公开(公告)号：US11084893B2

公开(公告)日：2021-08-10

申请号：US16617128

申请日：2018-06-01

Applicant: Dow Global Technologies LLC

Inventor： John O. Osby ,  Mehmet Demirors ,  Ivan A. Konstantinov

IPC: C08F10/02 ,  C08F210/18 ,  C08F210/02 ,  C08L101/00

Abstract: An ethylene-based polymer formed from reacting at least the following: ethylene and at least one asymmetrical polyene, and wherein the reaction takes place in the presence of at least one free-radical initiator; and wherein the at least one asymmetrical polyene is selected from Structure A, as described herein; Structure B, as described herein; or a combination of Structure A and Structure B.

公开(公告)号：US20210221924A1

公开(公告)日：2021-07-22

申请号：US17056473

申请日：2019-05-29

Applicant: Dow Global Technologies LLC

Inventor： Linfeng Chen ,  Mingzhe Yu ,  Mehmet Demirors ,  Andrew T. Heitsch ,  Jeffrey A. Sims ,  David Gordon Barton ,  Kurt F. Hirsekorn ,  Peter N. Nickias

IPC: C08F4/655 ,  C08F4/685 ,  C08F2/06 ,  C08F10/02

Abstract: A heterogeneous procatalyst includes a preformed heterogeneous procatalyst and a metal-ligand complex. The preformed heterogeneous procatalyst includes a titanium species and a magnesium chloride (MgCl2) support. The metal-ligand complex has a structural formula (L)aM(Y)m(XR2)b, where M is a metal cation; each L is a neutral ligand or (═O); each Y is a halide or (C1-C20)alkyl; each XR2 is an anionic ligand in which X is a heteroatom or a heteroatom-containing functional group and R2 is (C1-C20)hydrocarbyl or (C1-C20) heterohydrocarbyl; n is 0, 1, or 2; m is 0-4; and b is 1-6. The metal-ligand complex is overall charge neutral. The heterogeneous procatalyst exhibits improved average molecular weight capability. A catalyst system includes the heterogeneous procatalyst and a cocatalyst. Processes for producing the heterogeneous procatalyst and processes for producing ethylene-based polymers utilizing the heterogeneous procatalyst are also disclosed.

公开(公告)号：US11008412B2

公开(公告)日：2021-05-18

申请号：US16331658

申请日：2017-09-21

Applicant: Dow Global Technologies LLC

Inventor： Linfeng Chen ,  Mehmet Demirors

IPC: C08F210/16 ,  C08F210/02 ,  C08F210/14 ,  C08F4/654 ,  C08F4/659 ,  C08F4/64

Abstract: A method of polymerizing an olefin using a combination of a Ziegler-Natta catalyst and an unsupported molecular catalyst in a same reactor at the same time to give a polyolefin product, and the polyolefin product made by the method. Also, methods of preparing the combination of (pro)catalysts.

公开(公告)号：US20200332036A1

公开(公告)日：2020-10-22

申请号：US16956176

申请日：2018-12-19

Applicant: Dow Global Technologies LLC

Inventor： Didem Oner-Deliormanli ,  Yijian Lin ,  Mehmet Demirors ,  Jong-young Lee ,  David T. Gillespie

IPC: C08F210/16 ,  C08L23/08 ,  C08J5/18 ,  B32B27/32 ,  B32B27/08

Abstract: Embodiments of a polymer compositions and articles comprising such compositions contain at least one multimodal ethylene-based polymer, wherein the multimodal ethylene-based polymer exhibits superior low temperature performance.

