Patents by Inventor Alexander Z. Voskoboynikov

Alexander Z. Voskoboynikov 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).

  • Patent number: 10815318
    Abstract: Quinolinyldiamido transition metal complexes are disclosed for use in alkene polymerization to produce multimodal polyolefins.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: October 27, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: John R. Hagadorn, Patrick J. Palafox, Peijun Jiang, Yaohua Gao, Xin Chen, Georgy P. Goryunov, Mikhail I. Sharikov, Dmitry V. Uborsky, Alexander Z. Voskoboynikov
  • Patent number: 10807997
    Abstract: The present disclosure provides methods for making quinolinyldiamine products from quinolinyl starting materials. In addition, the quinolinyldiamines can be used as ligands or ligand precursors for catalysts, e.g. for use in olefin polymerization.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: October 20, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Oleg V. Samsonov, Mikhail I. Sharikov, Georgy P. Goryunov, Dmitry V. Uborsky, Alexander Z. Voskoboynikov, Michelle E. Titone, John R. Hagadorn, Jo Ann M. Canich
  • Publication number: 20200308315
    Abstract: This invention relates to transition metal complexes represented by the formula: catalyst systems comprising the complexes, and polymerization methods for olefinic monomers using the catalyst systems. In said formula, M is a transition metal; E is NR2, CR3R4, O, S, or SiR5R6; Q is optional substitution; p is an integer ranging from 0 to 3; L is an optional neutral ligand; m is an integer ranging from 0 to 3; X is an anionic leaving group; n is 1 or 2, with m+n being 4 or less; J is a linker group contributing two or three atoms that are located within a first chelate ring; R1 and R1? are independently a hydrocarbyl group or a trihydrocarbylsilyl group; R2 is a hydrocarbyl group; R3 and R4 are independently H, a hydrocarbyl group, or a trihydrocarbylsilyl group; and R5 and R5 are independently a hydrocarbyl group.
    Type: Application
    Filed: March 25, 2020
    Publication date: October 1, 2020
    Inventors: John R. Hagadorn, Jo Ann M. Canich, Mikhail I. Sharikov, Georgy P. Goryunov, Pavel S. Kulyabin, Dmitry V. Uborsky, Alexander Z. Voskoboynikov
  • Publication number: 20200255555
    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 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 melting points, high isotacticity, and controllable 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: Application
    Filed: February 11, 2020
    Publication date: August 13, 2020
    Inventors: Georgy P. Goryunov, Oleg V. Samsonov, Dmitry V. Uborsky, Alexander Z. Voskoboynikov, Jo Ann M. Canich, John R. Hagadorn
  • Publication number: 20200255553
    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: Application
    Filed: February 11, 2020
    Publication date: August 13, 2020
    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: 20200255556
    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: Application
    Filed: February 11, 2020
    Publication date: August 13, 2020
    Inventors: Georgy P. Goryunov, Vladislav A. Popov, Dmitry V. Uborsky, Alexander Z. Voskoboynikov, John R. Hagadorn, Irene C. Cai, Jo Ann M. Canich
  • Publication number: 20200254431
    Abstract: The present disclosure relates to bis(aryl phenolate) Lewis base catalysts. Catalysts, catalyst systems, and processes of the present disclosure can provide high temperature ethylene polymerization, propylene polymerization, or copolymerization as the bis(aryl phenolate) Lewis base catalysts are 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 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: Application
    Filed: February 11, 2020
    Publication date: August 13, 2020
    Inventors: Georgy P. Goryunov, Vladislav A. Popov, Dmitry V. Uborsky, Alexander Z. Voskoboynikov, John R. Hagadorn, Irene C. Cai, Hua Zhou, Jo Ann M. Canich
  • Publication number: 20200079884
