公开(公告)号：US20230146294A1

公开(公告)日：2023-05-11

申请号：US17801628

申请日：2021-02-10

Applicant: Dow Global Technologies LLC

Inventor： Hien Q. Do ,  Philip P. Fontaine ,  Arkady L. Krasovskiy ,  Liam P. Spencer ,  Kelli A. Ogawa ,  Daniel K. Lesniewski ,  Russell W. Anderson

IPC: C07F7/08 ,  C08F4/76 ,  C08F10/02 ,  C08F10/06

CPC classification number: C07F7/0812 ,  C07F7/081 ,  C08F4/76 ,  C08F10/02 ,  C08F10/06

Abstract: Embodiments are directed to a metal-ligand complex catalyst precursor, (L1)(L2)X(R1)(R2), and methods for producing the same from a compound of formula Q2X(R1)(R2). L1 and L2 are independently —R3—Z1 or —R4—Z1. R1 and R2 are independently selected from a hydrogen atom, (C1-C40)hydrocarbyl and, optionally, R1 and R2 are connected to form a ring having from 3 to 50 atoms in the ring, excluding hydrogen atoms. X is Si, Ge, Sn, or Pb. Each Q is independently Ar1—Y1R3— or Ar2—Y2—R4—. R3 and R4 are independently selected from —(CRC2)m—, where m is 1 or 2, and where each Rc is independently selected from the group consisting of (C1-C40)hydrocarbyl, (C1-C40)heterohydrocarbyl, and —H. Y1 and Y2 are independently S, Se, or Te. Ar1 and Ar2 are independently (C6-C50)aryl. Ar1—Y1—R3— and Ar2—Y2—R4— are not identical. Each Z1 is independently selected from Cl, Br, and I.

公开(公告)号：US11634569B2

公开(公告)日：2023-04-25

申请号：US16767749

申请日：2019-08-26

Applicant: Dow Global Technologies LLC

Inventor： Arkady L. Krasovskiy ,  Kefu Sun ,  Keran Lu ,  Scott T. Matteucci ,  Alexander Williamson ,  Jose Eduardo Ruiz ,  Jeffrey E. Bonekamp

IPC: C08L23/08 ,  C08K3/22

Abstract: A composition for odor control includes (A) from 85 wt % to 99.5 wt % of an olefin-based compound and (B) from 15 wt % to 0.5 wt % of an odor suppressant. The odor suppressant includes a blend of (i) an ionomer, (ii) particles of zinc oxide, and (iii) particles of copper oxide. The composition has a methyl mercaptan odor suppression value of greater than 45% as measured in accordance with ASTM D5504-12.

公开(公告)号：US11161949B2

公开(公告)日：2021-11-02

申请号：US16608648

申请日：2019-02-22

Applicant: Dow Global Technologies LLC ,  Rohm and Haas Company

Inventor： Arkady L. Krasovskiy ,  Kefu Sun ,  Keran Lu ,  Scott T. Matteucci ,  Alexander Williamson ,  Jose Eduardo Ruiz ,  Michelle Gallagher ,  Harpreet Singh

IPC: C08J5/18 ,  C08L23/06

Abstract: The present disclosure provides a film. In an embodiment, a film for suppressing odors is provided and includes a composition of (A) from 85 wt % to 99 wt % of a thermoplastic polymer and (B) from 15 wt % to 1 wt % of an odor suppressant. The odor suppressant is a blend composed of (Bi) particles of zinc oxide and (Bii) zinc ionomer. The zinc oxide particles (Bi) have a D50 particle size from 100 nm to 3000 nm, a surface area from 1 m2/g to 9 m2/g, and a porosity less than 0.020 m3/g. The composition has a methyl mercaptan odor suppression value less than 70 at 3 days exposure to methyl mercaptan as measured in accordance with ASTM D5504-12.

公开(公告)号：US11066489B2

公开(公告)日：2021-07-20

申请号：US16646237

申请日：2018-09-19

Applicant: Dow Global Technologies LLC

Inventor： Arkady L. Krasovskiy ,  David R. Wilson ,  Bryan D. Stubbert ,  Tulaza Vaidya ,  Jerzy Klosin ,  Edmund M. Carnahan ,  Philip P. Fontaine ,  Mari S. Rosen

IPC: C08F4/6592 ,  C07F7/08

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 —(CH2)SiRX3.

