Patents by Inventor Vyatcheslav V. Izmer

Vyatcheslav V. Izmer 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: 7557171
    Abstract: A metallocene compound comprising a transition metal, a first substituted or unsubstituted indenyl or fluorenyl ligand pi—bonded to the transition metal, a second monoanionic ligand bonded to the transition metal, and a divalent bridging group bonded to the indenyl ligand and said second monoanionic ligand, wherein said bridging group is connected to the four, five, six or seven position of the indenyl ligand or to the one, two, three, four, five, six, seven or eight position of the fluorenyl ligand, and wherein at least one of one of the first and second ligands comprises at least one halogen substituent directly bonded to any sp2 carbon atom at a bondable ring position of the ligand.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: July 7, 2009
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Alexander Z. Voskoboynikov, Mikhail V. Nikulin, Vyatcheslav V. Izmer, Andrey F. Asachenko, Alexey N. Ryabov, Catalina L. Coker, Jo Ann M. Canich
  • Patent number: 7538168
    Abstract: A metallocene compound comprises a transition metal and at least one substituted monocyclic or polycyclic arene ligand bonded to the transition metal, wherein said arene ligand comprises at least one halogen substituent directly bonded to an sp2 carbon atom at a bondable ring position of an aromatic five-membered ring of said arene ligand.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: May 26, 2009
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Alexander Z. Voskoboynikov, Alexey N. Ryabov, Mikhail V. Nikulin, Alexander V. Lygin, Vyatcheslav V. Izmer, Andrey F. Asachenko, Catalina L. Coker, Jo Ann M. Canich
  • Patent number: 7446216
    Abstract: A metallocene compound is represented by the formula (1): A2YyMXn-2 wherein: M is a transition metal atom having a coordination number of n selected from Group 3, 4, 5 or 6 of the Periodic Table of Elements, or a lanthanide metal atom, or actinide metal atom; each A is independently a substituted polycyclic arenyl ligand pi-bonded to M, each A ligand includes at least one halogen substituent directly bonded to an sp2 carbon at a bondable ring position and, when each A is a substituted indenyl ligand and y is equal to one and the ligand includes at least one chloro, bromo or iodo substituent at the 4, 5, or 6 position of the indenyl ligand, then A also includes at least one other substituent in the indenyl ligand selected from hydrocarbyl, substituted hydrocarbyl, halogen, halocarbyl, substituted halocarbyl, silylcarbyl, substituted silylcarbyl, germylcarbyl, substituted germylcarbyl, or other heteroatom substituents wherein the heteroatom is bonded directly to a ring carbon of the ring structure ligand an
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: November 4, 2008
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Alexander Z. Voskoboynikov, Alexey N. Ryahov, Mikhail V. Nikulin, Alexander V. Lygin, Vyatcheslav V. Izmer, Andrey F. Asachenko, Catalina L. Coker, Jo Ann M. Canich
  • Patent number: 7276567
    Abstract: This invention relates to compounds represented by formula: wherein M is a group 3, 4, 5 or 6 transition, lanthanide, or actinide metal atom; E is an indenyl ligand substituted in any position with at least one aromatic or pseudoaromatic heterocyclic substituent that is bonded to the indenyl ring through a nitrogen or phosphorous ring heteroatom; A is a substituted or unsubstituted cyclopentadienyl, heterocyclopentadienyl, indenyl, heteroindenyl, fluorenyl, or heterofluorenyl ligand, or other mono-anionic ligand, or A may, independently, be E; Y is an optional bridging group; y is zero or one; X are, independently, univalent anionic ligands, and provided that when A is E, and y is one, and Y is bonded to the one position of each indenyl ligand, and per indenyl ligand there is only one aromatic heterocyclic or pseudoaromatic heterocyclic that is bonded to the indenyl ligand.
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: October 2, 2007
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Alexander Z. Voskoboynikov, Artyom Y. Lebedev, Vyatcheslav V. Izmer, Alexey N. Ryabov, Mikhail V. Nikulin, Jo Ann M. Canich
  • Patent number: 7214746
    Abstract: This invention relates to metallocene compounds represented by formula: wherein M is a group 3, 4, 5 or 6 transition metal atom, or a lanthanide metal atom, or actinide metal atom; E is a substituted or unsubstituted indenyl ligand that is bonded to Y through the two position of the indenyl ring; A is bonded to Y, and is a substituted or unsubstituted cyclopentadienyl ligand, a substituted or unsubstituted heterocyclopentadienyl ligand, a substituted or unsubstituted indenyl ligand, a substituted or unsubstituted heteroindenyl ligand, a substituted or unsubstituted fluorenyl ligand, a substituted or unsubstituted heterofluorenyl ligand, or other mono-anionic ligand, or A may, independently, be defined as E; Y is a phosphorus containing group that is bonded to both E and A, and is bonded via the phosphorus atom to E; and X are, independently, univalent anionic ligands, or both X are joined and bound to the metal atom to form a metallocycle ring, or both X join to form a chelating ligand, a diene ligand, o
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: May 8, 2007
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Alexander Z. Voskoboynikov, Denis N. Kazyulkin, Vyatcheslav V. Izmer, Alexey N. Ryabov, Jo Ann M. Canich
  • Patent number: 7214747
    Abstract: This invention relates to a metallocene compounds represented by formula: wherein M is a group 3, 4, 5 or 6 transition metal atom, or a lanthanide metal atom, or actinide metal atom; E is an indenyl ligand that is substituted with a PR2 group in the two position of the indenyl ligand, where each R is, independently a hydrocarbyl, substituted hydrocarbyl, halocarbyl, or substituted halocarbyl substituent, and additionally, E may be substituted with 0, 1, 2, 3, 4, 5 or 6 Rn where each Rn is, independently, a hydrocarbyl, substituted hydrocarbyl, halocarbyl, substituted halocarbyl, silylcarbyl, substituted silylcarbyl, germylcarbyl, or substituted germylcarbyl substituent, and optionally, two or more adjacent Rn substituents may join together to form a substituted or unsubstituted, saturated, partially unsaturated, or aromatic cyclic or polycyclic substituent; A is a substituted or unsubstituted cyclopentadienyl ligand, a substituted or unsubstituted heterocyclopentadienyl ligand, a substituted or unsubstit
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: May 8, 2007
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Alexander Z. Voskoboynikov, Denis N. Kazyulkin, Vyatcheslav V. Izmer, Alexey N. Ryabov, Jo Ann M. Canich