公开(公告)号：US10927202B2

公开(公告)日：2021-02-23

申请号：US16152458

申请日：2018-10-05

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Ching-Tai Lue ,  Adriana S. Silva ,  Matthew W. Holtcamp ,  David F. Sanders ,  Ryan W. Impelman ,  Richard E. Pequeno ,  Charles J. Harlan ,  Xuan Ye ,  Dongming Li ,  Matthew S. Bedoya

IPC: C08F210/16 ,  C08J5/18 ,  C08F4/659 ,  C08F4/6592

Abstract: Polyethylene compositions including at least 65 wt % ethylene derived units and from 0 to 35 wt % of C3-C12 olefin comonomer derived units, based upon the total weight of the polyethylene composition are provided. The polyethylene compositions have a) an RCI,m of 100 kg/mol or greater and one or both of: b) a Tw1-Tw2 value of from −16 to −38° C.; and c) an Mw1/Mw2 value of at least 0.9. The polyethylene compositions may be used to manufacture articles such as films.

公开(公告)号：US20200165366A1

公开(公告)日：2020-05-28

申请号：US16632240

申请日：2018-06-29

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Dongming Li ,  David M. Fiscus ,  Kevin A. Stevens ,  Ching-Tai Lue ,  Matthew W. Holtcamp

IPC: C08F210/16 ,  B29C48/00 ,  C08J5/18

Abstract: The present disclosure provides films made of polyethylene (PE) compositions. In at least one embodiment, a film includes a polyethylene composition, comprising: ethylene content and from 0 to 25 mol % of C3-C40 olefin comonomer content, based upon the total weight of the polyethylene composition, the polyethylene composition having a total internal plus terminal unsaturation greater than 0.7 unsaturations per 1000 carbon atoms, the film having: an Elmendorf Tear value in the machine direction of from 10 g/mil to 300 g/mil, and a Dart Drop Impact of from 100 g/mil to 800 g/mil. In at least one embodiment, the present disclosure provides for processes to make a film.

公开(公告)号：US20190144576A1

公开(公告)日：2019-05-16

申请号：US16152470

申请日：2018-10-05

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Ching-Tai Lue ,  Adriana S. Silva ,  Matthew W. Holtcamp ,  David F. Sanders ,  Ryan W. Impelman ,  Richard E. Pequeno ,  Charles J. Harlan ,  Xuan Ye ,  Dongming Li ,  Rohan A. Hule ,  Matthew S. Bedoya

IPC: C08F210/16 ,  C08J5/18

Abstract: Polyethylene compositions including at least 65 wt % ethylene derived units, based upon the total weight of the polyethylene composition, are provided.

公开(公告)号：US20190127502A1

公开(公告)日：2019-05-02

申请号：US16137059

申请日：2018-09-20

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Matthew W. Holtcamp ,  David F. Sanders ,  Matthew S. Bedoya ,  Ching-Tai Lue

IPC: C08F210/02 ,  C08J5/18

CPC classification number: C08F210/02 ,  C08F4/65912 ,  C08F4/65916 ,  C08F210/16 ,  C08J5/18 ,  C08J2323/08 ,  C08F2/34 ,  C08F4/65927 ,  C08F4/65925 ,  C08F4/65904 ,  C08F210/14 ,  C08F2500/04 ,  C08F2500/12 ,  C08F2500/18

Abstract: The present disclosure provides a supported catalyst system and process for use thereof. In particular, the catalyst system includes four different catalysts, a support material and an activator. The catalyst system may be used for preparing polyolefins, such as polyethylene.

公开(公告)号：US20190119413A1

公开(公告)日：2019-04-25

申请号：US16117008

申请日：2018-08-30

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Matthew W. Holtcamp ,  Dongming Li ,  Ching-Tai Lue ,  Adriana S. Silva ,  David F. Sanders ,  Laughlin G. McCullough ,  Matthew S. Bedoya ,  Subramaniam Kuppuswamy

IPC: C08F10/02

Abstract: Catalyst systems including more than one metallocene catalysts and processes for using the same are provided to produce polyolefin polymers such as polyethylene polymers.

