公开(公告)号：US20200048382A1

公开(公告)日：2020-02-13

申请号：US16339935

申请日：2017-10-04

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Matthew W. Holtcamp ,  Crisita Carmen H. Atienza ,  Charles J. Harlan ,  Xuan Ye ,  Matthew S. Bedoya ,  David F. Sanders ,  David A. Cano ,  Subramaniam Kuppuswamy ,  Michelle E. Titone ,  Ching-Tai Lue ,  Laughlin G. McCullough ,  Rohan A. Hule

IPC: C08F210/16

Abstract: Disclosed herein is a catalyst system including a first catalyst compound represented by Formula (I): and a second catalyst compound that is a bridged or unbridged metallocene. M is a group 4 metal. X1 and X2 are independently a univalent C1-C20 hydrocarbyl, C1-C20 substituted hydrocarbyl, a heteroatom or a heteroatom-containing group, or X1 and X2 join together to form a C4-C62 cyclic or polycyclic ring structure. R1, R2, R3, R4, R5, R6, R7, R8, R9, and R10 is independently hydrogen, C1-C40 hydrocarbyl, C1-C40 substituted hydrocarbyl, a heteroatom or a heteroatom-containing group, or two or more of R1, R2, R3, R4, R5, R6, R7, R8, R9, or R10 are joined together to form a C4-C62 cyclic or polycyclic ring structure, or a combination thereof. Q is a neutral donor group. Methods of polymerizing with the catalyst system to produce polyolefin polymers are also disclosed.

公开(公告)号：US20190284312A1

公开(公告)日：2019-09-19

申请号：US16250624

申请日：2019-01-17

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Matthew W. Holtcamp ,  Subramaniam Kuppuswamy ,  Matthew S. Bedoya ,  Kevin A. Stevens ,  Ching-Tai Lue ,  Hasnain Rangwalla

IPC: C08F4/6592 ,  C08F210/16 ,  C08F4/659 ,  C08F4/646 ,  C08F4/642

Abstract: A mixed metallocene catalyst system can comprise at least one metallocene catalyst compound comprising a structure represented by formula (A) below and optionally at least one other metallocene catalyst compound having a structure represented by formula (B) below: A mixed metallocene catalyst system can additionally include a non-coordinating anion type activator comprising a supported alumoxane or aluminum alkyl, and optionally a scavenger. A process for making a polymeric product can comprise: contacting a C2-C22 alpha-olefin feed with the catalyst system to obtain a polymerization reaction mixture; and obtaining a polymer product from the polymerization reaction mixture. A polymer product can be made by the process.

公开(公告)号：US20190161567A1

公开(公告)日：2019-05-30

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

Abstract: Polyethylene compositions including at least 65 wt % ethylene derived units, based upon the total weight of the polyethylene composition, are provided. Films made from these polyethylene compositions are also provided as well as processes for making the same.

公开(公告)号：US20190040167A1

公开(公告)日：2019-02-07

申请号：US16016060

申请日：2018-06-22

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Matthew W. Holtcamp ,  Laughlin G. McCullough ,  Matthew S. Bedoya ,  David F. Sanders ,  Charles J. Harlan ,  Ching-Tai Lue ,  Subramaniam Kuppuswamy

IPC: C08F210/16

Abstract: The present disclosure provides a supported catalyst system and process for use thereof. In particular, the catalyst system includes an unbridged metallocene compound, an additional unbridged metallocene compound having a structure different than the first unbridged metallocene compound, a support material and an activator. The catalyst system may be used for preparing polyolefins.

公开(公告)号：US20180237554A1

公开(公告)日：2018-08-23

申请号：US15877094

申请日：2018-01-22

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Matthew W. Holtcamp ,  Donna J. Crowthe ,  Subramaniam Kuppuswamy ,  Matthew S. Bedoya ,  Laughlin G. McCullough ,  Ching-Tai Lue ,  David M. Fiscus

IPC: C08F4/6592 ,  C08F210/16 ,  C08F10/02 ,  C08F2/18 ,  C08F4/659 ,  C08F2/34

Abstract: This invention relates to a supported catalyst system and process for use thereof. In particular, the catalyst system includes bridged hafnium metallocene compound, an unbridged metallocene compound, a support material and an activator. The catalyst system may be used for preparing polyolefins.