公开(公告)号：US11492428B2

公开(公告)日：2022-11-08

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 ,  C08F4/659 ,  C08L23/06 ,  C08F2/34 ,  C08F4/6192 ,  C08F4/622 ,  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：US11111325B2

公开(公告)日：2021-09-07

申请号：US16191385

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: C08F4/64 ,  C08F4/76 ,  C08F210/16 ,  C08F4/659 ,  C08F4/6592

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：US11015002B2

公开(公告)日：2021-05-25

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: C08F4/64 ,  C08F4/76 ,  C08F210/16 ,  C08F4/659 ,  C08F4/6592

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：US20190161560A1

公开(公告)日：2019-05-30

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: C08F4/6592 ,  C08F4/659 ,  C08F4/649 ,  C08F210/02 ,  C08F210/14 ,  C08J5/18

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：US20190144580A1

公开(公告)日：2019-05-16

申请号：US16191385

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：US20190144579A1

公开(公告)日：2019-05-16

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: 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).