公开(公告)号：US20220289883A1

公开(公告)日：2022-09-15

申请号：US17663991

申请日：2022-05-18

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Rohan A. HULE ,  Antonios K. DOUFAS ,  Derek W. THURMAN ,  Crisita Carmen H. ATIENZA ,  Matthew W. HOLTCAMP ,  David F. SANDERS ,  Matthew S. BEDOYA

IPC: C08F210/16

Abstract: This invention relates to a catalyst system including the reaction product of a support (such as a fluorided silica support that preferably has not been calcined at a temperature of 400° C. or more), an activator and at least two different transition metal catalyst compounds; methods of making such catalyst systems, polymerization processes using such catalyst systems and polymers made therefrom.

公开(公告)号：US20230322972A1

公开(公告)日：2023-10-12

申请号：US18043088

申请日：2021-09-29

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Matthew W. HOLTCAMP ,  Laughlin G. MCCULLOUGH ,  Kevin A. STEVENS ,  Dongming LI ,  Robert L. HALBACH ,  Ramyaa MATHIALAGAN ,  Charles J. HARLAN ,  Timothy M. BOLLER

IPC: C08F4/76 ,  C08F4/02 ,  C08F4/80 ,  C08F210/16 ,  C08F2/34

CPC classification number: C08F4/76 ,  C08F4/025 ,  C08F4/80 ,  C08F210/16 ,  C08F2/34 ,  C08F2410/06 ,  C08F2420/08

Abstract: This invention relates to a supported catalyst system comprising: (i) at least one first catalyst component comprising a group 4 metallocycle containing metallocene 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.

公开(公告)号：US20230024066A1

公开(公告)日：2023-01-26

申请号：US17756932

申请日：2020-12-09

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Nino RUOCCO ,  Patrick BRANT ,  Matthew W. HOLTCAMP ,  Xiao Mei SHI ,  Tamara L. BLANTON

IPC: C08F210/16 ,  C08J5/18

Abstract: A biaxially-oriented film comprising a polyethylene having (A) a melt flow index of 1.0 g/10 min or more, (B) a density of 0.90 g/cm3 to less than 0.940 g/cm3, (C) a g′LCB of greater than 0.8, (D) ratio of comonomer content at Mz to comonomer content at Mw is greater than 1.0, (E) ratio of comonomer content at Mn to comonomer content at Mw is greater than 1.0, and (F) a ratio of the g′LCB to the g′zave is greater than 1.0, and where the film has a 1% secant in the transverse direction of 70,000 psi or more and Dart Drop of 350 g/mil or more.

公开(公告)号：US20230022149A1

公开(公告)日：2023-01-26

申请号：US17757000

申请日：2020-11-18

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Matthew W. HOLTCAMP ,  Dongming LI ,  Kevin A. STEVENS ,  Laughlin G. MCCULLOUGH

IPC: C08F210/16 ,  C08J5/18

Abstract: A polyethylene suitable for use in blown film can comprise ethylene derived units and C3 to C12 α-olefin derived units at 0.5 wt % to 10 wt % of the polyethylene and have a reversed-co-monomer index (RCI,m) of 35 to 100, a comonomer distribution ratio (CDR-2,m) of 1.20 to 1.80, and a weight average molecular weight (Mw) to number average molecular weight (Mn) of 5 to 7.

公开(公告)号：US20220025135A1

公开(公告)日：2022-01-27

申请号：US17309172

申请日：2019-11-13

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Ching-Tai LUE ,  Dongming LI ,  Matthew F. YOTT ,  Arturo LEYVA ,  Adriana S. SILVA ,  Matthew W. HOLTCAMP ,  Ryan W. IMPELMAN ,  Richard E. PEQUENO ,  Laughlin G. MCCULLOUGH ,  Hasnain RANGWALLA ,  James M. FARLEY

IPC: C08J5/18 ,  C08L23/08

Abstract: Films produced with polyethylene blends having improved stiffness and heat sealing are provided herein. The films may have an average MD/TD 1% secant modulus greater than or equal to about 3300 psi. The films may also have a heat seal initiation temperature at 5 N of less than or equal to about 95° C. or a hot tack seal initiation temperature at 1 N of less than or equal to about 95° C.

公开(公告)号：US20180134828A1

公开(公告)日：2018-05-17

申请号：US15564387

申请日：2016-04-19

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Antonios K. DOUFAS ,  David F. SANDERS ,  Matthew W. HOLTCAMP ,  Xuan YE ,  Alexander I. NORMAN ,  Rohan A. HULE ,  Hasnain RANGWALLA

IPC: C08F210/16 ,  C08F4/6592 ,  B01J31/22

CPC classification number: C08F210/16 ,  B01J31/2295 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/6592 ,  C08F4/65927 ,  C08F110/02 ,  C08F2420/02 ,  C08F2500/04 ,  C08F2800/10 ,  C08F4/65904 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/18 ,  C08F2500/13 ,  C08F2500/11 ,  C08F2500/17

Abstract: This invention relates to ethylene polymers obtained using a catalyst system comprising fluorided silica, alkylalumoxane activator and at least two metallocene catalyst compounds (a bridged monocyclopentadienyl group 4 transition metal compound and a biscyclopentadientyl 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 mixing method, such as an aqueous method. The ethylene polymers have: 1) at least 50 mol % ethylene; 2) a reversed comonomer index, mol %, (RCI,m) of 85 or more; 3) a Comonomer Distribution Ratio-2 (CDR-2,m) of the percent comonomer at the z average molecular weight divided by the percent comonomer at the weight average molecular weight plus the number average molecular weight divided by 2 ([% comonomer at Mz]/[% comonomer at ((Mw+Mn)/2)] as determined by GPC of 2.3 or more; and 4) a density of 0.91 g/cc or more.