公开(公告)号：US10730987B2

公开(公告)日：2020-08-04

申请号：US16072323

申请日：2017-01-26

Applicant: Dow Global Technologies LLC

Inventor： Mehmet Demirors ,  Sean Ewart ,  Teresa P. Karjala

IPC: C08K5/01 ,  C08F255/02 ,  C08F222/06 ,  C08K5/14 ,  C08K5/23 ,  C08F210/16

Abstract: Functionalized ethylene-based polymers are prepared by a process comprising the step of reacting a first composition comprising an ethylene-based polymer with at least the following: (A) at least one carbon-carbon (C—C) free radical initiator of Structure I: wherein R1, R2, R3, R4, R5 and R6 are each, independently, hydrogen or a hydrocarbyl group; and wherein, optionally, two or more R groups (R1, R2, R3, R4, R5 and R6) form a ring structure; and with the provisos that (i) at least one of R2 and R5 is a hydrocarbyl group of at least two carbon atoms, and (ii) at least one of R3 and R6 is a hydrocarbyl group of at least two carbon atoms; and (B) at least one free radical initiator other than the carbon-carbon (C—C) free radical initiator of Structure I (a non-C—C free radical initiator), e.g., a peroxide; and (C) at least one functionalization agent, e.g., maleic anhydride.

公开(公告)号：US10703869B2

公开(公告)日：2020-07-07

申请号：US14388735

申请日：2013-05-22

Applicant: Dow Global Technologies LLC

Inventor： Jian Wang ,  Nilesh R. Savargaonkar ,  Mehmet Demirors ,  John W. Garnett, IV

IPC: C08L25/00 ,  C08J5/18 ,  C08L23/08 ,  B29C48/10 ,  B29K23/00

Abstract: The instant invention provides a polyethylene blend-composition suitable for blown films, and films made therefrom. The polyethylene blend-composition suitable for blown films comprises the melt blending product of: (a) from 0.5 to 4 percent by weight of a low density polyethylene having a density in the range of from 0.915 to 0.935 g/cm3, and a melt index (I2) in the range of from greater than 0.8 to less than or equal to 5 g/10 minutes, and a molecular weight distribution (Mw/Mn) in the range of from 6 to 10; (b) 90 percent or greater by weight of an ethylene/α-olefin interpolymer composition, wherein ethylene/α-olefin interpolymer composition has a Comonomer Distribution Constant (CDC) in the range of from 75 to 200, a vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the ethylene/α-olefin interpolymer composition; a zero shear viscosity ratio (ZSVR) in the range from 2 to 20; a density in the range of from 0.903 to 0.950 g/cm3, a melt index (I2) in a range of from 0.1 to 5 g/10 minutes, a molecular weight distribution (Mw/Mn) in the range of from 1.8 to 3.5; (c) optionally a hydrotalcite based neutralizing agent; (d) optionally one or more nucleating agents; (e) and optionally one or more antioxidants.

公开(公告)号：US20190241686A1

公开(公告)日：2019-08-08

申请号：US16331644

申请日：2017-09-21

Applicant: Dow Global Technologies LLC

Inventor： Linfeng Chen ,  Mehmet Demirors

IPC: C08F210/16

CPC classification number: C08F210/16 ,  C08F10/00 ,  C08F2410/04 ,  C08F4/6545 ,  C08F4/64193 ,  C08F210/14 ,  C08F2500/05

Abstract: A modified Ziegler-Natta procatalyst that is a product mixture of modifying an initial Ziegler-Natta procatalyst with a molecular (pro)catalyst, and optionally an activator, the modifying occurring before activating the modified Ziegler-Natta procatalyst with an activator and before contacting the modified Ziegler-Natta procatalyst with a polymerizable olefin. Also, a modified catalyst system prepared therefrom, methods of preparing the modified Ziegler-Natta procatalyst and the modified catalyst system, a method of polymerizing an olefin using the modified catalyst system, and a polyolefin product made thereby.

