公开(公告)号：US10968290B2

公开(公告)日：2021-04-06

申请号：US15921757

申请日：2018-03-15

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Donna J. Crowther ,  Patrick C. Chen ,  Jacqueline A. Lovell ,  Md Safatul Islam

IPC: C10M107/02 ,  C07C2/22 ,  C08F4/6592 ,  C08F210/16 ,  C08F10/14 ,  B01J31/38 ,  C08F10/08 ,  C08F110/14 ,  B01J31/22 ,  C08F4/659

Abstract: Unsaturated and hydrogenated polyalpha-olefin products can be made with a high selectivity toward vinylidenes and tri-substituted vinylenes combined, a high selectivity toward vinylidenes, and a low selectivity toward 1,2-di-substituted vinylenes by using a catalyst system comprising a metallocene compound having the following structure in the polymerization reaction:

公开(公告)号：US10723819B2

公开(公告)日：2020-07-28

申请号：US15877094

申请日：2018-01-22

Applicant: ExxonMobil Chemical Patents Inc.

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

IPC: C08F4/653 ,  C08F4/6592 ,  C08F210/16 ,  C08L23/08 ,  C08F2/34 ,  C08F10/02 ,  C08F2/18 ,  C08F4/659

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.

公开(公告)号：US20200216582A1

公开(公告)日：2020-07-09

申请号：US16492736

申请日：2018-02-12

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Donna J. Crowther ,  Hua Zhou ,  Jacqueline A. Lovell

IPC: C08F4/6592 ,  C08F232/08 ,  C08F210/06 ,  C08F210/14 ,  C08F210/16

Abstract: This invention relates to a process to polymerize olefins comprising contacting, in solution phase at a temperature of 60° C. to 200° C., ethylene, and at least one olefin comonomer with a catalyst system comprising a non-coordinating anion activator and a metallocene catalyst compound, preferably represented by the formula: and 2) obtaining ethylene polymer having an Mw greater than 100,000 g/mol, preferably greater tha 400,000 g/mol.

公开(公告)号：US20190144578A1

公开(公告)日：2019-05-16

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: 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：US10246542B2

公开(公告)日：2019-04-02

申请号：US15214133

申请日：2016-07-19

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Andy H. Tsou ,  George Rodriguez ,  Carlos R. Lopez-Barron ,  Donna J. Crowther ,  Hillary L. Bradshaw ,  Antonios K. Doufas

IPC: C08L23/08 ,  C08L23/12 ,  C08F290/04 ,  C08F10/06 ,  C08F4/659

Abstract: An atactic polypropylene comb-block polyolefin comprising two blocks including a polyolefin backbone and atactic polypropylene combs pendant to the backbone having a weight average molecular weight of at least 8000 g/mole and a crystallinity of less than 20%, where the atactic polypropylene comb-block polyolefin has comb number of at least 2. The atactic polypropylene comb-block polyolefin is made by contacting at a temperature within a range from 20 to 70° C. propylene with a first metallocene precursor to form vinyl-terminated atactic polypropylene to form vinyl-terminated atactic polypropylene, then contacting at a temperature within a range from 40 to 150° C. the vinyl-terminated atactic polypropylene with ethylene, propylene, or both and a second metallocene precursor to form the backbone.

公开(公告)号：US20180094088A1

公开(公告)日：2018-04-05

申请号：US15706088

申请日：2017-09-15

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Donna J. Crowther ,  Laughlin G. McCullough ,  Jacqueline A. Lovell

IPC: C08F210/02 ,  C08F210/14

CPC classification number: C08F210/02 ,  C08F4/65912 ,  C08F4/65916 ,  C08F210/14 ,  C08F210/16 ,  C08F4/65925

Abstract: In at least one embodiment, a catalyst compound is represented by Formula (I): where M is a group 4 metal. Each of R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, and R14 is independently hydrogen, or a linear or branched C1-C50 substituted or unsubstituted hydrocarbyl, halocarbyl or silylcarbyl. At least one of R1 and R3 is not hydrogen. Each X is independently a halide or C1-C50 substituted or unsubstituted hydrocarbyl, hydride, amide, alkoxide, sulfide, phosphide, halide, diene, amine, phosphine, ether, or a combination thereof, or two Xs are joined together to form a metallocycle ring, or two Xs are joined to form a chelating ligand, a diene ligand, or an alkylidene.