公开(公告)号：US20180118860A1

公开(公告)日：2018-05-03

申请号：US15565603

申请日：2016-03-10

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Xuan YE ,  John R. HAGADORN ,  Matthew W. HOLTCAMP ,  Gregory S. DAY ,  David F. SANDERS ,  Carlos R. LOPEZ-BARRON

IPC: C08F210/16

CPC classification number: C08F210/16 ,  C08F4/659 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/65925 ,  C08F2500/04 ,  C08F2500/05 ,  C08F2500/12 ,  C08F4/64148 ,  C08F4/60148 ,  C08F4/65904 ,  C08F210/14 ,  C08F2500/01 ,  C08F2500/03 ,  C08F2500/18 ,  C08F2500/11 ,  C08F2500/13 ,  C08F4/025

Abstract: This invention relates to a supported catalyst system and process for use thereof. In particular, the catalyst system includes a pyridyldiamido transition metal complex, a metallocene compound, a support material and, optionally, an activator. The catalyst system may be used for preparing multi-modal polyolefins.

公开(公告)号：US20130023633A1

公开(公告)日：2013-01-24

申请号：US13628296

申请日：2012-09-27

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Matthew W. HOLTCAMP ,  Charles J. Ruff, JR. ,  Donna J. Crowther ,  John R. Hagadorn ,  Patrick Brant

IPC: C08F210/16 ,  C08F210/14 ,  C08F4/76

CPC classification number: C08F10/14 ,  C08F4/65908 ,  C08F4/65925 ,  C08F110/14 ,  C08F4/65927 ,  C08F210/14

Abstract: This invention relates to higher olefin vinyl terminated polymers having an Mn of at least 200 g/mol (measured by 1H NMR) including of one or more C4 to C40 higher olefin derived units, where the higher olefin vinyl terminated polymer comprises substantially no propylene derived units; and wherein the higher olefin polymer has at least 5% allyl chain ends and processes for the production thereof. These vinyl terminated higher olefin polymers may optionally include ethylene derived units.

Abstract translation: 本发明涉及具有至少200g / mol（通过1 H NMR测量）的Mn的高级烯烃乙烯基封端聚合物，其包含一个或多个C 4至C 40高级烯烃衍生单元，其中高级烯烃乙烯基封端聚合物基本上不含丙烯 单位; 并且其中所述较高级烯烃聚合物具有至少5％的烯丙基链末端及其生产方法。 这些乙烯基封端的较高级烯烃聚合物可以任选地包括乙烯衍生的单元。

公开(公告)号：US20230026039A1

公开(公告)日：2023-01-26

申请号：US17756930

申请日：2020-12-09

Applicant: ExxonMobil Chemical Patents, Inc.

Inventor： Nino RUOCCO ,  Patrick BRANT ,  Matthew W. HOLTCAMP ,  Xiao Mei SHI ,  Tamara L. BLANTON

IPC: C08L23/08 ,  C08K5/526 ,  C08K5/138 ,  B29C48/00 ,  B29C48/08 ,  B29C55/00 ,  B29C55/06

Abstract: This invention relates to an oriented polyethylene film comprising polyethylene having: (A) a melt flow index of 1.0 g/10 min or more, (B) a density of 0.90 g/cm3 to less than 0.940 g/cm3, (C) a g′LCB of greater than 0.8, (D) ratio of comonomer content at Mz to comonomer content at Mw is greater than 1.0, (E) ratio of comonomer content at Mn to comonomer content at Mw is greater than 1.0, and (F) a ratio of the g′LCB to the g′Zave is greater than 1.0, where the film has a 1% secant in the transverse direction of 70,000 psi or more and Dart Drop of 350 g/mil or more.

公开(公告)号：US20230021760A1

公开(公告)日：2023-01-26

申请号：US17756934

申请日：2020-12-09

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Nino RUOCCO ,  Matthew W. HOLTCAMP ,  Kevin A. STEVENS ,  Tamara BLANTON ,  Summer J. BERNHARDT

IPC: C08F210/16 ,  C08J5/18

Abstract: This invention relates to a biaxially-oriented polyethylene film comprising polyethylene having: (A) a melt index, I2, of 1.0 g/10 min or greater; (B) a density of 0.925 g/cm3 to 0.945 g/cm3; (C) a g′vis of less than 0.8; (D) an Mz of 1,000,000 g/mol or more; (E) an Mw/Mn of 5 or more; (F) an Mw of 100,000 g/mol or more; (G) a ratio of the g′LCB to the g′Zave is greater than 1.0; and (H) a Strain Hardening Ratio of 4 or more, where the film has a 1% secant in the transverse direction of 60,000 psi or more, a Dart Drop of 250 g/mil or more, and a ratio of 1% secant MD/1% secant TD is 0.65 or more.