Patents by Inventor Jo Ann M. Canich

Jo Ann M. Canich has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230159670
    Abstract: An improved catalyst for cyclic olefin polymerization. The catalyst includes a transition metal carbene having the following structure: Mv(OR’)c*mX(v-c*m-2)=C(R*)2 wherein Mv is a Group 5 transition metal having a valence (v) of 5 or a Group 6 transition metal having a valence (v) of 5 or 6; each R? is independently a monovalent organic moiety comprising from 8 to 40 atoms selected from Groups 14-17; c is an integer from 1 to 3; m is ?, ½, 1, 3/2, 2, 3, or 4 and c*m ? v-2; X is a halogen; and each R* is independently H or a C1 to C7 alkyl. The catalyst is particularly useful for ring-opening metathesis polymerization (ROMP).
    Type: Application
    Filed: March 10, 2021
    Publication date: May 25, 2023
    Inventors: Alexander V. Zabula, Lubin Luo, Robert L. Halbach, Jo Ann M. Canich, Carlos R. Lopez-Barron, Alan A. Galuska
  • Publication number: 20230141606
    Abstract: The alkylation of transition metal coordination catalyst complexes (such as metallocenes and/or post-metallocenes) in non-polar solvents with high conversion to the dialkylated transition metal coordination catalyst complex may be accomplished by reacting (a) a transition metal coordination catalyst complex comprising a transition metal linked to at least one an anionic donor ligand and at least one leaving group having a non-carbon atom directly linked to the transition metal, (b) an aluminum alkyl, and (c) a fluoride salt at 0° C. to 85° C. in a non-polar solvent to yield an alkylated transition metal coordination catalyst complex.
    Type: Application
    Filed: March 18, 2021
    Publication date: May 11, 2023
    Inventors: Lubin Luo, Nikola S. Lambic, Jo Ann M. Canich
  • Publication number: 20230148328
    Abstract: Provided is syndiotactic polypropylene-based ethylene-propylene copolymers comprising a) 5 to 15% by weight of ethylene and 85 to 95% by weight of propylene; b) 60 to 90% rr triads; c) Mw (LS) of 10 to 250 kg/mol; and d) no substantial melting peak, wherein the heat of fusion of the peak is 5 J/g or less as determined by differential scanning calorimetry at a scan rate of 10° C./min (ASTM D3418-03).
    Type: Application
    Filed: November 4, 2022
    Publication date: May 11, 2023
    Inventors: Jingwen ZHANG, Jo Ann M. CANICH, Peijun JIANG, John R. HAGADORN, Chase A. ECKERT, Sarah J. MATTLER, Shuhui KANG
  • Patent number: 11613593
    Abstract: Metallocene complexes represented by the structure below are useful for alpha olefin oligomerization in the presence of an activator to generate polyalphaolefins having a high percentage of vinylidene termination and relatively low Mn values. M is a group 4 transition metal. A is a bridging group having one bridging atom extending between a first indenyl ring and a second indenyl ring. Each X is independently an anionic ligand, or two Xs are joined and bound to M to form a metallocycle ring, or two Xs are joined to form a chelating ligand, a diene ligand, or an alkylidene ligand. R1, R1?, R3, R3?, R4, R4?, R7 and R7? are hydrogen. R5, R5?, R6, and R6? are independently a C1-C10, optionally substituted, hydrocarbyl group, or R5 and R6 and/or R5? and R6? are bonded together to form an optionally substituted hydrocarbyl ring structure.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: March 28, 2023
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jo Ann M. Canich, Jian Yang, Alexander Z. Voskoboynikov, Andrey F. Asachenko, Oleg V. Samsonov, Georgy P. Goryunov
  • Patent number: 11597782
    Abstract: The present disclosure provides methods for producing an olefin polymer by contacting a C3-C40 olefin, ethylene and a diene with a catalyst system including an activator and a metallocene catalyst compound comprising a substituted or unsubstituted indacenyl group and obtaining a C3-C40 olefin-ethylene-diene terpolymer typically comprising from 1 to 35 mol % of ethylene, from 98.9 to 65 mol % C3-C40 olefin, and, optionally, from 0.1 to 10 mol % diene. Preferably, a propylene-ethylene-ethylidene norbornene is obtained.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: March 7, 2023
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jo Ann M. Canich, John R. Hagadorn, Rhutesh Shah, Florin Barsan, Sarah J. Mattler
  • Patent number: 11578155
    Abstract: In some embodiments, ethylene-propylene random copolymers as viscosity modifiers were synthesized with pyridyldiamido catalyst systems and a chain transfer agent. In some embodiments, the present disclosure provides for ethylene-propylene random copolymers having an ethylene content between about 45 wt % and about 55 wt %. In some embodiments, the ethylene-propylene random copolymer is used as a viscosity modifier in a lubricating composition and a fuel composition.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: February 14, 2023
    Assignee: EXXONMOBIL CHEMICAL PATENTS INC.
