: i) determining a first weight ratio of the second polymer component (B) to the first polymer component (A) in the second polymerisation step, and ii) increasing the concentration of the induced swelling agent in the second polymerisation step if the determined first weight ratio is less than the predetermined target weight ratio, or iii) decreasing the concentration of the induced swelling agent in the second polymerisation step if the determined first weight ratio is greater than the predetermined target weight ratio, or iv) maintaining the concentration of the induced swelling agent in the second polymerisation step if the determined first weight ratio equals the predetermined target weight ratio. The disclosure further relates to use of an induced swelling agent in a gas phase polymerisation step for improving gas phase production split in a multi-stage olefin polymerisation process.

公开(公告)号：US20240002560A1

公开(公告)日：2024-01-04

申请号：US18017439

申请日：2021-07-23

Applicant: BOREALIS AG

Inventor： Georgy KIPIANI ,  Jyrki KAUHANEN ,  Felice DE SANTIS ,  Marja MUSTONEN ,  Matthias HOFF ,  Kalin SIMEONOV ,  Kimmo HAKALA ,  Jarkko HASSINEN ,  Maria RANIERI ,  Esko SAIKKONEN ,  Tiina HÄMÄLÄINEN ,  Stefan POLLHAMMER ,  Pascal CASTRO ,  Irfan SAEED ,  Kalle KALLIO

IPC: C08F210/16

CPC classification number: C08F210/16 ,  C08F2420/07

Abstract: The invention provides a process for the preparation of a multimodal ethylene polymer in a multistage process in the presence of a catalyst comprising a complex of formula (lx) wherein each X is a sigma donor ligand; each Het is independently a monocyclic or multicyclic heteroaromatic or heterocyclic group containing at least one heteroatom selected from O, N or S; L is a carbon, silicon or germanium based divalent bridge in which one or two backbone atoms link the ligands; M is Ti, Zr or Hf; each R1 is the same or different and is a linear CMO alkyl group, or linear CHO alkoxy, each n is 0 to 3; each R2 is the same or different and is a C1-10 alkyl group, C1-10 alkoxy group or —Si(R)3 group; each R is the same or different and is C1-10 alkyl or phenyl group optionally substituted by 1 to 3 C1-6 alkyl groups; and eachp is 0 to 3;

公开(公告)号：US20210095057A1

公开(公告)日：2021-04-01

申请号：US16499514

申请日：2018-03-28

Applicant: BOREALIS AG

Inventor： Luigi Maria Cristoforo RESCONI ,  Noureddine AJELLAL ,  Anna FAIT ,  Irfan SAEED ,  Maria RANIERI ,  David QUIN ,  Vyatcheslav V. IZMER ,  Dmitry S. KONONOVICH ,  Oleg SAMSONOV ,  Alexander Z. VOSKOBOYNIKOV

IPC: C08F4/6592 ,  C08F4/642 ,  C08F210/16

Abstract: Catalyst system, the catalyst system comprising (i) at least one metallocene complex of formula (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 -heteroaryl group, which can be unsubstituted or substituted by 1 to 5 linear or branched C1-C10 alkyl group(s), and (ii) an aluminoxane cocatalyst and (iii) optionally an aluminium alkyl compound AI(R7)3, with R7 being a linear or branched C2-C8-alkyl group.