公开(公告)号：US11649331B2

公开(公告)日：2023-05-16

申请号：US17309173

申请日：2019-11-13

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Ching-Tai Lue ,  Dongming Li ,  Hasnain Rangwalla ,  Matthew F. Yott

IPC: C08J5/18 ,  C08L23/08 ,  B29C48/00

CPC classification number: C08J5/18 ,  C08L23/0815 ,  B29C48/0018 ,  C08J2323/08 ,  C08L2203/162 ,  C08L2205/025 ,  C08L2205/035

Abstract: Provided herein are polyethylene films made of the polyethylene blends having improved properties, particularly in Elmendorf tear and puncture resistance. The polyethylene blends include two primary polyethylene blends.

公开(公告)号：US20200231790A1

公开(公告)日：2020-07-23

申请号：US16632177

申请日：2018-06-22

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Dongming Li ,  Ching-Tai Lue ,  Adriana S. Silva ,  Matthew W. Holtcamp ,  Laughlin G. McCullough ,  David F. Sanders ,  Matthew S. Bedoya

IPC: C08L23/08 ,  C08F210/02 ,  C08F210/04 ,  C08F210/14 ,  C08F4/659 ,  C08F4/6592 ,  C08J5/18

Abstract: A polyethylene composition comprising from about 0.5 to about 20 wt % of alpha-olefin derived units other than ethylene-derived units, with the balance including ethylene-derived units, total internal unsaturations (Vy1+Vy2+T1) of from about 0.10 to about 0.40 per 1000 carbon atoms, an MI of from about 0.1 to about 6 g/10 min, an HLMI of from about 5.0 to about 40 g/10 min, a density of from about 0.890 to about 0.940 g/ml, a Tw1-Tw2 value of from about −25 to about −20° C., an Mw1/Mw2 value of from about 1.2 to about 2.0, an Mw/Mn of from about 4.5 to about 12, an Mz/Mw of from about 2.0 to about 3.0, an Mz/Mn of from about 7.0 to about 20, and a g′(vis) greater than 0.90.

公开(公告)号：US10662262B2

公开(公告)日：2020-05-26

申请号：US15804554

申请日：2017-11-06

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Dongming Li ,  Ching-Tai Lue ,  Phillip T. Matsunaga ,  Mark B. Davis

IPC: C08F2/04 ,  C08F4/14 ,  C08F210/16 ,  C08F4/659 ,  C08F4/6592

Abstract: Borate activated catalyst systems and methods for making the same for gas phase or slurry phase olefin polymerization are provided. The catalyst system can include a first catalyst comprising a borate activated mono cyclopentadienyl metallocene compound and a second catalyst comprising a supported bis cyclopentadienyl metallocene complex. A supported bis cyclopentadienyl metallocene complex can be prepared to provide a preformed, supported catalyst, wherein the supported bis cyclopentadienyl metallocene complex comprises bis(1,3-methylbutyl cyclopentadienyl) zirconium dichloride. The preformed, supported catalyst can be mixed with mineral oil or hydrocarbon solvent to form a slurry. The slurry can be mixed with a borate activated mono cyclopentadienyl metallocene compound to form the borate activated catalyst system.

公开(公告)号：US20190161559A1

公开(公告)日：2019-05-30

申请号：US16160718

申请日：2018-10-15

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Matthew W. Holtcamp ,  Dongming Li ,  Ching-Tai Lue ,  Adriana S. Silva ,  David F. Sanders ,  Subramaniam Kuppuswamy ,  Matthew S. Bedoya

IPC: C08F4/6592 ,  C08F4/659 ,  C08F4/642 ,  C08F10/04 ,  C08F210/16 ,  B01J31/22

Abstract: Catalyst systems including more than one metallocene catalysts and processes for using the same are provided to produce polyolefin polymers such as polyethylene polymers.

公开(公告)号：US20190119417A1

公开(公告)日：2019-04-25

申请号：US16117023

申请日：2018-08-30

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Dongming Li ,  Ching-Tai Lue ,  Adriana S. Silva ,  Matthew W. Holtcamp ,  David F. Sanders ,  Laughlin G. McCullough ,  Matthew S. Bedoya ,  Subramaniam Kuppuswamy

IPC: C08F210/02 ,  C08J5/18 ,  C08F2/34 ,  C08F2/44

Abstract: Polyethylene compositions including at least 65 wt % ethylene derived units, based upon the total weight of the polyethylene composition, are provided.