    Inventors: Jingwen Zhang, John R. Hagadorn, Rainer Kolb, Jo Ann M. Canich, Maksim Shivokhin, Peijun Jiang, Britni J. Brobey
  • Publication number: 20230044510
    Abstract: A composition, including: a copolymer including units derived from ethylene, one or more ?-olefins, one or more substituted styrene compounds, and a pendant alkoxy silane group. A method was disclosed to incorporate pendant alkoxy silyl groups onto the benzylic positions. The silane-functionalized polymers show ability to cure with water. Additionally, blends of silane-functionalized polymers exhibit improved filler acceptance.
    Type: Application
    Filed: July 8, 2022
    Publication date: February 9, 2023
    Inventors: Tzu-Pin Lin, Gang Huang, Jo Ann M. Canich, Irene C. Cai, Brian J. Rohde
  • Patent number: 11479625
    Abstract: In some embodiments, ethylene-propylene branched copolymers are synthesized with pyridyldiamido catalysts and a chain transfer agent, and their performance as viscosity modifiers in oil are detailed. In some embodiments, the present disclosure provides for ethylene-propylene branched copolymers having a shear thinning onset of less than about 0.01 rad/s and an HTHS value of less than about 3.3. In some embodiments, the ethylene-propylene branched copolymer is used as a viscosity modifier in a lubricating composition and a fuel composition.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: October 25, 2022
    Assignee: EXXONMOBIL CHEMICAL PATENTS INC.
    Inventors: Jingwen Zhang, John R. Hagadorn, Jo Ann M. Canich, Peijun Jiang, Britni J. Brobey, Maksim Shivokhin
  • Patent number: 11466102
    Abstract: The present disclosure provides methods for producing an olefin polymer by contacting a C3-C40 olefin, ethylene and a diene with a catalyst system including an activator and a metallocene catalyst compound comprising a substituted or unsubstituted indacenyl group and obtaining a C3-C40 olefin-ethylene-diene terpolymer typically comprising from 30 to 55 mol % ethylene, from 69.09 to 45 mol % C3 to C40 comonomer, and from 0.01 to 7 mol % diene wherein the Tg of the terpolymer is ?28° C. or less. Preferably, a propylene-ethylene-ethylidene norbornene is obtained.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: October 11, 2022
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jo Ann M. Canich, John R. Hagadorn, Rhutesh K. Shah, Florin Barsan, Sarah J. Mattler, Chase A. Eckert, Zhifeng Bai
  • Publication number: 20220298273
    Abstract: A process for making a poly alpha-olefin (PAO) having high vinylidene content (or combined vinylidene and tri-substituted vinylene content) and low vinyl and/or di-substituted vinylene content, as well as a relatively low molecular weight comprising contacting a feed containing a C6-C32 alpha-olefin with a catalyst system comprising non-aromatic-hydrocarbon soluble activator and a metallocene compound, typically a cyclopentadienyl-tetrahydro-s-indacenyl group 4 transition metal compound.