    Abstract: Catalyst system for producing ethylene copolymers in a high temperature solution process, the catalyst system comprising (i) a metallocene complex of formula (I), M is Hf or a mixture with Zr, provided that more than 50% by moles of the complex of Formula I has M=Hf, X is a sigma ligand, R are the same or different from each other and can be saturated linear or branched C1-C10 alkyl, C5-C10 aryl, C6-C20 alkylaryl or C6-C20 arylalkyl groups, which can optionally contain up to 2 heteroatoms or silicon atoms, R1 is a C6-C20-aryl, which can be unsubstituted or substituted by one or up to 5 linear or branched C1-C10 alkyl group(s), R2 is a saturated linear or cyclic C3-C20 alkyl group or a branched CR3R4R5 group, wherein R3 is hydrogen or an C1-C20 alkyl group and R4 and R5 are the same or are different and can be an C1-C20 alkyl group and (ii) a boron containing cocatalyst
    Type: Application
    Filed: December 12, 2017
    Publication date: March 12, 2020
    Inventors: Noureddine AJELLAL, Anna FAIT, Luigi RESCONI, Vyatcheslav V. IZMER, Dmitry S. KONONOVICH, Alexander Z. VOSKOBOYNIKOV, Rafael SABLONG, Timo SCIARONE
  • Publication number: 20200071344
    Abstract: The present disclosure provides methods for making quinolinyldiamine products from quinolinyl starting materials. In addition, the quinolinyldiamines can be used as ligands or ligand precursors for catalysts, e.g. for use in olefin polymerization.
    Type: Application
    Filed: August 26, 2019
    Publication date: March 5, 2020
    Inventors: Oleg V. Samsonov, Mikhail I. Sharikov, Georgy P. Goryunov, Dmitry Dmitry Uborsky, Alexander Z. Voskoboynikov, Michelle E. Titone, John R. Hagadorn, Jo Ann M. Canich
  • Patent number: 10550209
    Abstract: Disclosed are novel hafnium-based metallocene catalyst compounds with the following characteristics: 1) 4,5-dialkyl substitutions on a fluorenyl ligand, and optionally additional substitutions, 2) a cyclopentadienyl ligand, optionally with substitutions, and 3) a bridging group from group 14 of the Periodic Table. Also disclosed are catalyst systems comprising such catalyst compounds and their uses thereof, and polymers produced using such catalyst systems.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: February 4, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jo Ann M. Canich, Ian C. Stewart, Ilya S. Borisov, Bogdan A. Guzeev, Dmitry V. Uborsky, Alexander Z. Voskoboynikov
  • Patent number: 10487161
    Abstract: This invention relates to a novel group 2, 3 or 4 transition metal metallocene catalyst compound having at least one arenyl ligand substituted with: 1) a cyclopropyl group and, optionally, 2) at at least one other group, such as a hydrocarbyl, a heteroatom or a heteroatom containing group.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: November 26, 2019
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jo Ann M. Canich, Alexander Z. Voskoboynikov, Dmitry V. Uborsky, Ilya S. Borisov, Alexey A. Tsarev, Pavel S. Kulyabin, Mikhail I. Sharikov, Oleg V. Samsonov, Georgy P. Goryunov
  • Publication number: 20190308995
    Abstract: A complex of formula (I) wherein M is zirconium or hafnium; each X independently is a sigma ligand; L is a divalent bridge selected from —R?2C—, —R?2C—CR?2—, —R?2Si—, —R?2Si—SiR?2—, —R?2Ge—, wherein each R? is independently a hydrogen atom or a C1-C20-hydrocarbyl group optionally containing one or more silicon atoms or heteroatoms of Group 14-16 of the periodic table or fluorine atoms, and optionally two R? groups taken together can form a ring; R2 and R2? are each independently a C1-C20 hydrocarbyl group, —OC1-hydrocarbyl group or —SC1-20 hydrocarbyl group; R5 is a —OC1-20 hydrocarbyl group or —SC1-20 hydrocarbyl group, said R5 group being optionally substituted by one or more halo groups; R5? is hydrogen or a C1-20 hydrocarbyl group; —OC1-20 hydrocarbyl group or —SC1-20 hydrocarbyl group; said C1-20 hydrocarbyl group being optionally substituted by one or more halo groups; R6 and R6? are each independently a C1-20 hydrocarbyl group; —C1-20 hydrocarbyl group or —SC1-20 hydrocarbyl group; each R1 and R1? are
    Type: Application
    Filed: November 17, 2017
    Publication date: October 10, 2019
    Inventors: Noureddine AJELLAL, Luigi RESCONI, Vyatcheslav V. IZMER, Dmitry S. KONONOVICH, Alexander Z. VOSKOBOYNIKOV, Ville VIRKKUNEN
  • Patent number: 10400048
