公开(公告)号：US10647797B2

公开(公告)日：2020-05-12

申请号：US15763937

申请日：2016-09-28

Applicant: Dow Global Technologies LLC

Inventor： Philip P. Fontaine ,  Andrew Young ,  Susan Brown ,  Hien Do ,  Johnathan DeLorbe ,  Tulaza Vaidya ,  Chunming Zhang ,  Arvind Jaganathan

IPC: C08F210/16 ,  C08F4/659

Abstract: The disclosure provides a procatalyst for the polymerization of ethylene and optionally one or more alpha-olefins having the structure shown in formula (I) below: wherein at least two of Y1-Y3 and at least two of Y4-Y6 are fluorine atoms and when only two of Y1-Y3 and only two of Y4-Y6 are fluorine atoms, the non-fluorine Y1-Y6 are selected from the group consisting of H atom, alkyl groups, aryl groups, heteroaryl groups, and alkoxy groups. Also provided is a polymerization process using the procatalyst.

公开(公告)号：US10246415B2

公开(公告)日：2019-04-02

申请号：US15574051

申请日：2016-05-27

Applicant: Dow Global Technologies LLC

Inventor： Chunming Zhang ,  Arvind Jaganathan ,  Heqi Pan ,  Philip Fontaine ,  Jerzy Klosin

IPC: C07D209/86 ,  C07D209/88 ,  C07F7/08

Abstract: A process for preparing one or more carbazoles comprising (a) contacting one or more compounds represented by formula (1) below with diboron reagents in the presence of PdCl2(dppf) to form one or more 2,2′-dichlorobiaryl represented by formula (2) below; and (b) contacting the one or more 2,2′-dichlorobiaryls with one or more H2N—Y compounds, in the presence of one or more palladium containing catalytic components; thereby forming one or more carbazoles represented by formula (3) below is provided.

公开(公告)号：US20230382929A1

公开(公告)日：2023-11-30

申请号：US18032039

申请日：2021-10-13

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： Sanil Sreekumar ,  Brad C. Bailey ,  Arvind Jaganathan ,  James J. Henkelis ,  Matthew D. Christianson ,  Sukrit Mukhopadhyay ,  James A. Walker ,  Jordan C. Reddel

IPC: C07F7/00 ,  C08F4/76 ,  C08F210/16

CPC classification number: C07F7/00 ,  C08F4/76 ,  C08F210/16

Abstract: Embodiments are directed to a metal-ligand complex of formula (I). In addition, a polymerization process includes polymerizing at least one olefin in the presence of a catalyst system comprising the metal-ligand complex and at least one activator to produce an olefinic polymer.

公开(公告)号：US20180230099A1

公开(公告)日：2018-08-16

申请号：US15574051

申请日：2016-05-27

Applicant: Dow Global Technologies LLC

Inventor： Chunming Zhang ,  Arvind Jaganathan ,  Heqi Pan ,  Philip Fontaine ,  Jerzy Klosin

IPC: C07D209/86 ,  C07F7/08 ,  C07D209/88

CPC classification number: C07D209/86 ,  C07D209/88 ,  C07F7/083

Abstract: A process for preparing one or more carbazoles comprising (a) contacting one or more compounds represented by formula (1) below with diboron reagents in the presence of PdCl2(dppf) to form one or more 2,2′-dichlorobiaryl represented by formula (2) below; and (b) contacting the one or more 2,2′-dichlorobiaryls with one or more H2N—Y compounds, in the presence of one or more palladium containing catalytic components; thereby forming one or more carbazoles represented by formula (3) below is provided.