公开(公告)号：US20250051495A1

公开(公告)日：2025-02-13

申请号：US18710874

申请日：2022-11-21

Applicant: Dow Global Technologies LLC

Inventor： Andrew M. Camelio ,  Rhett A. Baillie ,  Brad C. Bailey ,  Johnathan E. DeLorbe ,  Hien Q. Do ,  David M. Pearson ,  Philip P. Fontaine

IPC: C08F10/02

Abstract: Embodiments of the present application are directed to supported catalyst systems that include a metal-ligand complex having the structure of formula (I):

公开(公告)号：US20240124628A1

公开(公告)日：2024-04-18

申请号：US18276173

申请日：2022-02-08

Applicant: Dow Global Technologies LLC

Inventor： Angela I. Padilla-Acevedo ,  Rhett A. Baillie ,  Roger L. Kuhlman ,  Mahsa McDougal ,  Tamara L. Brennan ,  David M. Pearson ,  Stephanie M. Whited

IPC: C08F210/16 ,  C07F17/00

CPC classification number: C08F210/16 ,  C07F17/00

Abstract: Embodiments of the present disclosure are directed towards bicyclic hafnium metallocenes having non-identical ligands and compositions including the bicyclic hafnium metallocenes having non-identical ligands. The bicyclic hafnium metallocene having non-identical ligands is represented by formula (I): ABMX2, where: A is a bicyclic structure; and B is a cyclopentadienyl; M is hafnium; and X is a leaving group, wherein the bicyclic structure comprises a ((C1-C6)alkyl)n-substituted Cp ring and a non-aromatic cyclic structure fused with the ((C1-C6) alkyl)n-substituted Cp ring such that the bicyclic structure includes 7 to 9 ring carbon atoms and wherein subscript n is 1, 2, or 3.

公开(公告)号：US20240116969A1

公开(公告)日：2024-04-11

申请号：US18276153

申请日：2022-02-08

Applicant: Dow Global Technologies LLC

Inventor： Rhett A. Baillie ,  Roger L. Kuhlman ,  Angela I. Padilla-Acevedo ,  Mahsa McDougal ,  Tamara L. Brennan ,  David M. Pearson ,  Stephanie M. Whited

IPC: C07F17/00 ,  C08F210/16

CPC classification number: C07F17/00 ,  C08F210/16

Abstract: Embodiments of the present disclosure are directed towards hafnium metallocenes having nonidentical ligands, spray-dried compositions including those hafnium metallocenes, and methods utilizing spray-dried compositions including hafnium metallocene having nonidentical ligands.

公开(公告)号：US20240010770A1

公开(公告)日：2024-01-11

申请号：US18005750

申请日：2021-02-05

Applicant: Dow Global Technologies LLC

Inventor： Philip P. Fontaine ,  David M. Pearson ,  Hien Q. Do ,  Johnathan E. Delorbe ,  Rafael Huacuja ,  Rhett A. Baillie

IPC: C08F210/16 ,  C08F4/659

CPC classification number: C08F210/16 ,  C08F4/65912

Abstract: Processes of polymerizing olefin monomers. The process comprising reacting ethylene and optionally one or more olefin monomers in the presence of a catalyst system, wherein the catalyst system comprises: hydrocarbyl-modified methylaluminoxane having less than 25 mole percent trihydrocarbyl aluminum compounds AlRA1RB1RC1 based on the total moles of aluminum, where RA1, RB1, and RC1 are independently linear (C1-C40)alkyl, branched (C1-C40)alkyl, or (C6-C40)aryl; and one or more metal-ligand complexes according to formula (I):

公开(公告)号：US20230174693A1

公开(公告)日：2023-06-08

申请号：US17922923

申请日：2021-05-07

Applicant: Dow Global Technologies LLC

Inventor： Rafael Huacuja ,  Richard Keaton ,  Jerzy Klosin ,  Sukrit Mukhopadhyay ,  David M. Pearson ,  Todd D. Senecal ,  William H.H. Woodward

IPC: C08F210/16 ,  C07F5/02 ,  C07F7/08

CPC classification number: C08F210/16 ,  C07F5/027 ,  C07F7/0814

Abstract: Processes of polymerizing olefins. The process includes polymerizing contacting ethylene and a (C3-C40)alpha-olefin comonomer in the presence of a catalyst system comprising a procatalyst and a bimetallic activator complex. The bimetallic activator complex includes an anion and a countercation. The anion having a structure according to formula (I).

