公开(公告)号：US10047178B2

公开(公告)日：2018-08-14

申请号：US15426670

申请日：2017-02-07

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Aaron H. Reed ,  Periagaram S. Ravishankar ,  Florin Barsan

IPC: C08F210/18 ,  C08F6/02 ,  C08F2/04 ,  C08F6/00 ,  C08F210/02

CPC classification number: C08F210/18 ,  C08F6/001 ,  C08F6/02 ,  C08F210/06 ,  C08F236/20 ,  C08F2500/25 ,  C08F2500/26 ,  C08F2/42 ,  C08L23/16

Abstract: This disclosure relates to a process for polymerization, and in particular to minimizing undesired polymerization reactions downstream of a polymerization reaction zone, for instance by use of a quenching agent that enables fast reaction rates with active polymerization catalyst in the polymerization effluent, so as to quench the catalyst quickly, thereby preventing uncontrolled polymerization reactions. A preferred quenching agent is methanol. Also provided are means for treating polymer recycle streams containing oxygenates, which may result from the use of such quench agents, particularly in polymerization processes including polyene (e.g., diene) monomers.

公开(公告)号：US20180223022A1

公开(公告)日：2018-08-09

申请号：US15749866

申请日：2016-08-17

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Gabor Kiss ,  Jo Ann M. Canich ,  Guy J. Wouters ,  Robert P. Reynolds ,  Rainer Kolb ,  David J. Lohse ,  Florin Barsan

IPC: C08F210/18

CPC classification number: C08F210/18 ,  C08F4/65908 ,  C08F4/65912 ,  C08F4/65927 ,  C08F210/06 ,  C08F236/20 ,  C08F2500/25 ,  C08F2500/09

Abstract: Branched ethylene-propylene-diene elastomers (bEPDM) and processes for making the bEPDM's comprising combining a catalyst precursor and an activator at a temperature within a range from 90° C. to 160° C. with ethylene, a C3 to C12 α-olefin, a non-conjugated diene, and a dual-polymerizable diene, where the catalyst precursor is a metallocene catalyst precursor, preferably according to one of various structures including any two ligands selected from cyclopentadienyl ligands and ligands isolobal to the cyclopentadienyl group.

公开(公告)号：US09260635B2

公开(公告)日：2016-02-16

申请号：US14378011

申请日：2013-02-28

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Periagaram S. Ravishankar ,  Yu Feng Wang ,  Luke P. Stephens ,  Florin Barsan ,  Douglas A. Berti

IPC: C08F2/00 ,  C09J123/16 ,  C08F110/04 ,  C08F110/02 ,  C08L23/08

CPC classification number: C08L23/10 ,  C08F2/001 ,  C08F110/02 ,  C08F110/04 ,  C08L23/08 ,  C08L23/12 ,  C08L2205/02 ,  C08L2205/025 ,  C09J123/10 ,  C09J123/12 ,  C09J123/16

Abstract: A blended multimodal polymer product is disclosed that comprises a first polymer, wherein the first polymer is a homopolymer of propylene or a propylene copolymer having an ethylene or a C4 to C10 olefin comonomer; and a second polymer, wherein the second polymer is a propylene homopolymer and a propylene copolymer having an ethylene or a C4 to C10 olefin comonomer, and wherein the first polymer and second polymer have a difference in heat of fusion of about 25 J/g or more. Methods for making such a polymer product using at least two reactors in parallel and for separating a propylene-based polymer from a solvent using a liquid-phase separator are also disclosed.

Abstract translation: 公开了一种混合多峰聚合物产品，其包含第一聚合物，其中第一聚合物是丙烯的均聚物或具有乙烯或C 4至C 10烯烃共聚单体的丙烯共聚物; 和第二聚合物，其中所述第二聚合物是丙烯均聚物和具有乙烯或C 4至C 10烯烃共聚单体的丙烯共聚物，并且其中所述第一聚合物和第二聚合物的熔融热差别为约25J / g或 更多。 还公开了使用至少两个平行的反应器制造这种聚合物产物并使用液相分离器从溶剂中分离丙烯类聚合物的方法。

公开(公告)号：US11597782B2

公开(公告)日：2023-03-07

申请号：US17121220

申请日：2020-12-14

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Jo Ann M. Canich ,  John R. Hagadorn ,  Rhutesh Shah ,  Florin Barsan ,  Sarah J. Mattler

IPC: C08F210/18 ,  C08F4/6592 ,  C08F4/659 ,  C08F4/649 ,  C08F2/38 ,  C08F210/16 ,  C08J3/24 ,  C09J123/16 ,  C08F236/20 ,  B60C1/00 ,  C08L23/16

Abstract: The present disclosure provides methods for producing an olefin polymer by contacting a C3-C40 olefin, ethylene and a diene with a catalyst system including an activator and a metallocene catalyst compound comprising a substituted or unsubstituted indacenyl group and obtaining a C3-C40 olefin-ethylene-diene terpolymer typically comprising from 1 to 35 mol % of ethylene, from 98.9 to 65 mol % C3-C40 olefin, and, optionally, from 0.1 to 10 mol % diene. Preferably, a propylene-ethylene-ethylidene norbornene is obtained.

