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公开(公告)号：US10934376B2
公开(公告)日：2021-03-02
申请号：US16160492
申请日：2018-10-15
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Dongming Li , Matthew W. Holtcamp , Ching-Tai Lue , Adriana S. Silva , David F. Sanders , Subramaniam Kuppuswamy , Matthew S. Bedoya
IPC: C08F210/16 , C08J5/18 , C09K3/10 , C08F4/659 , C08F4/6592
Abstract: Provided herein are polyethylene compositions with broad orthogonal composition distribution. The polyethylene compositions may comprise at least 65 wt % ethylene-derived units and from 0 to 35 wt % of C3 to C12 olefin comonomer-derived units, and furthermore may exhibit a reversed comonomer index (RCI,m) of 100 kg/mol or greater, a Tw1-Tw2 value of from −16 to −38° C., and an Mw1/Mw2 value of at least 0.9, such as 0.9 to 4. Also provided are processes for making the polyethylene compositions, as well as films made from the polyethylene compositions. Such films may feature superior film stiffness for a given polyethylene composition density, and accordingly such films in some embodiments have average MD/TD modulus and density satisfying the following equation: Avg. Modulus≥1.2*(C1*Density−C2), where C1 and C2 are constants, such as C1=2,065,292 and C2=1,872,345.
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公开(公告)号：US20190144575A1
公开(公告)日：2019-05-16
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
Abstract: Polyethylene compositions including at least 65 wt % ethylene derived units, based upon the total weight of the polyethylene composition, are provided.
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公开(公告)号：US20180155459A1
公开(公告)日：2018-06-07
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
CPC classification number: C08F4/14 , C08F4/65904 , C08F4/65908 , C08F4/65912 , C08F4/65916 , C08F4/6592 , C08F4/65925 , C08F210/16 , C08F2410/01 , C08F2420/02 , C08F210/14 , C08F2500/12 , C08F2500/26
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.
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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.
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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.
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Patent Agency Ranking
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.
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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.
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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
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.
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公开(公告)号：US10822434B2
公开(公告)日：2020-11-03
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 , C08F210/16 , C08F4/6592 , C08F2/34 , C08F2/44 , C08F210/02 , C08J5/18 , C08F4/659
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.
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公开(公告)号：US10808053B2
公开(公告)日：2020-10-20
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: C08F210/16 , C08F10/02 , C08F4/6592 , C08F2/34 , C08F2/44 , C08F210/02 , C08J5/18 , C08F4/659
Abstract: Polyethylene compositions including at least 65 wt % ethylene derived units, based upon the total weight of the polyethylene composition, are provided.
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