公开(公告)号：US20210032382A1

公开(公告)日：2021-02-04

申请号：US17043304

申请日：2019-03-26

Applicant: Dow Global Technologies LLC

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

IPC: C08F210/16

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 an ionic metallic activator complex, the ionic metallic activator complex comprising an anion and a countercation, the anion having a structure according to formula (I):formula (I)

公开(公告)号：US20200010582A1

公开(公告)日：2020-01-09

申请号：US16488063

申请日：2018-02-28

Applicant: Dow Global Technologies LLC

Inventor： Liam P. Spencer ,  David M. Pearson

IPC: C08F4/649 ,  C08F4/659 ,  C08F4/64 ,  C08F210/16

Abstract: Catalyst systems contain metal-ligand complexes according to formula (I): In formula (I), M is Ti, Zr, of Hf; n is 0, 1, 2, or 3; m is 1 or 2; each R1 and each R2 is independently chosen from (C1-C40)hydrocarbyl, (C1-C40)heterohydrocarbyl, (C1-C40)aryl, (C1-C40)heteroaryl, halogen, and —H; R1 and R2 are optionally covalently linked to each other; and each R3 is a hydrocarbon or heterohydrocarbon radical having an identity depending on the value of subscript m. The metal-ligand complexes may be incorporated as procatalysts in catalyst systems for polyolefin polymerization.

公开(公告)号：US20180291048A1

公开(公告)日：2018-10-11

申请号：US15557875

申请日：2016-03-10

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: C07F9/6568

CPC classification number: B01J31/2433 ,  B01J31/143 ,  B01J31/188 ,  B01J31/2208 ,  B01J31/2438 ,  B01J31/2457 ,  B01J31/2476 ,  B01J31/2495 ,  B01J2231/20 ,  B01J2531/62 ,  B01J2540/10 ,  B01J2540/22 ,  B01J2540/225 ,  B01J2540/30 ,  B01J2540/34 ,  B01J2540/444 ,  C07C2/36 ,  C07C2531/14 ,  C07C2531/18 ,  C07C2531/24 ,  C07F9/6568 ,  C07F9/65683 ,  C07F9/65685 ,  C07F9/6571 ,  C07F9/657154 ,  C07F9/65842 ,  C07F9/65844 ,  C07F9/65846 ,  C07F9/65848 ,  C07F11/005 ,  C07F17/02 ,  C07C11/02 ,  C07C11/107

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：US20180002464A1

公开(公告)日：2018-01-04

申请号：US15538686

申请日：2015-12-28

Applicant: Dow Global Technologies LLC

Inventor： Philip P. Fontaine ,  Susan G. Brown ,  Andrew J. Young ,  David M. Pearson ,  Edmund M. Carnahan

IPC: C08F210/16

CPC classification number: C08F210/16 ,  C08F4/659 ,  C08F4/65908 ,  C08F4/65912 ,  C08F2410/01 ,  Y02P20/582 ,  C08F4/64193 ,  C08F210/14 ,  C08F2500/08 ,  C08F2500/03 ,  C08F2500/12

Abstract: The instant invention provides a polyolefin composition and method of producing the same. The olefin polymerization process according to the present invention comprises contacting one or more olefinic monomers with a biphenylphenolic polymerization catalyst under polymerization conditions and in the presence of one or more treated aluminum-based scavengers in a polymerization reactor, wherein said one or more treated aluminum-based scavengers comprise the reaction product of an alkylaluminum or an aluminoxane specie with a compound of the general Formula (I): wherein X is O, N, or S and R is alkyl, aryl, heteroalkyl, heteroaryl, or hydrogen, wherein n=1 if X is O or S and n=1 if X is N, and wherein at least one R is not a hydrogen; Rn—X—H (I); thereby producing a polyolefin composition which comprises less than 50% of the oligomer level of a polyolefin composition produced in an olefin polymerization process in the presence of said one or more untreated aluminum-based scavengers.

