公开(公告)号：WO2019157002A1

公开(公告)日：2019-08-15

申请号：PCT/US2019/016762

申请日：2019-02-06

Applicant: NORTHWESTERN UNIVERSITY

Inventor： MARKS, Tobin J. ,  GAO, Yanshan ,  LOHR, Tracy L. ,  WANG, Qian ,  CHUNG, Yip-Wah ,  PICKENS, David B., III.

IPC: C08F290/04 ,  C08F10/00 ,  C08F216/38 ,  C08F220/12 ,  C10L1/198

Abstract: Low molecular weight, highly branched polyolefins are provided. Also provided are catalyst-mediated methods of making the low molecular weight, highly branched polyolefins and a catalyst system for carrying out the methods. The catalyst system is a homogeneous catalytic system that includes a single-site organozirconium complex and hydrocarbon-soluble perfluoroarylborate co-catalyst that is highly active for the oligomerization of olefin monomers in non-polar media.

公开(公告)号：WO2021211423A1

公开(公告)日：2021-10-21

申请号：PCT/US2021/026822

申请日：2021-04-12

Applicant: NORTHWESTERN UNIVERSITY

Inventor： MARKS, Tobin J. ,  GAO, Yanshan ,  KRATISH, Yosi ,  LI, Jiaqi

IPC: C08J11/24 ,  C07C51/09 ,  C08J11/28

Abstract: A method for depolymerizing a polyester may comprise heating a polyester at a temperature and for a period of time in the presence of a supported metal-dioxo catalyst, optionally, in the presence of H2, to induce hydrogenolysis of ester groups in the polyester and provide monomers of the polyester.

公开(公告)号：WO2019191539A1

公开(公告)日：2019-10-03

申请号：PCT/US2019/024754

申请日：2019-03-29

Applicant: DOW GLOBAL TECHNOLOGIES LLC ,  NORTHWESTERN UNIVERSITY

Inventor： MARKS, Tobin J. ,  GAO, Yanshan ,  LOHR, Tracy L. ,  CHRISTIANSON, Matthew D. ,  KLOSIN, Jerzy ,  CARNAHAN, Edmund M. ,  YOUNG, Andrew J.

IPC: C08F10/02 ,  C08F4/6592 ,  C08F4/659 ,  C07F5/02

Abstract: Embodiments are directed to catalyst systems comprising: a procatalyst; and a co-catalyst, the co-catalyst comprising: a non-coordinating borate anion having the formula [B(C 6 F 5 ) 4 ] 1- and a cation according to formula (I).

公开(公告)号：WO2022133142A1

公开(公告)日：2022-06-23

申请号：PCT/US2021/063913

申请日：2021-12-16

Applicant: DOW GLOBAL TECHNOLOGIES LLC ,  NORTHWESTERN UNIVERSITY

Inventor： AUYEUNG, Evelyn ,  BAILLIE, Rhett A. ,  KARJALA, Thomas Wesley, Jr. ,  ZHOU, Zhe ,  MUNRO, Jeffrey C. ,  LI PI SHAN, Colin ,  HUSTAD, Phillip D. ,  MARKS, Tobin J. ,  GAO, Yanshan

IPC: C08F2/38 ,  C08F210/02 ,  C08F212/08 ,  C08F4/52 ,  C08F4/64 ,  C08F297/08 ,  C08F2/06

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：WO2019191440A1

公开(公告)日：2019-10-03

申请号：PCT/US2019/024599

申请日：2019-03-28

Applicant: DOW GLOBAL TECHNOLOGIES LLC ,  NORTHWESTERN UNIVERSITY

Inventor： MARKS, Tobin J. ,  GAO, Yanshan ,  LOHR, Tracy L. ,  CHRISTIANSON, Matthew D. ,  KLOSIN, Jerzy ,  CARNAHAN, Edmund M. ,  YOUNG, Andrew J.

IPC: C08F4/659 ,  C08F10/02 ,  C08F4/6592

Abstract: Embodiments are directed to catalyst systems comprising: a procatalyst; and a co-catalyst dissolved in a non-halogenated aprotic hydrocarbon solvent, the co-catalyst comprising: a non-coordinating borate dianion having the formula: (III) and two cations, each cation being independently chosen from a cation according to formula (I) or formula (II).