公开(公告)号：US20160347893A1

公开(公告)日：2016-12-01

申请号：US15234734

申请日：2016-08-11

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Rainer Kolb ,  Donna J. Crowther ,  Peijun Jiang

IPC: C08F210/16

CPC classification number: C08F210/16 ,  C08F4/65908 ,  C08F4/65927 ,  C08F10/00 ,  C08F210/02 ,  C08F210/06 ,  C08L23/0807 ,  C10M143/04 ,  C10M143/06 ,  C10M143/08 ,  C10M171/02 ,  C10M171/04 ,  C10M2205/022 ,  C10N2230/02 ,  C10N2230/04 ,  C10N2230/45 ,  C10N2240/04 ,  C10N2240/042 ,  C10N2240/08 ,  C10N2240/102 ,  C10N2240/103 ,  C10N2240/104 ,  C08L2666/02 ,  C10M2205/026 ,  C10M2205/024 ,  C10M2205/028 ,  C08F210/14 ,  C08F2500/03 ,  C08F2500/12 ,  C08F210/00

Abstract: Provided is an ethylene copolymer having 40 wt. % to 70 wt. % of units derived from ethylene and at least 30 wt. % of units derived from at least one α-olefin having 3 to 20 carbon atoms and has the following properties: (a) a weight-average molecular weight (Mw), as measured by GPC, in the range of about 50,000 to about 200,000 g/mol; (b) a melting point (Tm) in ° C., as measured by DSC, that satisfies the relation: Tm>3.4×E−180 where E is the weight % of units derived from ethylene in the copolymer; (c) a ratio of Mw/Mn of about 1.8 to about 2.5; (d) a content of Group 4 metals of no more than 5 ppm; and (e) a ratio of wt ppm Group 4 metals/wt ppm Group 5 metals of at least 3. Also provided are methods for making an ethylene copolymer and compositions comprising an ethylene copolymer.

Abstract translation: 还提供了制备乙烯共聚物的方法和包含乙烯共聚物的组合物。

公开(公告)号：US09273163B2

公开(公告)日：2016-03-01

申请号：US14033184

申请日：2013-09-20

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Donna J. Crowther ,  Man Kit Ng ,  Charles J. Ruff ,  Patrick Brant ,  Jacqueline A. Lovell ,  Carlos R. Lopez-Barron

IPC: C08F10/06 ,  C08F8/42

CPC classification number: C08F10/06 ,  C08F8/42 ,  C08F10/00

Abstract: This invention relates to the reaction product(s) of a polyalkylhydrosiloxane and a vinyl terminated macromonomer (VTM).

Abstract translation: 本发明涉及聚烷基氢硅氧烷和乙烯基封端的大分子单体（VTM）的反应产物。

公开(公告)号：US09102844B2

公开(公告)日：2015-08-11

申请号：US14100303

申请日：2013-12-09

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Matthew W. Holtcamp ,  Patrick Brant ,  Donna J. Crowther ,  John R. Hagadorn ,  Gregory S. Day

IPC: C09D123/12 ,  C08F210/06 ,  C08F8/06 ,  C08F110/06 ,  C09D123/10 ,  C08F10/04 ,  C08F4/52

CPC classification number: C09D123/12 ,  C08F4/52 ,  C08F8/06 ,  C08F10/04 ,  C08F110/06 ,  C08F210/06 ,  C09D123/10 ,  C09D123/26

