公开(公告)号：US10882925B2

公开(公告)日：2021-01-05

申请号：US16192654

申请日：2018-11-15

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Jian Yang ,  Gregory J. Karahalis ,  John R. Hagadorn ,  Timothy M. Boller ,  Evan J. Morris ,  Patrick Brant

IPC: C07F17/00 ,  C08F4/6592 ,  C08F210/16 ,  C08F4/659 ,  C08F10/02 ,  C08J5/18 ,  B32B27/08 ,  C08F2/34

Abstract: The present disclosure relates to ansa-metallocene catalyst compounds that include (1) a first indenyl ligand substituted at the 3-position with a substituted or unsubstituted C4-C40 hydrocarbyl group, wherein the hydrocarbyl group is branched at the β-position, and (2) a second indenyl ligand substituted at its 3-position with a substituted or unsubstituted alkyl group or a β-branched alkyl group. Catalyst systems prepared with the catalyst compounds, polymerization methods using such catalyst systems, and polyolefins made using the polymerization methods are also described.

公开(公告)号：US20190144571A1

公开(公告)日：2019-05-16

申请号：US16182856

申请日：2018-11-07

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Jian Yang ,  Gregory J. Karahalis ,  Timothy M. Boller ,  Yan Jiang

IPC: C08F10/02 ,  C07F17/00

Abstract: This invention relates to catalyst systems comprising a catalyst compound having a bridged group 4 metal metallocene (where the bridge preferably contains an (Me2Si)2 group, an activator, and a support material. In some embodiments, the present disclosure provides for polyolefins and a process for producing a polyolefin composition comprising contacting at least one olefin with a catalyst system.

公开(公告)号：US10954328B2

公开(公告)日：2021-03-23

申请号：US16191375

申请日：2018-11-14

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Donna J. Crowther ,  Timothy M. Boller ,  Richard B. Pannell ,  Jeanette M. Diop ,  Wen Li

IPC: C08F4/76 ,  C08F4/64 ,  C08F210/00 ,  C08F210/16 ,  C08F2/14 ,  C08F4/659

Abstract: Polymerization processes to produce polyolefin polymers, for example, polyethylene polymers, from catalyst systems comprising one or more olefin polymerization catalysts and at least one activator are provided. The polyolefin polymers may have a Broad Orthogonal Composition Distribution (BOCD).

公开(公告)号：US11214631B2

公开(公告)日：2022-01-04

申请号：US16182856

申请日：2018-11-07

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Jian Yang ,  Gregory J. Karahalis ,  Timothy M. Boller ,  Yan Jiang

IPC: C07F17/00 ,  C08F4/6592 ,  C08F210/16 ,  C08F10/02 ,  C08F2/34

Abstract: This invention relates to catalyst systems comprising a catalyst compound having a bridged group 4 metal metallocene (where the bridge preferably contains an (Me2Si)2 group, an activator, and a support material. In some embodiments, the present disclosure provides for polyolefins and a process for producing a polyolefin composition comprising contacting at least one olefin with a catalyst system.

公开(公告)号：US10889663B2

公开(公告)日：2021-01-12

申请号：US16192493

申请日：2018-11-15

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Jian Yang ,  John R. Hagadorn ,  Gregory J. Karahalis ,  Timothy M. Boller ,  Evan J. Morris ,  Yan Jiang ,  Patrick Brant

IPC: C07F17/00 ,  C08F4/6592 ,  C08F210/16 ,  C08F4/649 ,  C08F210/02 ,  C08F210/14 ,  C08F4/659 ,  C08J5/18 ,  C08F2/34

Abstract: The present disclosure relates to asymmetric ansa-metallocene catalyst compounds that include at least one indenyl ligand substituted at the 3-position with a C3-C40 α-branched alkyl, such as 1-methylethyl, 1-methylpropyl, 1-methylbutyl, 1-ethylbutyl, 1,3-dimethylbutyl, 1-methyl-1-ethylbutyl, 1,1-diethylbutyl, 1-propylpentyl, and the like. Catalyst systems prepared with the catalyst compounds, polymerization methods using such catalyst systems, and polyolefins made using the polymerization methods are also described.