公开(公告)号：US10059787B2

公开(公告)日：2018-08-28

申请号：US15357901

申请日：2016-11-21

Applicant: Dow Global Technologies LLC

Inventor： Mehmet Demirors ,  Ruth Figueroa ,  Jerzy Klosin ,  Pulikkottil J. Thomas ,  Sylvie Desjardins ,  Mridula Kapur ,  Philip P. Fontaine

IPC: C08F4/76 ,  C08F4/64 ,  C08F210/16 ,  C08F4/60 ,  C08F2/00

CPC classification number: C08F210/16 ,  C08F2/001 ,  C08F4/60193 ,  Y02P20/582 ,  C08F4/64193

Abstract: The instant invention provides a polymerization process for producing ethylene based polymers.In one embodiment, the instant invention provides a polymerization process for producing ethylene based polymers comprising: polymerizing ethylene with optionally one or more α-olefins in the presence of one or more first catalyst systems and optionally one or more second catalyst systems in a dual reactor system or a multiple reactor system, wherein first catalyst system comprises; (a) one ore more procatalysts comprising a metal-ligand complex of formula (I):

公开(公告)号：US20180009958A1

公开(公告)日：2018-01-11

申请号：US15652606

申请日：2017-07-18

Applicant: Dow Global Technologies LLC

Inventor： Jerzy Klosin ,  Ruth Figueroa ,  Pulikkottil J. Thomas ,  Mehmet Demirors ,  Sylvie Desjardins ,  Mridula Kapur ,  Philip P. Fontaine

IPC: C08J5/18 ,  C07F5/00 ,  C07F7/18 ,  C08L23/08 ,  C08F210/16 ,  C08L23/06 ,  B65D51/26 ,  C08F4/64 ,  C08L23/02 ,  C08F210/14

CPC classification number: C08J5/18 ,  B65D51/26 ,  C07F5/00 ,  C07F7/1804 ,  C08F4/60193 ,  C08F4/64186 ,  C08F210/14 ,  C08F210/16 ,  C08F2500/03 ,  C08J2323/08 ,  C08J2423/08 ,  C08L23/02 ,  C08L23/06 ,  C08L23/08 ,  C08L23/0815 ,  C08L2203/16 ,  C08L2205/02 ,  C08L2205/025 ,  C08L2205/03 ,  Y02P20/582 ,  C08F4/64193 ,  C08F2500/09 ,  C08F2500/12

Abstract: The instant invention provides procatalysts and catalyst systems for olefin polymerization, olefin based polymers polymerized therewith, and process for producing the same. In one embodiment, the instant invention provides a procatalyst comprising a metal-ligand complex of formula (I):

公开(公告)号：US09751998B2

公开(公告)日：2017-09-05

申请号：US14437543

申请日：2013-12-10

Applicant: Dow Global Technologies LLC

Inventor： Jerzy Klosin ,  Ruth Figueroa ,  Pulikkottil J. Thomas ,  Mehmet Demirors ,  Sylvie Desjardins ,  Mridula Kapur ,  Philip P. Fontaine

IPC: C08F4/76 ,  C08F4/64 ,  C08J5/18 ,  B65D51/26 ,  C08F210/16 ,  C08L23/06 ,  C08L23/08 ,  C07F5/00 ,  C07F7/18 ,  C08L23/02

CPC classification number: C08J5/18 ,  B65D51/26 ,  C07F5/00 ,  C07F7/1804 ,  C08F4/64186 ,  C08F210/14 ,  C08F210/16 ,  C08F2500/03 ,  C08J2323/08 ,  C08J2423/08 ,  C08L23/02 ,  C08L23/06 ,  C08L23/08 ,  C08L23/0815 ,  C08L2203/16 ,  C08L2205/02 ,  C08L2205/025 ,  C08L2205/03 ,  Y02P20/582 ,  C08F4/64193 ,  C08F2500/09 ,  C08F2500/12

Abstract: The instant invention provides procatalysts and catalyst systems for olefin polymerization, olefin based polymers polymerized therewith, and process for producing the same. In one embodiment, the instant invention provides a procatalyst comprising a metal-ligand complex of formula (I).