公开(公告)号：US11066428B2

公开(公告)日：2021-07-20

申请号：US16646228

申请日：2018-09-20

Applicant: Dow Global Technologies LLC

Inventor： Bryan D. Stubbert ,  Arkady L. Krasovskiy ,  Tulaza Vaidya ,  Jerzy Klosin ,  Edmund M. Carnahan ,  Philip P. Fontaine ,  Mari S. Rosen ,  David R. Wilson

IPC: C08F4/659 ,  C07F7/08 ,  C08F10/02

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.

公开(公告)号：US10968297B2

公开(公告)日：2021-04-06

申请号：US16333049

申请日：2017-09-13

Applicant: Dow Global Technologies LLC

Inventor： Arkady L. Krasovskiy ,  Endre Szuromi

IPC: C07C335/00 ,  C07C335/04 ,  C08F210/16 ,  C07F7/00

Abstract: Catalyst compositions and polymerization systems include at least one thiourea 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 thiourea complex is a bidentate thiourea ligand bound to the metal center and having Formula (Ia), Formula (Ib), or Formula (Ic): (Formulas should be inserted here). In Formulas (Ia), (Ib), and (Ic), each group R1, R2, and R3 is independently chosen from alkyl groups or aryl groups; each group Z1 or Z2 is independently chosen from alkylene groups. If a=2, groups R1 of the two groups Q are optionally linked, or groups R3 of the two groups Q are optionally linked. 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.

公开(公告)号：US20200277412A1

公开(公告)日：2020-09-03

申请号：US16646209

申请日：2018-09-19

Applicant: Dow Global Technologies LLC

Inventor： Arkady L. Krasovskiy ,  David R. Wilson ,  Tulaza Vaidya ,  Edmund M. Carnahan ,  Philip P. Fontaine ,  Carl N. Iverson

IPC: C08F4/64 ,  C08F10/02 ,  C08F210/16

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 X is selected from the group consisting of —ORX or NRX2.

公开(公告)号：US20200270282A1

公开(公告)日：2020-08-27

申请号：US16646228

申请日：2018-09-20

Applicant: Dow Global Technologies LLC

Inventor： Bryan D. Stubbert ,  Arkady L. Krasovskiy ,  Tulaza Vaidya ,  Jerzy Klosin ,  Edmund M. Carnahan ,  Philip P. Fontaine ,  Mari S. Rosen ,  David R. Wilson

IPC: C07F7/08 ,  C08F4/659 ,  C08F10/02

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.

公开(公告)号：US20200055018A1

公开(公告)日：2020-02-20

申请号：US16608985

申请日：2019-02-22

Applicant: Dow Global Technologies LLC ,  Rohm and Haas Company

Inventor： Arkady L. Krasovskiy ,  Kefu Sun ,  Keran Lu ,  Scott T. Matteucci ,  Alexander Williamson ,  Jose Eduardo Ruiz ,  Harpreet Singh ,  Michelle Gallagher ,  Jeffrey E. Bonekamp

IPC: B01J20/06 ,  B01J20/26 ,  B01J20/28 ,  B01J20/30 ,  A61L9/014

Abstract: The present disclosure provides a composition. In an embodiment, the composition includes (A) from 85 wt % to 99 wt % of an olefin-based polymer and (B) from 15 wt % to 1 wt % of an odor suppressant. The odor suppressant is a blend of (i) particles of zinc oxide, and (ii) zinc ionomer. The zinc oxide particles have a D50 particle size from 100 nm to 3000 nm, a surface area from 1 m2/g to 9 m2/g, and a porosity less than 0.020 m3/g. The composition has a methyl mercaptan odor suppression value of less than 70 at 3 days as measured in accordance with ASTM D5504-12.

公开(公告)号：US20190202950A1

公开(公告)日：2019-07-04

申请号：US16333049

申请日：2017-09-13

Applicant: Dow Global Technologies LLC

Inventor： Arkady L. Krasovskiy ,  Endre Szuromi

IPC: C08F210/16 ,  C07F7/00

CPC classification number: C08F210/16 ,  C07F7/003 ,  C08F2800/10 ,  C08F2800/20 ,  C08F210/14 ,  C08F2500/04 ,  C08F4/64041

Abstract: Catalyst compositions and polymerization systems include at least one thiourea 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 thiourea complex is a bidentate thiourea ligand bound to the metal center and having Formula (Ia), Formula (Ib), or Formula (Ic): (Formulas should be inserted here). In Formulas (Ia), (Ib), and (Ic), each group R1, R2, and R3 is independently chosen from alkyl groups or aryl groups; each group Z1 or Z2 is independently chosen from alkylene groups. If a=2, groups R1 of the two groups Q are optionally linked, or groups R3 of the two groups Q are optionally linked. 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.