    Type: Application
    Filed: July 28, 2020
    Publication date: September 22, 2022
    Inventors: Jo Ann M. Canich, Jian Yang, Jennifer L. Rapp, Catherine A. Faler, Margaret T. Whalley
  • Patent number: 11421050
    Abstract: The present disclosure provides the use of quinolinyldiamido transition metal complexes, an activator and a metal hydrocarbenyl chain transfer agent, such as an aluminum vinyl-transfer agent, to produce long chain branched propylene polymers.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: August 23, 2022
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: John R. Hagadorn, Jo Ann M. Canich, Peijun Jiang, Maksim E. Shivokhin
  • Publication number: 20220251361
    Abstract: The present disclosure provides methods for producing an olefin polymer by contacting a C3-C40 olefin and ethylene with a catalyst system including an activator and a metallocene catalyst compound comprising a substituted or unsubstituted tetrahydro-s-indacenyl group and obtaining a C3-C40 olefin-ethylene copolymer typically comprising from 0.5 to 43 wt % ethylene, and from 99.5 to 57 wt % C3 to C40 comonomer wherein the Tg of the terpolymer is from 0 to ?60° C.
    Type: Application
    Filed: July 17, 2020
    Publication date: August 11, 2022
    Inventors: Zhifeng Bai, Jo Ann M. Canich, Jingwen Zhang, Peijun Jiang, Adrian Garcia Barry, Chase A. Eckert, Sarah J. Mattler
  • Patent number: 11390704
    Abstract: Compositions are provided which include blends of (A) branched and/or bimodal ethylene copolymers and (B) linear ethylene copolymers. The branched and/or bimodal ethylene copolymers may be produced using a dual metallocene catalyst system comprising two different metallocene catalysts: one capable of producing high Mooney-viscosity polymers and one suitable for producing polymers having at least a portion of vinyl terminations. The linear ethylene copolymers may be produced using a metallocene catalyst capable of producing high Mooney-viscosity polymers, which may be the same as such catalyst of the dual metallocene catalyst system. Processes for making such blends, including parallel and/or series polymerization processes, are also provided. The blends may have excellent cure properties suitable in curable rubber compound applications.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: July 19, 2022
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Narayanaswami Dharmarajan, Francis C. Rix, Jo Ann M. Canich, Danica L. Nguyen, Peijun Jiang, Rhutesh K. Shah
  • Patent number: 11352451
    Abstract: Processes are provided which include copolymerization using two different metallocene catalysts, one capable of producing high Mooney-viscosity polymers and one suitable for producing lower Mooney-viscosity polymers having at least a portion of vinyl terminations. The two catalysts may be used together in polymerization to produce copolymer compositions of particularly well-tuned properties. For instance, polymerizations are contemplated to produce high-Mooney metallocene polymers that exhibit excellent processability and elasticity, notwithstanding their high Mooney viscosity. Other polymerizations are also contemplated in which lower-Mooney metallocene polymers are produced, which also exhibit excellent processability and elasticity, while furthermore having excellent cure properties suitable in curable elastomer compound applications.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: June 7, 2022
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Francis C. Rix, Rhutesh K. Shah, Rainer Kolb, Jo Ann M. Canich, Peijun Jiang, Periagaram S. Ravishankar, Syamal Tallury
  • Patent number: 11345766
    Abstract: This invention relates to a compound represented by the formula: TyLAMXn-2 wherein: A is a substituted or unsubstituted tetrahydro-as-indacenyl group bonded to M; L is substituted or unsubstituted monocyclic or polycyclic arenyl ligand or monocyclic or polycyclic heteroarenyl ligand bonded to M; M is a group 3, 4, 5, or 6 transition metal (preferably group 4); T is a bridging group bonded to L and A; y is 0 or 1, indicating the absence or presence of T; X is a leaving group, typically a univalent anionic ligand, or two Xs are joined and bound to the metal atom to form a metallocycle ring, or two Xs are joined to form a chelating ligand, a diene ligand, or an alkylidene; n is the oxidation state of M and is 3, 4, 5, or 6.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: May 31, 2022
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jo Ann M. Canich, Vyatcheslav V. Izmer, Dmitry S. Kononovich, Alexander Z. Voskoboynikov
  • Patent number: 11299567
    Abstract: This application relates to copolymer compositions and copolymerization processes, as well as to lubricating oil compositions comprising such copolymer compositions as viscosity index improvers, and base oil. The copolymer compositions may be made using two different metallocene catalysts: one capable of producing high molecular weight copolymers; and one suitable for producing lower molecular weight copolymers having at least a portion of vinyl terminations, and the copolymer compositions produced thereby. Copolymer compositions may comprise (1) a first ethylene copolymer fraction having high molecular weight, exhibiting branching topology, and having relatively lower ethylene content (based on the weight of the first ethylene copolymer fraction); and (2) a second ethylene copolymer fraction having low molecular weight, exhibiting linear rheology, and having relatively higher ethylene content (based on the weight of the second ethylene copolymer fraction).
