公开(公告)号：US11028230B1

公开(公告)日：2021-06-08

申请号：US17259720

申请日：2019-07-03

Applicant: Dow Silicones Corporation ,  Dow Global Technologies LLC

Inventor： Matthew Belowich ,  Mark Rickard ,  Vladimir Pushkarev ,  Shaungbing Han ,  Evelyn Auyeung ,  John Roberts ,  Thomas Peterson

IPC: C08G77/08

Abstract: A method for making long chain hydroxyl terminated polydiorganosiloxanes with low cyclics content via condensation polymerization employs a trifluoromethane sulfonate compound catalyst. The trifluoromethane sulfonate may be complexed with a multidentate ligand.

公开(公告)号：US20240010779A1

公开(公告)日：2024-01-11

申请号：US18254956

申请日：2021-12-16

Applicant: Dow Global Technologies LLC ,  Northwestern University

Inventor： Evelyn Auyeung ,  Rhett A. Baillie ,  Thomas Wesley Karjala, JR. ,  Zhe Zhou ,  Jeffrey C. Munro ,  Colin Li Pi Shan ,  Phillip D. Hustad ,  Tobin J. Marks ,  Yanshan Gao

IPC: C08F297/08

CPC classification number: C08F297/083

Abstract: A process to form a composition comprising an ethylene/vinylarene multiblock interpolymer, said process comprising polymerizing, in a single reactor, a mixture comprising ethylene, a vinylarene, and optionally an alpha-olefin, in the presence of at least the following a)-c): a) a first metal complex selected from the following Formula (A), as described herein: b) a second metal complex selected from the following Formula (B), as described herein, and c) a chain shuttling agent selected from the following: a dialkyl zinc, a trialkyl aluminum, or a combination thereof. A composition comprising an ethylene/vinylarene multiblock interpolymer comprising at least one polymer structure selected from: -(AR)-(AP)-(AR)-(AP)- (Structure 1), or (AR)-(AP)-(AR)-(AP) (Structure 2); where each (AR) segment independently comprises, in polymerized form, ethylene, >10 mol % of the vinylarene and optionally an alpha-olefin, and wherein each (AP) segment independently comprises, ethylene, optionally ≤10 mol % vinylarene and optionally the alpha-olefin.

公开(公告)号：US20230183267A1

公开(公告)日：2023-06-15

申请号：US17930274

申请日：2022-09-07

Applicant: Dow Global Technologies LLC

Inventor： Rhett A. Baillie ,  Philip P. Fontaine ,  Jerzy Klosin ,  Todd D. Senecal ,  Johnathan E. DeLorbe ,  Rafael Huacuja ,  Evelyn Auyeung ,  Robert David Grigg ,  Sudipta Pal ,  Brad C. Bailey

IPC: C07F5/00 ,  C08F4/659 ,  C08F2/38

CPC classification number: C07F5/003 ,  C08F4/65912 ,  C08F2/38

Abstract: Embodiments of this disclosure are directed to catalyst systems comprising a metal-ligand complex according to formula (I):

公开(公告)号：US20220396653A1

公开(公告)日：2022-12-15

申请号：US17773586

申请日：2020-12-17

Applicant: Dow Global Technologies LLC

Inventor： Evelyn Auyeung ,  Arkady L. Krasovskiy ,  Bryan D. Stubbert ,  Anna V. Davis ,  Jianbo Hou ,  Clark H. Cummins

IPC: C08F293/00 ,  C08F220/18

Abstract: The present disclosure relates to a process for preparing an olefin-acrylate diblock copolymer, the process comprising: a) performing nitroxide-mediated polymerization (NMP) by combining NMP materials comprising an acrylate monomer and a nitroxide initiator, thereby forming a nitroxide macroinitiator; and b) combining end-capping-reaction materials comprising an alpha-substituted acrylate and the nitroxide macroinitiator, thereby forming the olefin-acrylate diblock copolymer.

公开(公告)号：US11136436B2

公开(公告)日：2021-10-05

申请号：US15734086

申请日：2019-07-03

Applicant: Dow Silicones Corporation ,  Dow Global Technologies LLC

Inventor： John Roberts ,  Matthew Belowich ,  Thomas Peterson ,  Vladimir Pushkarev ,  Evelyn Auyeung ,  Mark Rickard

IPC: C08G77/08 ,  C08G77/10 ,  C08G77/16

Abstract: A method for making long chain hydroxyl terminated polydiorganosiloxanes with low cyclics content via condensation polymerization employs a selective catalyst. The catalyst includes a salt-anion complex and a free acid.

公开(公告)号：US20210163686A1

公开(公告)日：2021-06-03

申请号：US17259720

申请日：2019-07-03

Applicant: Dow Silicones Corporation ,  Dow Global Technologies LLC

Inventor： Matthew Belowich ,  Mark Rickard ,  Vladimir Pushkarev ,  Shaungbing Han ,  Evelyn Auyeung ,  John Roberts ,  Thomas Peterson

IPC: C08G77/08

Abstract: A method for making long chain hydroxyl terminated polydiorganosiloxanes with low cyclics content via condensation polymerization employs a trifluoromethane sulfonate compound catalyst. The trifluoromethane sulfonate may be complexed with a multidentate ligand.

