公开(公告)号：US20220251283A1

公开(公告)日：2022-08-11

申请号：US17433045

申请日：2020-02-14

Applicant: Dow Global Technologies LLC ,  Northwestern University

Inventor： Mihir Bhagat ,  Charmaine Bennett ,  Youlong Zhu ,  SonBinh T. Nguyen ,  Linda Broadbelt ,  Justin M. Notestein ,  Matthew E. Belowich ,  Arjun Raghuraman ,  William H. Heath ,  Sukrit Mukhopadhyay ,  Heather A. Spinney ,  David R. Wilson

IPC: C08G18/48 ,  C08G65/26 ,  C08G18/10 ,  C08G65/00

Abstract: A method of producing a polyether alcohol that includes feeding an initiator into a reactor, feeding one or more monomers into the reactor, feeding a polymerization catalyst into the reactor, the polymerization catalyst being a Lewis acid catalyst having a general formula M(R1)1(R2)1(R3)1(R4)0 or 1, separate from feeding the initiator into the reactor, feeding a hydrogen bond acceptor additive into the reactor, the hydrogen bond acceptor additive being a C2 to C20 organic molecule having at least two hydroxyl groups, of which two hydroxyl groups are situated in 1,2-, 1,3-, or 1,4- positions on the organic molecule, and allowing the initiator to react with the one or more monomers in the presence of the polymerization catalyst and the hydrogen bond acceptor additive to form a polyether alcohol having a number average molecular weight greater than a number average molecular weight of the initiator.

公开(公告)号：US20210268487A1

公开(公告)日：2021-09-02

申请号：US17232288

申请日：2021-04-16

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：US11066489B2

公开(公告)日：2021-07-20

申请号：US16646237

申请日：2018-09-19

Applicant: Dow Global Technologies LLC

Inventor： Arkady L. Krasovskiy ,  David R. Wilson ,  Bryan D. Stubbert ,  Tulaza Vaidya ,  Jerzy Klosin ,  Edmund M. Carnahan ,  Philip P. Fontaine ,  Mari S. Rosen

IPC: C08F4/6592 ,  C07F7/08

Abstract: Embodiments are directed to a catalyst system comprising metal ligand complexes and processes for polyolefin polymerization using the metal ligand complex having the following structure: where each X is selected from the group consisting of —(CH2)SiRX3.

公开(公告)号：US11066428B2

公开(公告)日：2021-07-20

申请号：US16646228

申请日：2018-09-20

Applicant: Dow Global Technologies LLC

Inventor： Bryan D. Stubbert ,  Arkady L. Krasovskiy ,  Tulaza Vaidya ,  Jerzy Klosin ,  Edmund M. Carnahan ,  Philip P. Fontaine ,  Mari S. Rosen ,  David R. Wilson

IPC: C08F4/659 ,  C07F7/08 ,  C08F10/02

Abstract: Embodiments are directed to a catalyst system comprising metal-ligand complexes and processes for polyolefin polymerization using the metal-ligand complex having the following structure, Formula (I), where X is selected from the group consisting of —(CH2)SiRX3.

公开(公告)号：US11001669B2

公开(公告)日：2021-05-11

申请号：US16641926

申请日：2018-09-14

Applicant: Dow Global Technologies LLC

Inventor： Arjun Raghuraman ,  William H. Heath ,  Sukrit Mukhopadhyay ,  Heather A. Spinney ,  David R. Wilson

IPC: C08G65/10 ,  C07F5/02 ,  C08G18/16 ,  C08G18/48 ,  C08G65/26 ,  C08G18/76 ,  C08G101/00

Abstract: A Lewis acid polymerization catalyst has a general formula M(R1)1(R2)1(R3)1(R4)0 or 1, whereas M is boron, R1, R2, R3, and R4 are each independent, R1 is a 3,5-bis(trifluoromethyl)-substituted phenyl group, R2 is the 3,5-bis(trifluoromethyl)-substituted phenyl group or a first fluoro-substituted phenyl group selected from Set 1 structures, R3 is independently a second fluoro-substituted phenyl group selected from the Set 1 structures, and optional R4 includes a third functional group or functional polymer group.

公开(公告)号：US20210129125A1

公开(公告)日：2021-05-06

申请号：US17110625

申请日：2020-12-03

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：US20210070920A1

公开(公告)日：2021-03-11

申请号：US16644310

申请日：2018-09-14

Applicant: Dow Global Technologies LLC ,  Northwestern University

Inventor： Arjun Raghuraman ,  William H. Heath ,  Sukrit Mukhopadhyay ,  Heather A. Spinney ,  David R. Wilson ,  Justin M. Notestein ,  SonBinh T. Nguyen

IPC: C08G18/48 ,  C08G65/26 ,  B01J31/14

Abstract: A method of producing a polyether polyol that includes reacting a low molecular weight initiator with ethylene oxide in the presence of a polymerization catalyst, the low molecular weight initiator having a number average molecular weight of less than 1,000 g/mol and a nominal hydroxyl functionality at least 2, and the polymerization catalyst being a Lewis acid catalyst having the general formula M(R1)1(R2)1(R3)1(R4)0 or 1. Whereas, M is boron, aluminum, indium, bismuth or erbium, R1, R2, and R3 each includes a same fluoroalkyl-substituted phenyl group, and optional R4 includes a functional group or functional polymer group. R1, R2, and R3 are the same fluoroalkyl-substituted phenyl group. The method further includes forming a polyether polyol having a number average molecular weight of greater than the number average molecular weight of the low molecular weight initiator in the presence of the Lewis acid catalyst.

公开(公告)号：US20200277412A1

公开(公告)日：2020-09-03

申请号：US16646209

申请日：2018-09-19

Applicant: Dow Global Technologies LLC

Inventor： Arkady L. Krasovskiy ,  David R. Wilson ,  Tulaza Vaidya ,  Edmund M. Carnahan ,  Philip P. Fontaine ,  Carl N. Iverson

IPC: C08F4/64 ,  C08F10/02 ,  C08F210/16

Abstract: Embodiments are directed to a catalyst system comprising metal ligand complexes and processes for polyolefin polymerization using the metal ligand complex having the following structure: where X is selected from the group consisting of —ORX or NRX2.

公开(公告)号：US20200270282A1

公开(公告)日：2020-08-27

申请号：US16646228

申请日：2018-09-20

Applicant: Dow Global Technologies LLC

Inventor： Bryan D. Stubbert ,  Arkady L. Krasovskiy ,  Tulaza Vaidya ,  Jerzy Klosin ,  Edmund M. Carnahan ,  Philip P. Fontaine ,  Mari S. Rosen ,  David R. Wilson

IPC: C07F7/08 ,  C08F4/659 ,  C08F10/02

Abstract: Embodiments are directed to a catalyst system comprising metal-ligand complexes and processes for polyolefin polymerization using the metal-ligand complex having the following structure, Formula (I), where X is selected from the group consisting of —(CH2)SiRX3.

公开(公告)号：US20200030783A1

公开(公告)日：2020-01-30

申请号：US16508470

申请日：2019-07-11

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.