公开(公告)号：WO2020205593A1

公开(公告)日：2020-10-08

申请号：PCT/US2020/025397

申请日：2020-03-27

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： FROESE, Robert DJ ,  BROONER, Rachel E. M. ,  ARRIOLA, Daniel J. ,  STUBBERT, Bryan D. ,  REDWINE, Oscar D.

IPC: C08F210/18 ,  C08F4/64

Abstract: Processes of synthesizing long-chain branched polymers. The processes include contacting together one or more C 2 -C 14 alkene monomers, at least one diene, optionally a solvent, and a multi-chain catalyst optionally in the presence of hydrogen, wherein the multi-chain catalyst comprises a plurality of polymerization sites; producing at least two polymer chains of the C 2 -C 14 alkene monomers, each polymer chain polymerizing at one of the polymerization sites; synthesizing the long-chain branched polymers by connecting the two polymer chains with the diene, the joining of the two polymer chains being performed in a concerted manner during the polymerization; and producing tri-functional long chain branches and tetra-functional long chain branches from the diene, wherein the long-chain branched polymers have a ratio of tri-functional to tetra-functional long chain branches from 0.05:1 to 100:0; and adjusting the ratio of tri-functional and tetra-functional long chain branches. The diene has a structure according to formula (I):

公开(公告)号：WO2021222694A1

公开(公告)日：2021-11-04

申请号：PCT/US2021/030073

申请日：2021-04-30

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： KRASOVSKIY, Arkady L. ,  AUYEUNG, Evelyn ,  STUBBERT, Bryan D. ,  DAVIS, Anna V. ,  HOU, Jianbo ,  CUMMINS, Clark H.

IPC: C08F293/00 ,  C08F290/04

Abstract: The present disclosure relates to a process for preparing an olefin-acrylate block copolymer, the process comprising: a) performing reversible addition-fragmentation chain-transfer (RAFT) polymerization by combining RAFT materials comprising an acrylate monomer, a radical initiator, and a RAFT agent, thereby forming a macroinitiator; and b) combining reaction materials comprising an alpha-substituted acrylate, a radical initiator, and the macroinitiator, thereby forming the olefin-acrylate block copolymer.

公开(公告)号：WO2020069365A1

公开(公告)日：2020-04-02

申请号：PCT/US2019/053529

申请日：2019-09-27

Applicant: DOW GLOBAL TECHNOLOGIES LLC

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

IPC: C08F210/16

Abstract: Ethylene-based polymers comprise reaction products of polymerizing ethylene monomer, at least one diene or polyene comonomer, and optionally at least one C 3 to C 14 comonomer under defined polymerization reaction conditions, the ethylene-based polymer having: an M w /M w0 greater than 1.20. The M w0 is the initial weight-average molecular weight of a comparative ethylene-based polymer by gel permeation chromatography. The comparative ethylene-based polymer being a reaction product of polymerizing ethylene monomer and all C 3 to C 14 comonomers present in the ethylene-based polymer, if any, without the at least one polyene comonomer, under the defined polymerization reaction conditions; and a molecular weight tail quantified by an MWD area metric, A TAIL , and A TAIL is less than or equal to 0.04 as determined by gel permeation chromatography using a triple detector.

公开(公告)号：WO2019067274A8

公开(公告)日：2019-04-04

申请号：PCT/US2018/051638

申请日：2018-09-19

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： KRASOVSKIY, Arkady L. ,  WILSON, David R. ,  STUBBERT, Bryan D. ,  VAIDYA, Tulaza ,  KLOSIN, Jerzy ,  CARNAHAN, Edmund M. ,  FONTAINE, Philip P. ,  ROSEN, Mari S.

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

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 -(CH 2 )SiR X 3 .

公开(公告)号：WO2021222655A1

公开(公告)日：2021-11-04

申请号：PCT/US2021/030008

申请日：2021-04-29

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： KRASOVSKIY, Arkady L. ,  AUYEUNG, Evelyn ,  STUBBERT, Bryan D. ,  DAVIS, Anna V. ,  HOU, Jianbo ,  CUMMINS, Clark H.

IPC: C08F293/00 ,  C08F220/18 ,  C08F290/04 ,  C08F220/1804 ,  C08F2438/01 ,  C08F290/042 ,  C08F293/005

Abstract: The present disclosure relates to a process for preparing an olefin-acrylate block copolymer, the process comprising: a) performing atom transfer radical polymerization (ATRP) by combining ATRP materials comprising an acrylate monomer, an initiator having a radically transferrable atom or group, a transition metal compound, and a ligand, thereby forming a macroinitiator; and b) combining reaction materials comprising an alpha-substituted acrylate and the macroinitiator, thereby forming the olefin-acrylate block copolymer.

公开(公告)号：WO2020264261A1

公开(公告)日：2020-12-30

申请号：PCT/US2020/039771

申请日：2020-06-26

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： STUBBERT, Bryan D.

IPC: C08F210/16 ,  C08F4/64

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

公开(公告)号：WO2019067274A4

公开(公告)日：2019-04-04

申请号：PCT/US2018/051638

申请日：2018-09-19

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： KRASOVSKIY, Arkady L. ,  WILSON, David R. ,  STUBBERT, Bryan D. ,  VAIDYA, Tulaza ,  KLOSIN, Jerzy ,  CARNAHAN, Edmund M. ,  FONTAINE, Philip P. ,  ROSEN, Mari S.

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

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 -(CH 2 )SiR X 3 .

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：WO2020028240A1

公开(公告)日：2020-02-06

申请号：PCT/US2019/043896

申请日：2019-07-29

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： STUBBERT, Bryan D.

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

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：WO2019067300A1

公开(公告)日：2019-04-04

申请号：PCT/US2018/051939

申请日：2018-09-20

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： STUBBERT, Bryan D. ,  KRASOVSKIY, Arkady L. ,  VAIDYA, Tulaza ,  KLOSIN, Jerzy ,  CARNAHAN, Edmund M. ,  FONTAINE, Philip P. ,  ROSEN, Mari S. ,  WILSON, David R.

IPC: C08F210/16 ,  C08F4/64

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.