公开(公告)号：US20230348641A1

公开(公告)日：2023-11-02

申请号：US17796531

申请日：2021-01-29

Applicant: Dow Global Technologies LLC

Inventor： Rhett A. Baillie ,  Philip P. Fontaine ,  Johnathan E. DeLorbe ,  Rafael Huacuja ,  Evelyn Auyeung ,  Jerzy Klosin ,  Robert David Grigg ,  Sudipta Pal ,  Brad C. Bailey

IPC: C08F210/16 ,  C08F4/54

CPC classification number: C08F210/16 ,  C08F4/545

Abstract: Embodiments of this disclosure are directed to polymerization process comprising contacting ethylene and optionally one or more α-olefins in solution in the presence of one or more catalyst systems and a chain transfer agent, wherein the catalyst system comprises a metal-ligand complex according to formula (I).

公开(公告)号：US20230250292A1

公开(公告)日：2023-08-10

申请号：US18004707

申请日：2021-07-19

Applicant: Dow Global Technologies LLC ,  Rohm and Haas Company

Inventor： Evelyn Auyeung ,  Robert J. Wright ,  Brian A. Jazdzewski ,  Nicole Knight ,  Zahid Asif ,  Warren E. Smith

IPC: C09B1/32 ,  B01J23/72 ,  C10L1/00

CPC classification number: C09B1/32 ,  B01J23/72 ,  C10L1/003 ,  C10L2200/0259

Abstract: The present invention is a method of making 1,4,5,8-tetrakis(R-phenylamino)anthracene-9,10-dione (where R is H or a hydrocarbyl group) comprising the step of contacting 1,4,5,8-tetrachloroanthraquinone with a mixture of R-anilines comprising at least two different R groups, under conditions to produce 1,4,5,8-tetrakis(R-phenylamino)anthracene-9,10-dione. The present disclosure also provides a reaction mixture of 1,4,5,8-tetrakis(R-phenylamino)anthracene-9,10-dione characterized by having the R groups on at least 75% of the 1,4,5,8-tetrakis(R-amino)anthracene-9,10-dione molecules in the mixture be comprised of 2 or more different R groups. The present disclosure also provides a method of improving the solubility of 1,4,5,8-tetrakis(R-phenylamino)anthracene-9,10-dione in aromatic hydrocarbons distilled from crude oil, comprising selecting a mixture of 1,4,5,8-tetrakis(R-phenylamino)anthracene-9,10-diones which are characterized by having at least 75% of the 1,4,5,8-tetrakis(R-phenylamino)anthracene-9,10-dione molecules in the mixture comprise two or more different R groups. The compounds of the present invention exhibit a suitable UV visible absorbance profile making them suitable for use as a fuel marker.

公开(公告)号：US20230133760A1

公开(公告)日：2023-05-04

申请号：US17796560

申请日：2021-01-29

Applicant: Dow Global Technologies LLC

Inventor： Rhett A. Baillie ,  Philip P. Fontaine ,  Jerzy Klosin ,  Todd D. Senecal ,  Johnathan E. DeLorbe ,  Rafael Huacuja ,  Evelyn Auyeung ,  Robert David Grigg ,  Sudipta Pal ,  Brad C. Bailey

IPC: C07F5/00 ,  C08F4/659 ,  C08F2/38

Abstract: Embodiments of this disclosure are directed to catalyst systems comprising a metal-ligand complex according to formula (I).

公开(公告)号：US11236182B2

公开(公告)日：2022-02-01

申请号：US16977287

申请日：2019-03-25

Applicant: Dow Global Technologies LLC

Inventor： Evelyn Auyeung ,  Sean W. Ewart ,  Daniela Ferrari ,  Thomas Davidian ,  Rony Vanspeybroeck

IPC: C08F10/02 ,  C08F2/06 ,  C08F6/02 ,  C08F2/42 ,  C08F110/14

Abstract: A solution polymerization process for producing ethylene-based polymer includes introducing ethylene monomer, hydrocarbon solvent, and Ziegler-Natta catalyst into an entrance of a solution polymerization reactor. An ethylene-based polymer is produced by solution polymerizing the ethylene monomer in hydrocarbon solvent. Subsequently, a catalyst deactivator is introduced into x the exit of the solution polymerization reactor, thereby producing hydrochloric acid byproduct. The catalyst deactivator includes long chain carboxylate and at least one cation selected from Groups 1, 2, and 12 of the IUPAC periodic table, with the exception of calcium. The catalyst deactivator reduces the effectiveness of the Ziegler-Natta catalyst and neutralizes the hydrochloric acid by forming a chloride salt other than calcium chloride.