Patents by Inventor Pavel S. Kulyabin

Pavel S. Kulyabin 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: 11180580
    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: Grant
    Filed: March 25, 2020
    Date of Patent: November 23, 2021
    Assignee: ExxonMobil Chemical Patents Inc.
    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: 20210017303
    Abstract: The present disclosure relates to silyl-bridged pyridylamide transition metal complexes and catalyst systems including silyl-bridged pyridylamide transition metal complexes and their use in polymerization processes to produce polyolefin polymers, such as polyethylene polymers and polypropylene polymers, from catalyst systems including one or more olefin polymerization catalysts, at least one activator, and an optional support.
    Type: Application
    Filed: June 23, 2020
    Publication date: January 21, 2021
    Inventors: John R. Hagadorn, Jo Ann M. Canich, Pavel S. Kulyabin, Dmitry V. Uborsky, Alexander Z. Voskoboynikov
  • 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
  • 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
  • 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: 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
  • 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
  • Patent number: 9458254
    Abstract: This invention relates to novel bridged a hafnium transition metal metallocene catalyst compounds having two indenyl ligands substituted at the 4 positions with a C1 to C10 alkyl, where the 3 positions are hydrogen (assuming the bridge position is counted as the one position) and the bridging atom is carbon or silicon which is incorporated into a cyclic group comprising 3, 4, 5, or 6 silicon and/or carbon atoms that make up the cyclic ring.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: October 4, 2016
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jo Ann M. Canich, Ilya S. Borisov, Arkady K. Golenishchev, Georgy P. Goryunov, Dmitry V. Uborsky, Pavel S. Kulyabin, Dmitry S. Kononovich, Vyatcheslav V. Izmer, Alexander Z. Voskoboynikov
  • Publication number: 20150025209
    Abstract: This invention relates to novel bridged a hafnium transition metal metallocene catalyst compounds having two indenyl ligands substituted at the 4 positions with a C1 to C10 alkyl, where the 3 positions are hydrogen (assuming the bridge position is counted as the one position) and the bridging atom is carbon or silicon which is incorporated into a cyclic group comprising 3, 4, 5, or 6 silicon and/or carbon atoms that make up the cyclic ring.
    Type: Application
    Filed: July 8, 2014
    Publication date: January 22, 2015
    Inventors: Jo Ann M. Canich, Ilya S. Borisov, Arkady K. Golenishchev, Georgy P. Goryunov, Dmitry V. Uborsky, Pavel S. Kulyabin, Dmitry S. Kononovich, Vyatcheslav V. Izmer, Alexander Z. Voskoboynikov
  • Publication number: 20150025207
    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: Application
    Filed: July 7, 2014
    Publication date: January 22, 2015
    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