公开(公告)号：US10717790B2

公开(公告)日：2020-07-21

申请号：US15565624

申请日：2016-03-10

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Xuan Ye ,  Matthew W. Holtcamp ,  Laughlin G. McCullough ,  Jo Ann M. Canich ,  David F. Sanders ,  Gregory S. Day ,  Michelle E. Titone

IPC: C08F4/02 ,  C08F4/6592 ,  C08F210/16 ,  B01J31/22 ,  C08F210/14 ,  C08F4/659

Abstract: This invention relates to a catalyst system including fluorided silica, alkylalumoxane activator and a bridged monocyclopentadienyl group 4 transition metal compound, where the fluorided support has not been calcined at a temperature of 400° C. or more, and is preferably, produced using a wet mix method, particularly an aqueous method.

公开(公告)号：US10676547B2

公开(公告)日：2020-06-09

申请号：US15744475

申请日：2016-08-10

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Matthew W. Holtcamp ,  Gregory S. Day ,  John R. Hagadorn ,  Patrick J. Palafox ,  Ramyaa Mathialagan ,  Jo Ann M. Canich

IPC: C08F4/642 ,  C08F4/6592 ,  C08F10/02 ,  C08F210/16 ,  C08F4/659

Abstract: This invention relates to organoaluminum compounds, organoaluminum activator systems, preferably supported, to polymerization catalyst systems containing these activator systems, and to polymerization processes utilizing the same. In particular, this invention relates to catalyst systems comprising ion-exchange layered silicate, a catalyst compound, an activator and an aluminum compound represented by formula: Al(R′)3−v(R″)v, wherein each R′, independently, is a C1-C30 hydrocarbyl group; each R″, independently, is a C4-C20 hydrocarbenyl group; and v is from 0.1 to 3.

公开(公告)号：US10562987B2

公开(公告)日：2020-02-18

申请号：US15869984

申请日：2018-01-12

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Jo Ann M. Canich ,  John R. Hagadorn

IPC: C08F4/649 ,  C08F4/659 ,  C08F2/38 ,  C08F110/02 ,  C08F110/06 ,  C08F110/14

Abstract: Catalyst systems with single site transition metal complexes (such as quinolinyldiamide transition metal complexes), an activator, and a metal hydrocarbenyl transfer agent (preferably an aluminum vinyl-transfer agent) are disclosed for use in alkene polymerization.

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：US20190248936A1

公开(公告)日：2019-08-15

申请号：US16270085

申请日：2019-02-07

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Jian Yang ,  Jo Ann M. Canich ,  Hua Zhou ,  Jennifer L. Rapp

IPC: C08F210/16 ,  C08F4/6592 ,  C08F4/659

CPC classification number: C08F210/16 ,  C08F4/65908 ,  C08F4/65912 ,  C08F4/65922

Abstract: A process for making a poly alpha-olefin (PAO) having a relatively high vinylidene content (or combined vinylidene and tri-substituted vinylene content) and a relatively low vinyl and/or di-substituted vinylene content, as well as a relatively low molecular weight. The process includes: contacting a feed containing a C2-C32 alpha-olefin with a catalyst system comprising activator and a bis-cyclopentadienyl metallocene compound, typically a cyclopentadienyl-benzindenyl group 4 transition metal compound.

公开(公告)号：US20190169322A1

公开(公告)日：2019-06-06

申请号：US16315722

申请日：2017-06-14

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Francis C. Rix ,  Rhutesh K. Shah ,  Rainer Kolb ,  Jo Ann M. Canich ,  Peijun Jiang ,  Periagaram S. Ravishankar ,  Syamal Tallury

IPC: C08F4/659 ,  C08F4/6192 ,  C08F110/06 ,  B01J31/22

Abstract: Processes are provided which include copolymerization using two different metallocene catalysts, one capable of producing high Mooney-viscosity polymers and one suitable for producing lower Mooney-viscosity polymers having at least a portion of vinyl terminations. The two catalysts may be used together in polymerization to produce copolymer compositions of particularly well-tuned properties. For instance, polymerizations are contemplated to produce high-Mooney metallocene polymers that exhibit excellent processability and elasticity, notwithstanding their high Mooney viscosity. Other polymerizations are also contemplated in which lower-Mooney metallocene polymers are produced, which also exhibit excellent processability and elasticity, while furthermore having excellent cure properties suitable in curable elastomer compound applications. Many of the contemplated polymerizations include controlling the ratio of the two metallocene catalysts used in the polymerization so as to obtain the desired Mooney viscosity and desired rheology (indicated by Mooney Relaxation Area) of the copolymer compositions.

公开(公告)号：US20180251586A1

公开(公告)日：2018-09-06

申请号：US15869941

申请日：2018-01-12

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Jo Ann M. Canich ,  John R. Hagadom ,  Peijun Jiang

IPC: C08F210/16

CPC classification number: C08F210/16 ,  C08F4/659 ,  C08F4/65908 ,  C08F4/65916 ,  C08F2800/10 ,  C08F210/14 ,  C08F2500/02 ,  C08F2500/03 ,  C08F2500/06 ,  C08F2500/12 ,  C08F2500/20 ,  C08F4/65912 ,  C08F4/64148

Abstract: This invention relates to the use of pyridyldiamido and/or quinolinyldiamido transition metal complexes and catalyst systems with an activator and a metal hydrocarbenyl chain transfer agent, such as an aluminum vinyl-transfer agent (AVTA), to produce branched ethylene copolymers, preferably ethylene-butene, ethylene-hexene and ethylene-octene copolymers.

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：US20180201700A1

公开(公告)日：2018-07-19

申请号：US15744475

申请日：2016-08-10

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Matthew W. Holtcamp ,  Gregory S. Day ,  John R. Hagadorn ,  Patrick J. Palafox ,  Ramyaa Mathialagan ,  Jo Ann M. Canich

IPC: C08F10/02

Abstract: This invention relates to organoaluminum compounds, organoaluminum activator systems, preferably supported, to polymerization catalyst systems containing these activator systems, and to polymerization processes utilizing the same. In particular, this invention relates to catalyst systems comprising ion-exchange layered silicate, a catalyst compound, an activator and an aluminum compound represented by formula: Al(R′)3−v(R″)v, wherein each R′, independently, is a C1-C30 hydrocarbyl group; each R″, independently, is a C4-C20 hydrocarbenyl group; and v is from 0.1 to 3.