公开(公告)号：US20170369609A1

公开(公告)日：2017-12-28

申请号：US15535576

申请日：2015-12-23

Applicant: Dow Global Technologies LLC

Inventor： Liam P. Spencer ,  Sean W. Ewart ,  David M. Pearson ,  Lixin Sun

IPC: C08F210/02 ,  C08F4/6592 ,  C08G81/02 ,  C08F299/00 ,  C08F212/32 ,  C08F210/16 ,  C08F12/12 ,  G01N33/46 ,  G01N30/00 ,  C08F4/659

CPC classification number: C08F210/02 ,  C08F4/65908 ,  C08F4/65912 ,  C08F4/6592 ,  C08F12/12 ,  C08F210/16 ,  C08F212/32 ,  C08F299/00 ,  C08F2420/02 ,  C08G81/02 ,  G01N33/46 ,  G01N2030/486

Abstract: A first ethylene-based interpolymer comprising, in polymerized form, monomer units derived from ethylene and from a benzocyclobutene (VBCB) structure of Structure 1; wherein n is from 3 to 10; and wherein the ethylene-based polymer comprises, in polymerized form, from 0.02 to 0.70 wt % of the Structure 1, based on the weight of the first ethylene-based interpolymer, as determined by 1H NMR is provided. Further provided is a composition which comprises a second ethylene-based inter-polymer formed by thermally treating a first ethylene-based interpolymer.

公开(公告)号：US20250011478A1

公开(公告)日：2025-01-09

申请号：US18710887

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: C08F4/659 ,  C08F2/34 ,  C08F210/16

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：US20240400733A1

公开(公告)日：2024-12-05

申请号：US18699633

申请日：2022-10-10

Applicant: Dow Global Technologies LLC

Inventor： Bo Liu ,  Nitin K. Borse ,  Lalit Darunte ,  David M. Pearson ,  Mridula Kapur ,  Linfeng Chen ,  Yongchao Zheng ,  Andrew T. Heitsch

IPC: C08F210/16 ,  C08F2/34 ,  C08F4/642 ,  C08F4/655 ,  C08F4/659 ,  C08F4/6592 ,  C08L23/08

Abstract: Embodiments are directed towards ethylene/1-hexene copolymers made from ethylene and hexene, wherein the ethyl-CA ene/1-hexene copolymer has a density from 0.850 to 0.940 g/cm3, a melt index (I21) from 0.1 to 50 dg/min, a melt index (I21/I2) ratio less than or equal to 18.5, a Mw(Abs)/Mn(Abs) from 2.0 to 3.5, a Mz(Abs)/Mw(Abs) from 1.7 to 4.5, and a cumulative detector fraction (CDFLS) at a molecular weight of ≥1,000,000 g/mol of greater than 100*(0.0536−I21*0.00224)%.

公开(公告)号：US20240150502A1

公开(公告)日：2024-05-09

申请号：US18277331

申请日：2022-02-10

Applicant: Dow Global Technologies LLC

Inventor： Ruth Figueroa ,  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 ,  Mari S. Rosen ,  Joseph F. DeWilde

IPC: C08F4/62 ,  C08F4/02 ,  C08F210/02

CPC classification number: C08F4/62193 ,  C08F4/025 ,  C08F210/02

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

公开(公告)号：US20230322968A1

公开(公告)日：2023-10-12

申请号：US18000036

申请日：2021-05-28

Applicant: Dow Global Technologies LLC

Inventor： Rhett A. Baillie ,  Hien Q. Do ,  Andrew M. Camelio ,  Johnathan E. Delorbe ,  Mari S. Rosen ,  Philip P. Fontaine ,  David M. Pearson

IPC: C08F4/64 ,  C08F210/16 ,  C08F2/01 ,  C08F2/34

CPC classification number: C08F4/64193 ,  C08F2/01 ,  C08F2/34 ,  C08F210/16

Abstract: Embodiments of the present application are directed to procatalysts, and catalyst systems including procatalysts, including a metal-ligand complex having the structure of formula (I): [Formula I]

公开(公告)号：US20230287152A1

公开(公告)日：2023-09-14

申请号：US18005754

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: C08F4/76 ,  C08F4/58 ,  C08F4/52 ,  C08F2/44 ,  C08F210/18

CPC classification number: C08F4/76 ,  C08F2/44 ,  C08F4/52 ,  C08F4/58 ,  C08F210/18 ,  C08F2410/04

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: an activator; 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 (1):