    Abstract: The invention relates to a metallocene complex according to formula I wherein M is a metal selected from lanthanides or transition metals from group 3, 4, 5 or 6 of the Periodic System of the Elements, Q is an anionic ligand to M, k is the number of Q groups and equals the valence of M minus 2, R is a bridging group containing at least one carbon atom bonded to the indenyl moiety at 2-position, R1, R2, R3 and R4 are each independently chosen from the group consisting of H, a halogen atom and a C1-C20 hydrocarbylgroup, and wherein at least one of R1 and R2 is not H, and at least one of R3 and R4 is not H. The invention also relates to a catalyst comprising the metallocene complex, to a process for making polyolefins and to the use of the polyolefins for making articles.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: September 3, 2019
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Shaneesh Vadake Kulangara, Nicolaas Hendrika Friederichs, Anton Ginzburg, Luca Rongo, Alexander Z. Voskoboynikov, Vyatcheslav V. Izmer, Dmitry S. Kononovich, Oleg Samsonov, Abbas-Alli Ghudubhai Shaikh, Vincenzo Busico, Roberta Cipullo, Ilya Borisov, Anamitra Chatterjee, Dmitry Uborsky
  • Patent number: 10208140
    Abstract: Quinolinyldiamido transition metal complexes are disclosed for use in alkene polymerization to produce multimodal polyolefins.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: February 19, 2019
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: John R. Hagadorn, Patrick J. Palafox, Peijun Jiang, Yaohua Gao, Xin Chen, Georgy P. Goryunov, Mikhail I. Sharikov, Dmitry V. Uborsky, Alexander Z. Voskoboynikov
  • Patent number: 10167355
    Abstract: Catalyst system for producing ethylene copolymers in a high temperature solution process, the catalyst system comprising (i) a metallocene complex of formula (I) wherein M is Hf or Zr X is a sigma ligand, L is a bridge of the formula —SiR82—, wherein each R8 is independently a C1-C20-hydrocarbyl, tri(C1-C20-alkyl)silyl, C6-C20-aryl, C7-C20-arylalkyl or C7-C20-alkylaryl n is 0, 1 or 2 R1 and R1? are the same or can be different and can be a linear or branched C1-C6-alkyl group, R2 and R2? are the same or are different and are a CH2—R9 group, with R9 being H or linear or branched C1-C6-alkyl group R5 and R5? are the same or are different and can be H or a linear or branched C1-C6-alkyl group or a OR group, wherein R is a C1-C6-alkyl group R6 and R6? are the same or are different and can be H or a C(R10)3 group, with R10 being the same or different and R10 can be H or a linear or branched C1-C6-alkyl group or R5 and R6 and/or R5? and R6? taken together form an unsubstituted 4-7 membered ring condensed to the ben
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: January 1, 2019
    Assignee: BOREALIS AG
    Inventors: Noureddine Ajellal, Roberta Pellecchia, Luigi Resconi, Vyatcheslav V. Izmer, Dmitry S. Kononovich, Alexander Z. Voskoboynikov
  • Patent number: 10150821
    Abstract: Heterocyclic amido transition metal complexes are disclosed for use in alkene polymerization to produce polyolefins, preferably multimodal polyolefins. The heterocyclic amido transition metal complexes are formed by the chelation of a tridentate dianionic heterocyclic amido ligand to a group 3, 4, or 5 transition metal, where the tridentate ligand coordinates to the metal forming a five-membered ring and an eight-membered ring.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: December 11, 2018
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: John R. Hagadorn, Jo Ann M. Canich, Alexander Z. Voskoboynikov, Pavel S. Kulyabin, Georgy P. Goryunov, Dmitry V. Uborsky
  • Publication number: 20180244816
    Abstract: Disclosed are novel hafnium-based metallocene catalyst compounds with the following characteristics: 1) 4,5-dialkyl substitutions on a fluorenyl ligand, and optionally additional substitutions, 2) a cyclopentadienyl ligand, optionally with substitutions, and 3) a bridging group from group 14 of the Periodic Table. Also disclosed are catalyst systems comprising such catalyst compounds and their uses thereof, and polymers produced using such catalyst systems.