公开(公告)号：US20210122842A1

公开(公告)日：2021-04-29

申请号：US17121220

申请日：2020-12-14

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Jo Ann M. Canich ,  John R. Hagadorn ,  Rhutesh Shah ,  Florin Barsan ,  Sarah J. Mattler

IPC: C08F4/6592 ,  C08F4/659 ,  C08F4/649 ,  C08F2/38 ,  C08F210/18 ,  C08F210/16 ,  C08J3/24 ,  C09J123/16

Abstract: The present disclosure provides methods for producing an olefin polymer by contacting a C3-C40 olefin, ethylene and a diene with a catalyst system including an activator and a metallocene catalyst compound comprising a substituted or unsubstituted indacenyl group and obtaining a C3-C40 olefin-ethylene-diene terpolymer typically comprising from 1 to 35 mol % of ethylene, from 98.9 to 65 mol % C3-C40 olefin, and, optionally, from 0.1 to 10 mol % diene. Preferably, a propylene-ethylene-ethylidene norbornene is obtained.

公开(公告)号：US20190284318A1

公开(公告)日：2019-09-19

申请号：US16356772

申请日：2019-03-18

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Jo Ann M. Canich ,  John R. Hagadorn ,  Rhutesh K. Shah ,  Florin Barsan ,  Sarah J. Mattler ,  Chase A. Eckert ,  Zhifeng Bai

IPC: C08F210/16 ,  C09J123/16 ,  C08J3/24

Abstract: The present disclosure provides methods for producing an olefin polymer by contacting a C3-C40 olefin, ethylene and a diene with a catalyst system including an activator and a metallocene catalyst compound comprising a substituted or unsubstituted indacenyl group and obtaining a C3-C40 olefin-ethylene-diene terpolymer typically comprising from 30 to 55 mol % ethylene, from 69.09 to 45 mol % C3 to C40 comonomer, and from 0.01 to 7 mol % diene wherein the Tg of the terpolymer is −28° C. or less. Preferably, a propylene-ethylene-ethylidene norbornene is obtained.

公开(公告)号：US20190284311A1

公开(公告)日：2019-09-19

申请号：US16356588

申请日：2019-03-18

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Jo Ann M. Canich ,  John R. Hagadorn ,  Rhutesh K. Shah ,  Florin Barsan ,  Sarah J. Mattler

IPC: C08F4/6592 ,  C08F4/659 ,  C08F4/649 ,  C08F210/18 ,  C08F2/38

Abstract: The present disclosure provides methods for producing an olefin polymer by contacting a C3-C40 olefin, ethylene and a diene with a catalyst system including an activator and a metallocene catalyst compound comprising a substituted or unsubstituted indacenyl group and obtaining a C3-C40 olefin-ethylene-diene terpolymer typically comprising from 1 to 35 mol % of ethylene, from 98.9 to 65 mol % C3-C40 olefin, and, optionally, from 0.1 to 10 mol % diene. Preferably, a propylene-ethylene-ethylidene norbornene is obtained.

公开(公告)号：US20180237612A1

公开(公告)日：2018-08-23

申请号：US15517440

申请日：2015-10-02

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： John P. Soisson ,  Christopher B. Friedersdorf ,  Kyle B. Hancock ,  Florin Barsan ,  Jo Ann M. Canich

IPC: C08K5/01 ,  C08J3/18 ,  C08F6/00

CPC classification number: C08K5/01 ,  C08F6/003 ,  C08J3/18 ,  C08J3/20 ,  C08J2323/16 ,  C08K5/0016 ,  C08L23/00

Abstract: The invention relates to purification of plasticizer, particularly for use in a polymer production process and plant. More particularly, the invention relates to purification of plasticizer, such as by gas stripping, for use in a process for in-line blending of polymer and plasticizer.

公开(公告)号：US20170145129A1

公开(公告)日：2017-05-25

申请号：US15426670

申请日：2017-02-07

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Aaron H. Reed ,  Periagaram S. Ravishankar ,  Florin Barsan

IPC: C08F210/06

CPC classification number: C08F210/18 ,  C08F6/001 ,  C08F6/02 ,  C08F210/06 ,  C08F236/20 ,  C08F2500/25 ,  C08F2500/26 ,  C08F2/42 ,  C08L23/16

Abstract: This disclosure relates to a process for polymerization, and in particular to minimizing undesired polymerization reactions downstream of a polymerization reaction zone, for instance by use of a quenching agent that enables fast reaction rates with active polymerization catalyst in the polymerization effluent, so as to quench the catalyst quickly, thereby preventing uncontrolled polymerization reactions. A preferred quenching agent is methanol. Also provided are means for treating polymer recycle streams containing oxygenates, which may result from the use of such quench agents, particularly in polymerization processes including polyene (e.g., diene) monomers.