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: 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
  • Publication number: 20180030162
    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: Application
    Filed: June 29, 2017
    Publication date: February 1, 2018
    Inventors: John R. Hagadorn, Jo Ann M. Canich, Alexander Z. Voskoboynikov, Pavel S. Kulyabin, Georgy P. Goryunov, Dmitry V. Uborsky
  • Publication number: 20180002352
    Abstract: Quinolinyldiamido transition metal complexes are disclosed for use in alkene polymerization to produce multimodal polyolefins.
    Type: Application
    Filed: June 21, 2017
    Publication date: January 4, 2018
    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: 9834628
    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 least one other group, such as a hydrocarbyl, a heteroatom or a heteroatom containing group.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: December 5, 2017
    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: 20170320976
    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: Application
    Filed: May 3, 2016
    Publication date: November 9, 2017
    Inventors: Jo Ann M. Canich, Vyatcheslav V. Izmer, Dmitry S. Kononovich, Alexander Z. Voskoboynikov
  • Patent number: 9803037
    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: May 3, 2016
    Date of Patent: October 31, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jo Ann M. Canich, Vyatcheslav V. Izmer, Dmitry S. Kononovich, Alexander Z. Voskoboynikov
  • Patent number: 9796795
    Abstract: This invention relates to a compound represented by the formula: TyCp?mMGnXq wherein: Cp? is a tetrahydroindacenyl group which may be substituted or unsubstituted, provided that when Cp? is tetrahydro-s-indacenyl: 1) the 3 and/or 4 positions are not aryl or substituted aryl, 2) the 3 position is not directly bonded to a group 15 or 16 heteroatom, 3) there are no additional rings fused to the tetrahydroindacenyl ligand, 4) T is not bonded to the 2-position, and 5) the 5, 6, or 7-position is geminally disubstituted; M is a group 3, 4, 5, or 6 transition metal; G is a heteroatom group represented by the formula JRiz where J is N, P, O or S, Ri is a C1 to C20 hydrocarbyl group, and z is 1 or 2; T is a bridging group; y is 0 or 1; X is a leaving group; m=1; n=1, 2 or 3; q=1, 2 or 3, and the sum of m+n+q is equal to the oxidation state of the transition metal.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: October 24, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jo Ann M. Canich, Crisita Carmen H. Atienza, Vyatcheslav V. Izmer, Dmitry S. Kononovich, Alexander Z. Voskoboynikov
  • Publication number: 20170174798
    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: October 25, 2016
    Publication date: June 22, 2017
    Inventors: Jo Ann M. Canich, Ian C. Stewart, Ilya S. Borisov, Bogdan A. Guzeev, Dmitry V. Uborsky, Alexander Z. Voskoboynikov
  • Patent number: 9598517
    Abstract: A catalyst comprising (i) an asymmetric complex of formula (I) wherein M is zirconium or hafnium; each X 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, C1-C20-alkyl, tri(C1-C20-alkyl)silyl, C6-C20-aryl, C7-C20-arylalkyl or C7-C20-alkylaryl; R2 and R2? are each independently linear C1-10 hydrocarbyl; R5 and R5? are each independently hydrogen or a C1-20 hydrocarbyl group; R6 and R6? are each independently hydrogen or a C1-20 hydrocarbyl group; R7 is hydrogen or a C1-20 hydrocarbyl group or is ZR3; Z is O or S, preferably O; R3 is a C1-10 hydrocarbyl group; Ar is an aryl or heteroaryl group having up to 20 carbon atoms optionally substituted by one or more groups R8; Ar? is an aryl or heteroaryl group having up to 20 carbon atoms optionally substituted by one or more groups R8?; and R8 and R8? are each independently is a C1-20 hydrocarbyl group; with the proviso that at least one of R6 o
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: March 21, 2017
    Assignee: Borealis AG
    Inventors: Luigi Resconi, Pascal Castro, Ville Virkkunen, Vyatcheslav V. Izmer, Dmitry S. Kononovich, Pavel Sergeevich Kulyabin, Alexander Z. Voskoboynikov
  • Publication number: 20170037165
    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: Application
    Filed: April 15, 2015
    Publication date: February 9, 2017
    Inventors: Noureddine AJELLAL, Roberta PELLECCHIA, Luigi RESCONI, Vyatcheslav V. IZMER, Dmitry S. KONONOVICH, Alexander Z. VOSKOBOYNIKOV
  • Patent number: 9469699
    Abstract: An asymmetric complex of formula (I) wherein M is zirconium or hafnium; each X 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, C1-C20-alkyl, tri(C1-C20-alkyl)silyl, C6-C20-aryl, C7-C20-arylalkyl or C7-C20-alkylaryl; R2 and R2? are each independently a C1-C20 hydrocarbyl radical; R5? is a C1-20 hydrocarbyl group; R5 is hydrogen, or a C1-20 hydrocarbyl group; R6 is a non tertiary C1-10 alkyl group or C6-10-aryl group or C7-10 arylalkyl group or ZR3; R6? is a tertiary C4-20 alkyl group; Z is O or S; R3 is a C1-20 hydrocarbyl group optionally substituted with halo; Ar is an aryl or heteroaryl group having up to 20 carbon atoms optionally substituted by one or more groups R1; Ar? is an aryl or heteroaryl group having up to 20 carbon atoms optionally substituted by one or more groups R1; each R1 is a C1-20 hydrocarbyl group or two R1 groups on adjacent carbon atoms taken together can form a fused 5
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: October 18, 2016
    Assignee: BOREALIS AG
    Inventors: Luigi Resconi, Pascal Castro, Ville Virkkunen, Vyatcheslav V. Izmer, Dmitry S. Kononovich, Pavel Sergeevich Kulyabin, Alexander Z. Voskoboynikov