    Type: Application
    Filed: April 25, 2018
    Publication date: August 30, 2018
    Inventors: Jo Ann M. Canich, Ian C. Stewart, Ilya S. Borisov, Bogdan A. Guzeev, Dmitry V. Uborsky, Alexander Z. Voskoboynikov
  • Patent number: 9988471
    Abstract: Disclosed are novel hafnium-based metallocene catalyst compounds with the following characteristics: 1) 4,5-dialkyl substitutions on a fluorenyl ligand, and optionally additional substitutions, 2) a cyclopentadienyl ligand, optionally with substitutions, and 3) a bridging group from group 14 of the Periodic Table. Also disclosed are catalyst systems comprising such catalyst compounds and their uses thereof, and polymers produced using such catalyst systems.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: June 5, 2018
    Assignee: ExxonMobil Chemical Patents Inc
    Inventors: Jo Ann M. Canich, Ian C. Stewart, Ilya S. Borisov, Bogdan A. Guzeev, Dmitry V. Uborsky, Alexander Z. Voskoboynikov
  • Publication number: 20180148522
    Abstract: The invention relates to a metallocene complex according to formula I wherein M is a metal selected from lanthanides or transition metals from group 3, 4, 5 or 6 of the Periodic System of the Elements, Q is an anionic ligand to M, k is the number of Q groups and equals the valence of M minus 2, R is a bridging group containing at least one carbon atom bonded to the indenyl moiety at 2-position, R1, R2, R3 and R4 are each independently chosen from the group consisting of H, a halogen atom and a C1-C20 hydrocarbylgroup, and wherein at least one of R1 and R2 is not H, and at least one of R3 and R4 is not H. The invention also relates to a catalyst comprising the metallocene complex, to a process for making polyolefins and to the use of the polyolefins for making articles.
    Type: Application
    Filed: May 24, 2016
    Publication date: May 31, 2018
    Inventors: Shaneesh VADAKE KULANGARA, Nicolaas Hendrika FRIEDERICHS, Anton GINZBURG, Luca RONGO, Alexander Z. VOSKOBOYNIKOV, Vyatcheslav V. IZMER, Dmitry S. KONONOVICH, Oleg SAMSONOV, Abbas-Alli Ghudubhai SHAIKH, Vincenzo BUSICO, Roberta CIPULLO, Ilya BORISOV, Anamitra CHATTERJEE, Dmitry UBORSKY
  • Publication number: 20180066083
    Abstract: This invention relates to a novel group 2, 3 or 4 transition metal metallocene catalyst compound having at least one arenyl ligand substituted with: 1) a cyclopropyl group and, optionally, 2) at at least one other group, such as a hydrocarbyl, a heteroatom or a heteroatom containing group.
    Type: Application
    Filed: October 31, 2017
    Publication date: March 8, 2018
    Inventors: Jo Ann M. Canich, Alexander Z. Voskoboynikov, Dmitry V. Uborsky, Ilya S. Borisov, Alexey A. Tsarev, Pavel S. Kulyabin, Mikhail I. Sharikov, Oleg V. Samsonov, Georgy P. Goryunov