公开(公告)号：US20230098987A1

公开(公告)日：2023-03-30

申请号：US17786672

申请日：2020-12-17

Applicant: Dow Global Technologies LLC

Inventor： Angela I. Padilla-Acevedo ,  Andrew J. Young ,  Roger L. Kuhlman ,  Susan Brown ,  Matthew E. Belowich ,  David R. Neithamer ,  Jerzy Klosin ,  David M. Pearson ,  Leslie E. O'Leary ,  Joseph F. DeWilde

IPC: C08F110/02

Abstract: Embodiments are directed towards a use of a supported gas-phase biphenylphenol polymerization catalyst to make a polymer via a gas-phase polymerization process, wherein the supported gas-phase biphenylphenol polymerization catalyst is made from a gas-phase biphenylphenol polymerization precatalyst of Formula I.

公开(公告)号：US11447584B2

公开(公告)日：2022-09-20

申请号：US17043483

申请日：2019-03-26

Applicant: Dow Global Technologies LLC

Inventor： Todd D. Senecal ,  Sukrit Mukhopadhyay ,  Richard J. Keaton ,  Jerzy Klosin ,  Rafael Huacuja ,  David M. Pearson ,  William H. H. Woodward

IPC: C08F4/642 ,  C08F210/16 ,  C08F210/02 ,  C08F4/64 ,  C08F4/643 ,  C08F4/659 ,  C08F210/04 ,  C08F210/14

Abstract: Embodiments of this disclosure include processes of polymerizing olefins, the process comprising contacting ethylene and a (C3-C40)alpha-olefin comonomer in the presence of a catalyst system, the catalyst system comprising a Group IV metal-ligand complex and a metallic activator ionic complex, the metallic activator ionic complex comprising an anion and a countercation, the anion having a structure according to formula (I):

公开(公告)号：US20220176363A1

公开(公告)日：2022-06-09

申请号：US17669558

申请日：2022-02-11

Applicant: Dow Global Technologies LLC

Inventor： Jerzy Klosin ,  Kara A. Milbrandt ,  Scott D. Boelter ,  David R. Wilson ,  Mari S. Rosen ,  Dean M. Welsh ,  Peter M. Margl ,  Kyoung Moo Koh ,  David M. Pearson ,  Rafael Huacuja

IPC: B01J31/24 ,  B01J31/14 ,  B01J31/18 ,  C07C2/36 ,  C07F9/6568 ,  C07F9/6584 ,  C07F11/00 ,  C07F17/02 ,  C07F9/6571 ,  B01J31/22

Abstract: The invention relates to oligomerization of olefins, such as ethylene, to higher olefins, such as a mixture of 1-hexene and 1-octene, using a catalyst system that comprises a) a source of chromium b) one or more activators and c) a phosphacycle-containing ligating compound. Additionally, the invention relates to a phosphacycle-containing ligating compound and a process for making said compound.

公开(公告)号：US10981156B2

公开(公告)日：2021-04-20

申请号：US16235124

申请日：2018-12-28

Applicant: Dow Global Technologies LLC

Inventor： Jerzy Klosin ,  Kara A. Milbrandt ,  Scott D. Boelter ,  David R. Wilson ,  Mari S. Rosen ,  Dean M. Welsh ,  Peter M. Margl ,  Kyoung Moo Koh ,  David M. Pearson ,  Rafael Huacuja

IPC: B01J31/24 ,  B01J31/14 ,  B01J31/18 ,  C07C2/36 ,  C07F9/6568 ,  C07F9/6584 ,  C07F11/00 ,  C07F17/02 ,  C07F9/6571 ,  B01J31/22

Abstract: The invention relates to oligomerization of olefins, such as ethylene, to higher olefins, such as a mixture of 1-hexene and 1-octene, using a catalyst system that comprises a) a source of chromium b) one or more activators and c) a phosphacycle-containing ligating compound. Additionally, the invention relates to a phosphacycle-containing ligating compound and a process for making said compound.

公开(公告)号：US10919031B2

公开(公告)日：2021-02-16

申请号：US16895537

申请日：2020-06-08

Applicant: Dow Global Technologies LLC

Inventor： Jerzy Klosin ,  Kara A. Milbrandt ,  Scott D. Boelter ,  David R. Wilson ,  Mari S. Rosen ,  Dean M. Welsh ,  Peter M. Margl ,  Kyoung Moo Koh ,  David M. Pearson ,  Rafael Huacuja

IPC: B01J31/24 ,  B01J31/18 ,  C07C2/36 ,  C07F9/6568 ,  C07F9/6584 ,  C07F11/00 ,  C07F17/02 ,  C07F9/6571 ,  B01J31/22 ,  B01J31/14

Abstract: The invention relates to oligomerization of olefins, such as ethylene, to higher olefins, such as a mixture of 1-hexene and 1-octene, using a catalyst system that comprises a) a source of chromium b) one or more activators and c) a phosphacycle-containing ligating compound. Additionally, the invention relates to a phosphacycle-containing ligating compound and a process for making said compound.