公开(公告)号：US20190389988A1

公开(公告)日：2019-12-26

申请号：US16449257

申请日：2019-06-21

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Xuan Ye ,  Jonathan J. Schaefer ,  Timothy M. Boller ,  Christopher S. Breiner ,  Chi-I Kuo ,  Kevin A. Stevens ,  Logan E. Shephard ,  Eyerusalem H. Mamo ,  Evan J. Morris ,  Shamah Lloyd

IPC: C08F210/16 ,  C08L23/06 ,  C08F4/6192 ,  C08F4/622 ,  C08F2/34 ,  C08K3/36

Abstract: Methods to produce heterogeneous polyethylene granules, the method including: contacting first olefin monomers and second olefin monomers with a catalyst system in a single reaction zone to produce heterogeneous polyethylene granules and recovering the heterogeneous polyethylene granules; wherein the catalyst system includes a product of a combination including: one or more catalysts having a Group 3 through Group 12 metal atom or lanthanide metal atom; at least one activator; and optionally, one or more support material compositions; and wherein the heterogeneous polyethylene granules include a product of a combination of: a first portion comprising a first polyethylene including the first olefin monomers and the second olefin monomers; a second portion including a second polyethylene including the first monomers and the second monomers; and wherein the first polyethylene has a higher second monomer weight percent than the second polyethylene, are provided.

公开(公告)号：US20220298087A1

公开(公告)日：2022-09-22

申请号：US17633913

申请日：2020-06-03

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Monica D. Lotz ,  Frank N. Raushel ,  Timothy M. Boller ,  Mark H. Li ,  Kyle G. Lewis ,  Jennifer L. Rapp

IPC: C07C5/25 ,  C07C2/34 ,  C10M177/00

Abstract: The present disclosure provides processes and apparatus for producing poly alpha olefins. In at least one embodiment, a process to produce a poly alpha olefin includes introducing a first olefin monomer to a first catalyst and an activator in a first reactor to form a first reactor effluent comprising an olefin dimer and an olefin trimer. The process includes introducing the first reactor effluent to a filtration unit to form a filtration effluent, and introducing the filtration effluent to a first distillation unit to form a first distillation effluent. The process includes introducing the first distillation effluent (or a second distillation effluent) to a second catalyst in a second reactor to form a second reactor effluent comprising the olefin trimer. The process includes removing a sample at any stage of the process and introducing the sample to a gas chromatograph.

公开(公告)号：US20190161561A1

公开(公告)日：2019-05-30

申请号：US16192654

申请日：2018-11-15

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Jian Yang ,  Gregory J. Karahalis ,  John R. Hagadorn ,  Timothy M. Boller ,  Evan J. Morris ,  Patrick Brant

IPC: C08F4/6592 ,  C08F4/659 ,  C08F10/02 ,  C08J5/18

Abstract: The present disclosure relates to ansa-metallocene catalyst compounds that include (1) a first indenyl ligand substituted at the 3-position with a substituted or unsubstituted C4-C40 hydrocarbyl group, wherein the hydrocarbyl group is branched at the β-position, and (2) a second indenyl ligand substituted at its 3-position with a substituted or unsubstituted alkyl group or a β-branched alkyl group. Catalyst systems prepared with the catalyst compounds, polymerization methods using such catalyst systems, and polyolefins made using the polymerization methods are also described.

公开(公告)号：US20190144578A1

公开(公告)日：2019-05-16

申请号：US16191334

申请日：2018-11-14

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Donna J. Crowther ,  Timothy M. Boller ,  Richard B. Pannell ,  Jeanette M. Diop ,  Wen Li

IPC: C08F210/16

Abstract: Polymerization processes to produce polyolefin polymers, for example, polyethylene polymers, from catalyst systems comprising one or more olefin polymerization catalysts and at least one activator are provided. The polyolefin polymers may have a Broad Orthogonal Composition Distribution (BOCD).

公开(公告)号：US11738334B2

公开(公告)日：2023-08-29

申请号：US17165618

申请日：2021-02-02

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Matthew W. Holtcamp ,  Dongming Li ,  Kevin A. Stevens ,  Jo Ann M. Canich ,  John R. Hagadorn ,  Ramyaa Mathialagan ,  Timothy M. Boller

IPC: C08F4/646 ,  C08F4/80 ,  B01J31/22 ,  B01J31/16 ,  B01J21/08 ,  C08F4/64 ,  C08F4/659

CPC classification number: B01J31/2243 ,  B01J21/08 ,  B01J31/1616 ,  C08F4/646 ,  C08F4/64124 ,  C08F4/64151 ,  C08F4/65908 ,  C08F4/65916 ,  C08F4/80 ,  B01J2531/0238 ,  B01J2531/48 ,  B01J2531/49 ,  B01J2531/842

Abstract: This invention relates to a supported catalyst system comprising: (i) at least one first catalyst component comprising a group 4 bis(phenolate) complex; (ii) at least one second catalyst component comprising a 2,6-bis(imino)pyridyl iron complex; (iii) activator; and (iv) support. The catalyst system may be used for preparing polyolefins, such a bimodal polyethylene, typically in a gas phase polymerization.