公开(公告)号：US20210395474A1

公开(公告)日：2021-12-23

申请号：US17292062

申请日：2019-11-14

Applicant: BOREALIS AG

Inventor： Jingbo WANG ,  Markus GAHLEITNER ,  Klaus BERNREITNER ,  Pauli LESKINEN ,  Matthias HOFF

IPC: C08J5/18 ,  C08F297/08

Abstract: The invention provides a multimodal propylene butene random copolymer having a melt flow rate (MFR2) of 1.0 to 20.0 g/10 min and a butene content of 1.5 to 8.0 wt %, wherein said copolymer is prepared using a single site catalyst and wherein said copolymer comprises (i) 30 to 70 wt % of a propylene butene copolymer (A) having an MFR2 of 0.5 to 20.0 g/10 min and a butene content of 0.5 to 10.0 wt %; and (ii) 70 to 30 wt % of a propylene butene copolymer (B) having an MFR2 of 0.5 to 20.0 g/10 min and a butene content of 1.0 to 8.0 wt %; wherein copolymers (A) and (B) are different.

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：US20240287224A1

公开(公告)日：2024-08-29

申请号：US18572917

申请日：2022-06-23

Applicant: BOREALIS AG

Inventor： Qizheng DOU ,  Friedrich BERGER ,  Matthias HOFF

IPC: C08F210/16 ,  C08F4/64 ,  C08J5/18

CPC classification number: C08F210/16 ,  C08F4/64006 ,  C08J5/18 ,  C08F2420/07 ,  C08J2323/08

Abstract: The present disclosure relates to a metallocene-catalysed multimodal polyethylene copolymer, and to use of the multimodal copolymer of ethylene in film applications, and to a film including a polymer composition of the disclosure.

公开(公告)号：US20230227637A1

公开(公告)日：2023-07-20

申请号：US18017274

申请日：2021-07-23

Applicant: BOREALIS AG

Inventor： Felice DE SANTIS ,  Matthias HOFF ,  Kalin SIMEONOV ,  Davide TRANCHIDA ,  Martin NEUHEIMER ,  Stefan POLLHAMMER

IPC: C08L23/08 ,  C08F210/16 ,  C08F2/06 ,  C08F2/34 ,  C08F4/659 ,  C08J5/18

CPC classification number: C08L23/0815 ,  C08F210/16 ,  C08F2/06 ,  C08F2/34 ,  C08F4/659 ,  C08J5/18 ,  C08L2203/16

Abstract: The present invention relates to a new multimodal ethylene copolymer (P), to the use of the copolymer in film applications and to a film comprising the copolymer of the invention.

公开(公告)号：US20210395427A1

公开(公告)日：2021-12-23

申请号：US17292066

申请日：2019-11-14

Applicant: BOREALIS AG

Inventor： Jingbo WANG ,  Markus GAHLEITNER ,  Klaus BERNREITNER ,  Pauli LESKINEN ,  Matthias HOFF

IPC: C08F297/08 ,  C08J5/18

Abstract: The invention provides a multimodal propylene butene random copolymer having a melt flow rate (MFR2) of 1.0 to 20.0 g/10 min and a butene content of 5.0 to 20.0 wt %, wherein said copolymer is prepared using a single site catalyst and wherein said copolymer comprises: (i) 30 to 70 wt % of a propylene butene copolymer (A) having an MFR2 of 0.5 to 20.0 g/10 min and a butene content of 2.0 to 10.0 wt %; and (ii) 70 to 30 wt % of a propylene butene copolymer (B) having an MFR2 of 0.5 to 20.0 g/10 min and a butene content of 4.0 to 20.0 wt %; wherein copolymers (A) and (B) are different.

公开(公告)号：US20250115749A1

公开(公告)日：2025-04-10

申请号：US18832338

申请日：2023-01-24

Applicant: BOREALIS AG

Inventor： Jingbo WANG ,  Friedrich BERGER ,  Matthias HOFF ,  Stefan POLLHAMMER ,  Andreas ALBRECHT

IPC: C08L23/0807 ,  C08J5/18

Abstract: Disclosed is a polyethylene blend of a specific multimodal metallocene catalysed linear low density polyethylene (mLLDPE) and a specific branched metallocene catalysed polyethylene copolymer (mPE), which provides films with well-balanced properties, especially dart drop (impact strength) and haze.

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：US20210395512A1

公开(公告)日：2021-12-23

申请号：US17292063

申请日：2019-11-14

Applicant: BOREALIS AG

Inventor： Jingbo WANG ,  Markus GAHLEITNER ,  Klaus BERNREITNER ,  Pauli LESKINEN ,  Matthias HOFF

IPC: C08L53/00 ,  C08F297/08 ,  C08J5/18

Abstract: The invention provides a polyolefin composition comprising: (i) 55 to 95 wt % of a propylene butene random copolymer having an MFR2 of 1.0 to 20.0 g/10 min, a butene content of 1.5 to 8.0 wt % and prepared using a single site catalyst; and (ii) to 45 wt % of an ethylene based plastomer having a density of 860 to 905 kg/m3, an MFR2 of 0.3 to 30 g/10 min and prepared using a single site catalyst.