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: April 12, 2022
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jingwen Zhang, Rainer Kolb, Andy H. Tsou, Periagaram S. Ravishankar, Jo Ann M. Canich, Francis C. Rix
  • Publication number: 20220106422
    Abstract: A process for making a poly alpha-olefin (PAO) having a relatively high vinylidene content (or combined vinylidene and tri-substituted vinylene content) and a relatively low vinyl and/or di-substituted vinylene content, as well as a relatively low molecular weight. The process includes: contacting a feed containing a C2-C32 alpha-olefin with a catalyst system comprising activator and a bis-cyclopentadienyl metallocene compound, typically a cyclopentadienyl-benzindenyl group 4 transition metal compound.
    Type: Application
    Filed: June 15, 2021
    Publication date: April 7, 2022
    Inventors: Jian Yang, Jo Ann M. Canich, Hua Zhou, Jennifer L. Rapp
  • Patent number: 11254763
    Abstract: This invention relates to transition metal complexes of a dianionic, tridentate ligand that features a central neutral heterocyclic Lewis base and two phenolate donors, where the tridentate ligand coordinates to the metal center to form two eight-membered rings. Preferably the bis(phenolate) complexes are represented by Formula (I): where M, L, X, m, n, E, E?, Q, R1, R2, R3, R4, R1?, R2?, R3?, R4?, A1, A1?, are as defined herein, where A1QA1? are part of a heterocyclic Lewis base containing 4 to 40 non-hydrogen atoms that links A2 to A2? via a 3-atom bridge with Q being the central atom of the 3-atom bridge.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: February 22, 2022
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Georgy P. Goryunov, Mikhail I. Sharikov, Vladislav A. Popov, Dmitry V. Uborsky, Alexander Z. Voskoboynikov, John R. Hagadorn, Michelle E. Titone, Alex E. Carpenter, Catherine A. Faler, Jo Ann M. Canich
  • Publication number: 20220048016
    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.
    Type: Application
    Filed: February 2, 2021
    Publication date: February 17, 2022
    Inventors: Matthew W. Holtcamp, Dongming Li, Kevin A. Stevens, Jo Ann M. Canich, John R. Hagadorn, Ramyaa Mathialagan, Timothy M. Boller
  • Patent number: 11248070
    Abstract: The present disclosure relates to Lewis base catalysts. Catalysts, catalyst systems, and processes of the present disclosure can provide high temperature ethylene polymerization, propylene polymerization, or copolymerization as the Lewis base catalysts (e.g., bis(aryl phenolate) five-membered ring catalysts), can be stable at high polymerization temperatures and have good activity at the high polymerization temperatures. The stable catalysts with good activity can provide formation of polymers having high molecular weights or polymers having low to very molecular weights, and the ability to make an increased amount of polymer in a given reactor, as compared to conventional catalysts. Hence, the present disclosure demonstrates highly active catalysts capable of operating at high reactor temperatures while producing polymers with controlled molecular weights and or robust isotacticity.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: February 15, 2022
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Georgy P. Goryunov, Vladislav A. Popov, Dmitry V. Uborsky, Alexander Z. Voskoboynikov, John R. Hagadorn, Irene C. Cai, Jo Ann M. Canich