Abstract: Disclosed herein are certain propylene-based metal polymerals and their use in modifying surfaces, and, in general, metal polymerals used in modifying surfaces. In one aspect is a metal polymeryl comprising compounds having the general formula: MR3−nR′n; wherein each R group is a hydrogen or C1 to C10 or C20 alkyl, and each R′ group is selected from propylene-based polymers having an Mn of at least 300 g/mole; n is 1, 2, or 3; and M is a Group 12 or 13 metal, preferably aluminum or zinc; wherein the first portion of the R′ group bound to the metal M is a —CH2CH2— group, and the terminal portion of the R′ group is isobutyl. Surfaces that are modified or “solubilized” include particles of silica or alumina, glass, metal, clay and other hydroxyl-containing materials of all sizes.

Abstract translation: 本文公开了某些丙烯基金属聚合物及其在改性表面中的用途，以及通常用于改性表面的金属聚合物。 一方面是包含具有以下通式的化合物的金属聚合物：MR3-nR'n; 其中每个R基团是氢或C 1至C 10或C 20烷基，并且每个R'基团选自Mn至少为300g / mol的基于丙烯的聚合物; n为1,2或3; M为12或13族金属，优选为铝或锌; 其中与金属M键合的R'基团的第一部分是-CH 2 CH 2基团，R'基团的末端部分是异丁基。 被修饰或“溶解”的表面包括二氧化硅或氧化铝的颗粒，玻璃，金属，粘土和其它各种尺寸的含羟基材料。

公开(公告)号：US08816027B2

公开(公告)日：2014-08-26

申请号：US13875737

申请日：2013-05-02

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Donna J. Crowther ,  Patrick Brant ,  Carlos U. De Garcia ,  Jacqueline A. Lovell

IPC: C08F4/6592 ,  C08F4/642 ,  C08F4/643 ,  C08F110/06 ,  B01J31/14 ,  B01J31/12 ,  C08F4/76 ,  C08F4/16 ,  C08F210/06

CPC classification number: C08F4/65912 ,  B01J31/12 ,  B01J31/14 ,  B01J31/2295 ,  B01J2531/48 ,  B01J2531/49 ,  C08F4/16 ,  C08F4/65908 ,  C08F4/6592 ,  C08F4/76 ,  C08F110/06 ,  C08F210/06 ,  Y10S526/943 ,  C08F210/16 ,  C08F2500/03 ,  C08F10/06 ,  C08F4/65927

Abstract: This invention relates to a homogenous process for making a vinyl terminated propylene polymer, wherein the process comprises: contacting, propylene, under polymerization conditions, with a catalyst system comprising an activator and at least one metallocene compound, where the metallocene compound is represented by the formula: where: M is hafnium or zirconium; each X is a group bound to M as described herein; each R1 and R2 is, independently, a C1 to C10 alkyl group; each R3 is, independently, hydrogen; each R4, R5, and R6, is, independently, hydrogen or a substituted or unsubstituted hydrocarbyl group, a heteroatom or heteroatom containing group; T is a bridging group as described herein; and further provided that any of adjacent R4, R5, and R6 groups may form a fused ring or multicenter fused ring system where the rings may be aromatic, partially saturated or saturated, wherein the activator comprises a non-coordinating anion.

Abstract translation: 本发明涉及一种用于制备乙烯基封端的丙烯聚合物的均匀方法，其中该方法包括：在聚合条件下使丙烯与包含活化剂和至少一种金属茂化合物的催化剂体系接触，其中茂金属化合物由 式：其中：M是铪或锆; 每个X是如本文所述与M结合的基团; 每个R 1和R 2独立地为C 1至C 10烷基; 每个R 3独立地是氢; 每个R 4，R 5和R 6独立地是氢或取代或未取代的烃基，含杂原子或杂原子的基团; T是如本文所述的桥连基团; 并且进一步规定，任何相邻的R 4，R 5和R 6基团可以形成稠合环或多中心稠环体系，其中所述环可以是芳族的，部分饱和的或饱和的，其中所述活化剂包含非配位阴离子。