公开(公告)号：WO2020243241A1

公开(公告)日：2020-12-03

申请号：PCT/US2020/034832

申请日：2020-05-28

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： CAMELIO, Andrew M. ,  BAILEY, Brad C. ,  FROESE, Robert D. J. ,  MUKHOPADHYAY, Sukrit

IPC: C08F210/16 ,  C08F4/659

Abstract: Processes for polymerizing polyolefins include contacting ethylene and optionally one or more (C 3 -C 12 )α-olefin in the presence of a catalyst system, wherein the catalyst system comprises a metal-ligand complex having a structure according to formula (I).

公开(公告)号：WO2018236863A8

公开(公告)日：2018-12-27

申请号：PCT/US2018/038275

申请日：2018-06-19

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： CAMELIO, Andrew M. ,  SZUROMI, Endre ,  DEVORE, David D. ,  FROESE, Robert D. J.

IPC: C08F4/659 ,  C08F210/16

Abstract: Embodiments are directed to catalyst systems comprising at least one metal ligand complex and to processes for polyolefin polymerization incorporating the catalyst systems. The metal ligand complexes have the following structures: (I)

公开(公告)号：WO2020069362A1

公开(公告)日：2020-04-02

申请号：PCT/US2019/053524

申请日：2019-09-27

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： FROESE, Robert D. J. ,  ARRIOLA, Daniel J. ,  STUBBERT, Bryan D.

IPC: C08F210/18

Abstract: The present process embodiments for synthesizing long-chain branched copolymers include contacting together one or more C 2 -C 14 alkene monomers, at least one diene or polyene, optionally a solvent, and a multi-chain catalyst. The multi-chain catalyst includes a plurality of polymerization sites and produces at least two polymer chains of the C 2 -C 14 alkene monomers, each polymer chain polymerizing at one of the polymerization sites. The process synthesizes the long-chain branched polymers by connecting the two polymer chains with the diene or polyene, the joining of the two polymer chains being performed in a concerted manner during the polymerization.

公开(公告)号：WO2018236996A1

公开(公告)日：2018-12-27

申请号：PCT/US2018/038492

申请日：2018-06-20

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： CAMELIO, Andrew M. ,  SZUROMI, Endre ,  DEVORE, David D. ,  FROESE, Robert D. J.

IPC: C08F4/659 ,  C08F210/16

Abstract: Embodiments are directed to catalyst systems comprising at least one metal ligand complex and to processes for polyolefin polymerization incorporating the catalyst systems. The metal ligand complexes have the following structures: (I)

公开(公告)号：WO2018236863A1

公开(公告)日：2018-12-27

申请号：PCT/US2018/038275

申请日：2018-06-19

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： CAMELIO, Andrew M. ,  SZUROMI, Endre ,  DEVORE, David D. ,  FROESE, Robert D. J.

IPC: C08F4/659 ,  C08F210/16

Abstract: Embodiments are directed to catalyst systems comprising at least one metal ligand complex and to processes for polyolefin polymerization incorporating the catalyst systems. The metal ligand complexes have the following structures: