Patents by Inventor Alexey A. Tsarev

Alexey A. Tsarev 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).

  • Cyclopropyl substituted metallocene catalysts
    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
  • Cyclopropyl Substituted Metallocene Catalysts
    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
  • Cyclopropyl substituted metallocene catalysts
    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
  • Cyclopropyl Substituted Metallocene Catalysts
    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
  • Catalyst compounds and use thereof
    Patent number: 8557936
    Abstract: This invention relates to Group 4 catalyst compounds containing di-anionic tridentate nitrogen/oxygen based ligands. The catalyst compounds are useful, with or without activators, to polymerize olefins, particularly ?-olefins, or other unsaturated monomers. Systems and processes to oligomerize and/or polymerize one or more unsaturated monomers using the catalyst compound, as well as the oligomers and/or polymers produced therefrom are also provided.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: October 15, 2013
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Garth R. Giesbrecht, Timothy M. Boller, Alexander Z. Voskoboynikov, Andrey F. Asachenko, Mikhail V. Nikulin, Alexey A. Tsarev
  • Catalyst compounds and use thereof
    Patent number: 8546501
    Abstract: This invention relates to Group 4 catalyst compounds containing di-anionic tridentate nitrogen/oxygen based ligands. The catalyst compounds are useful, with or without activators, to polymerize olefins, particularly ?-olefins, or other unsaturated monomers. Systems and processes to oligomerize and/or polymerize one or more unsaturated monomers using the catalyst compound, as well as the oligomers and/or polymers produced therefrom are also provided.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: October 1, 2013
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Garth R. Giesbrecht, Timothy M. Boller, Alexander Z. Voskoboynikov, Andrey F. Asachenko, Mikhail V. Nikulin, Alexey A. Tsarev
  • Catalyst compounds and use thereof
    Patent number: 8541522
    Abstract: This invention relates to Group 4 catalyst compounds containing di-anionic tridentate nitrogen/oxygen based ligands. The catalyst compounds are useful, with or without activators, to polymerize olefins, particularly ?-olefins, or other unsaturated monomers. Systems and processes to oligomerize and/or polymerize one or more unsaturated monomers using the catalyst compound, as well as the oligomers and/or polymers produced therefrom are also provided.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: September 24, 2013
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Garth R. Giesbrecht, Timothy M. Boller, Alexander Z. Voskoboynikov, Andrey F. Asachenko, Mikhail V. Nikulin, Alexey A. Tsarev
  • Catalyst compounds and use thereof
    Patent number: 8541521
    Abstract: Group 4 catalyst compounds containing di-anionic tridentate nitrogen/oxygen based ligands are provided. The catalyst compounds are useful, with or without activators, to polymerize olefins, particularly ?-olefins, or other unsaturated monomers. Systems and processes to oligomerize and/or polymerize one or more unsaturated monomers using the catalyst compound, as well as the oligomers and/or polymers produced therefrom are also provided.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: September 24, 2013
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Garth R. Giesbrecht, Timothy M. Boller, Alexander Z. Voskoboynikov, Andrey F. Asachenko, Mikhail V. Nikulin, Alexey A. Tsarev
  • Catalyst compounds and use thereof
    Patent number: 8530593
    Abstract: This invention relates to Group 4 dialkyl compounds supported by a pyridyl-amido-aryl (“PAA”), an anisole-amido-aryl (“AAA”), a phenoxy-amido-pyridyl (“PAPY”), an anisole-amido-phenoxy (“AAP”) or a anisole-amido-phenoxy (“AAP”) tridentate ligand. Such compounds can polymerize olefins, such as ethylene.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: September 10, 2013
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Garth R. Giesbrecht, Timothy M. Boller, Alexander Z. Voskoboynikov, Andrey F. Asachenko, Mikhail V. Nikulin, Alexey A. Tsarev
  • Catalyst Compounds and Use Thereof
    Publication number: 20110098430
    Abstract: This invention relates to Group 4 catalyst compounds containing di-anionic tridentate nitrogen/oxygen based ligands. The catalyst compounds are useful, with or without activators, to polymerize olefins, particularly ?-olefins, or other unsaturated monomers. Systems and processes to oligomerize and/or polymerize one or more unsaturated monomers using the catalyst compound, as well as the oligomers and/or polymers produced therefrom are also provided.
    Type: Application
    Filed: October 20, 2010
    Publication date: April 28, 2011
    Inventors: Garth R. GIESBRECHT, Timothy M. Boller, Alexander Z. Voskoboynikov, Andrey F. Asachenko, Mikhail V. Nikulin, Alexey A. Tsarev
  • Catalyst Compounds and Use Thereof
    Publication number: 20110098425
    Abstract: This invention relates to Group 4 catalyst compounds containing di-anionic tridentate nitrogen/oxygen based ligands. The catalyst compounds are useful, with or without activators, to polymerize olefins, particularly a-olefins, or other unsaturated monomers. Systems and processes to oligomerize and/or polymerize one or more unsaturated monomers using the catalyst compound, as well as the oligomers and/or polymers produced therefrom are also provided.
    Type: Application
    Filed: October 20, 2010
    Publication date: April 28, 2011
    Inventors: Garth R. Giesbrecht, Timothy M. Boller, Alexander Z. Voskoboynikov, Andrey F. Asachenko, Mikhail V. Nikulin, Alexey A. Tsarev
  • Catalyst Compounds and Use Thereof
    Publication number: 20110098431
    Abstract: This invention relates to Group 4 dialkyl compounds supported by a pyridyl-amido-aryl (“PAA”), an anisole-amido-aryl (“AAA”), a phenoxy-amido-pyridyl (“PAPY”), an anisole-amido-phenoxy (“AAP”) or a anisole-amido-phenoxy (“AAP”) tridentate ligand. Such compounds can polymerize olefins, such as ethylene.
    Type: Application
    Filed: October 20, 2010
    Publication date: April 28, 2011
    Inventors: Garth R. GIESBRECHT, Timothy M. Boller, Alexander Z. Voskoboynikov, Andrey F. Asachenko, Mikhail V. Nikulin, Alexey A. Tsarev
  • Catalyst Compounds And Use Thereof
    Publication number: 20110098427
    Abstract: Group 4 catalyst compounds containing di-anionic tridentate nitrogen/oxygen based ligands are provided. The catalyst compounds are useful, with or without activators, to polymerize olefins, particularly ?-olefins, or other unsaturated monomers. Systems and processes to oligomerize and/or polymerize one or more unsaturated monomers using the catalyst compound, as well as the oligomers and/or polymers produced therefrom are also provided.
    Type: Application
    Filed: October 20, 2010
    Publication date: April 28, 2011
    Inventors: Garth R. Giesbrecht, Timothy M. Boller, Alexander Z. Voskoboynikov, Andrey F. Asachenko, Mikhail V. Nikulin, Alexey A. Tsarev
  • Catalyst Compounds and Use Thereof
    Publication number: 20110098429
    Abstract: This invention relates to Group 4 catalyst compounds containing di-anionic tridentate nitrogen/oxygen based ligands. The catalyst compounds are useful, with or without activators, to polymerize olefins, particularly a-olefins, or other unsaturated monomers. Systems and processes to oligomerize and/or polymerize one or more unsaturated monomers using the catalyst compound, as well as the oligomers and/or polymers produced therefrom are also provided.
    Type: Application
    Filed: October 20, 2010
    Publication date: April 28, 2011
    Inventors: Garth R. Giesbrecht, Timothy M. Boller, Alexander Z. Voskoboynikov, Andrey F. Asachenko, Mikhail V. Nikulin, Alexey A. Tsarev