公开(公告)号：US20220073539A1

公开(公告)日：2022-03-10

申请号：US17419272

申请日：2019-12-27

Applicant: Dow Global Technologies LLC

Inventor： Lixin Sun ,  Endre Szuromi ,  Edmund M. Carnahan

IPC: C07F5/06 ,  C07F3/06 ,  C08F2/38 ,  C08F210/16 ,  C08F210/06

Abstract: Embodiments relate to organometallic compositions that are useful for chain transfer during olefin polymerization. Such compositions are chain transfer agents comprising an organoaluminum compound of the formula Al(CH2CH(Y2)A2)3 and an organozinc compound of the formula Zn(CH2CH(Y2)A2)2.

公开(公告)号：US11168161B2

公开(公告)日：2021-11-09

申请号：US16621492

申请日：2018-06-20

Applicant: Dow Global Technologies LLC

Inventor： Andrew M. Camelio ,  Endre Szuromi ,  David D. Devore ,  Robert D. J. Froese

IPC: C08F210/16 ,  C08F4/64 ,  C08F4/659 ,  C07F7/28

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：US20210277166A1

公开(公告)日：2021-09-09

申请号：US16321567

申请日：2017-07-19

Applicant: Beverly Walton ,  Dow Global Technologies LLC

Inventor： Endre Szuromi ,  Justin M. Virgill ,  Robert F. Wendel ,  Jeffrey C. Munro ,  Gary R. Marchand ,  Edmund M. Carnahan

IPC: C08F297/08

Abstract: Semi-crystalline, thermoplastic polyolefin block copolymers comprising: (A) A first polyolefin A block comprising isotactic poly(1-butene) (iPB); (B) A polyolefin B block comprising an ethylene and/or alpha-olefin/1-butene copolymer or terpolymer; and (C) A second polyolefin A block comprising isotactic poly(1-butene) (iPB); the A and B blocks bonded to one another to form a block copolymer in which the first and second polyolefin A blocks are joined to and separated by the polyolefin B block. In one embodiment the polyolefin block copolymer is a BAB block copolymer.

公开(公告)号：US11066488B2

公开(公告)日：2021-07-20

申请号：US16620306

申请日：2018-06-18

Applicant: Dow Global Technologies LLC

Inventor： Endre Szuromi ,  David D. Devore ,  Robert D. J. Froese ,  Arkady L. Krasovskiy ,  Lixin Sun ,  Kevin A. Frazier ,  Joseph S. Renny

IPC: C08F4/64 ,  C08F110/02 ,  C08F210/16 ,  C08F4/659

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:

公开(公告)号：US20200332045A1

公开(公告)日：2020-10-22

申请号：US16959008

申请日：2018-12-27

Applicant: Dow Global Technologies LLC

Inventor： Lixin Sun ,  Endre Szuromi ,  Jerzy Kiosin ,  Edmund M. Camahan ,  Jasson T. Patton ,  Longyan Liao

IPC: C08F293/00 ,  C07F5/06 ,  C07F7/08 ,  C07F7/00

Abstract: The present disclosure relates to a capped dual-headed organoaluminum composition having the formula (I) and processes to prepare the same. In at least one aspect, the capped dual-headed organoaluminum compositions can be used in olefin polymerization.

公开(公告)号：US10526431B2

公开(公告)日：2020-01-07

申请号：US15310460

申请日：2015-06-29

Applicant: Dow Global Technologies LLC

Inventor： Philip P. Fontaine ,  Jerzy Klosin ,  Endre Szuromi ,  Carl N. Iverson ,  Zach T. Rickaway ,  Andrew J. Young ,  Susan G. Brown ,  Ruth Figueroa

IPC: C08F210/16 ,  C07F7/00 ,  C07F7/28 ,  B01J31/22 ,  C08F4/659

Abstract: The instant invention provides a procatalyst comprising a metal-ligand complex of Formula (I): (Formula I), wherein M, X, n, each Z, L, R21, R22 and R1 through R20 are each described herein.

公开(公告)号：US20190263949A1

公开(公告)日：2019-08-29

申请号：US16333071

申请日：2017-09-14

Applicant: Dow Global Technologies LLC

Inventor： Arkady L. Krasovskiy ,  Endre Szuromi

IPC: C08F210/16 ,  C07F7/00

Abstract: Catalyst compositions and polymerization systems include at least one thioguanidine complex according to Formula (I): MQaX4_a (I) in which M is Ti, Zr, or Hf; a is 1 or 2; each group Q of the thioguanidine complex is a bidentate thioguanidine ligand bound to the metal center and having Formula (1a) or Formula (1b), In Formulas (1a) and (1b), each group R1, R2, and R3 is independently chosen from alkyl groups or aryl groups; each group Z1 is independently chosen from alkylene groups. If a=2, groups R3 of the two groups Q are optionally linked to each other through at least one covalent bond. Each X is covalently bonded or coordinated to the metal center and is independently chosen from alkyl groups or halides. The polymerization systems may be configured to copolymerize ethylene and α-olefins.