Patents by Inventor Viacheslav A. Petrov

Viacheslav A. Petrov 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).

  • ELECTROLUMINESCENT IRIDIUM COMPOUNDS HAVING RED-ORANGE OR RED EMISSION AND DEVICES MADE WITH SUCH COMPOUNDS
    Publication number: 20090162694
    Abstract: The present invention is generally directed to electroluminescent Ir(III) complexes which have emission maxima in the red-orange to red region of the visible spectrum, and devices that are made with the Ir(III) complexes.
    Type: Application
    Filed: July 30, 2007
    Publication date: June 25, 2009
    Inventors: DANIEL LECLOUX, VIACHESLAV PETROV, YING WANG
  • Fluorosulfates of hexafluoroisobutylene and its higher homologs and their derivatives
    Patent number: 7531689
    Abstract: Hexafluoroisobutylene and its higher homologs are easily reacted with SO3 to give fluorosulfates of the formula CH2?C(R)CF2OSO2F, wherein R is a linear branched or cyclic fluoroalkyl group comprised of 1 to 10 carbon atoms and may contain ether oxygen. These compounds react under mild conditions with many nucleophiles to give CH2?C(R)CF2X, where X is derived from the nucleophile. This reaction provides a route to many substituted hexafluoroisobutylenes, which copolymerize easily with other fluoro- and hydrocarbon monomers such as vinylidene fluoride and ethylene.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: May 12, 2009
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Victor Filippovich Cherstkov, Nina Ivanova Delyagina, Richard E. Fernandez, Viacheslav A. Petrov, Weiming Qiu, Paul R. Resnick
  • Fluorinated arylethers and methods for use thereof
    Patent number: 7531700
    Abstract: The invention provides new fluorinated solvents that have many uses. One such use is as a solvent useful in the deposition of organic active materials in the manufacture of organic electronic devices. The new fluorinated solvents are fluorinated arylethers and can be readily prepared from corresponding phenols and fluorinated olefins.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: May 12, 2009
    Assignee: E.I. du Pont de Nemours and Company
    Inventor: Viacheslav A. Petrov
  • Electroluminescent platinum compounds and devices made with such compounds
    Patent number: 7517594
    Abstract: The present invention is generally directed to electroluminescent Pt(II) complexes which have emission maxima across the visible spectrum, and devices that are made with the Pt(II) complexes.
    Type: Grant
    Filed: June 17, 2005
    Date of Patent: April 14, 2009
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Daniel David Lecloux, Viacheslav A. Petrov, Eric Maurice Smith, Ying Wang
  • PROCESS FOR FLUORINATION USING 1,1,2,2-TETRAFLUOROETHYL-N,N-DIMETHYLAMINE
    Publication number: 20090030246
    Abstract: A process for making a fluorinated product comprising contacting an alcohol with 1,1,2,2-tetrafluoroethyl-N,N-dimethylamine to produce a product mixture containing the fluorinated product and N,N-dimethyl difluoroacetamide, quenching the product mixture in water to form a first organic phase and an aqueous phase, recovering fluorinated product by separating the first organic phase from the aqueous phase, treating the aqueous phase to recover N,N-dimethyl difluoroacetamide, and converting recovered N,N-dimethyl difluoroacetamide to 1,1,2,2-tetrafluoroethyl-N,N-dimethylamine.
    Type: Application
    Filed: July 24, 2008
    Publication date: January 29, 2009
    Applicant: E. I. du Pont de Nemours and Company
    Inventors: Christopher P. JUNK, Viacheslav A. Petrov
  • Electroluminescent iridium compounds with fluorinated phenylpyridine ligands, and devices made with such compounds
    Patent number: 7476452
    Abstract: The present invention is generally directed to electroluminescent Ir(III) compounds, the substituted 2-phenylpyridines that are used to make the Ir(III) compounds, and devices that are made with the Ir(III) compounds.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: January 13, 2009
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Kerwin D. Dobbs, Norman Herron, Viacheslav A. Petrov
  • Catalytic isomerization processes of 1,3,3,3-tetrafluoropropene for making 2,3,3,3-tetrafluoropropene
    Patent number: 7420094
    Abstract: The present invention relates to a process of catalyzed isomerization of HFC-1234ze to make HFC-1234yf. The process comprises contacting HFC-1234ze with a suitable catalyst in a reactor to obtain a product mixture comprising HFC-1234yf.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: September 2, 2008
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Viacheslav A. Petrov, Mario Joseph Nappa
  • PROCESS FOR PREPARING HEXAFLUOROISOBUTENE EPOXIDE
    Publication number: 20080177097
    Abstract: Processes for preparing hexafluoroisobutene epoxide (HFIBO) from CH2=C(CF3)2 (HFIB) are provided. The processes can be carried out in substantial absence of oxidation catalysts.
    Type: Application
    Filed: November 27, 2007
    Publication date: July 24, 2008
    Inventor: Viacheslav A. Petrov
  • Catalytic isomerization processes of 1,3,3,3-tetrafluoropropene for making 2,3,3,3-tetrafluoropropene
    Publication number: 20080058562
    Abstract: The present invention relates to a process of catalyzed isomerization of HFC-1234ze to make HFC-1234yf. The process comprises contacting HFC-1234ze with a suitable catalyst in a reactor to obtain a product mixture comprising HFC-1234yf.
    Type: Application
    Filed: August 31, 2007
    Publication date: March 6, 2008
    Applicant: E. I. DUPONT DE NEMOURS AND COMPANY
    Inventors: Viacheslav A. Petrov, Mario Joseph Nappa
  • Catalytical production processes for making hydrohalopropanes and hydrofluorobutanes
    Publication number: 20080027250
    Abstract: A process is disclosed for making hydrohalopropanes or hydrofluorobutanes. The process involves reacting a hydrofluoromethane with a fluoroolefin in the presence of an aluminum catalyst to produce a hydrohalopropane or a hydrofluorobutane. The hydrofluoromethane is CH2F2 or CH3F. The fluoroolefin is CF2?CF2, ClFC?CF2, or CF3CF?CF2.
    Type: Application
    Filed: July 20, 2007
    Publication date: January 31, 2008
    Inventors: Xuehui Sun, Mario Nappa, Velliyur Rao, Viacheslav Petrov, Ekaterina Swearingen, Nina Delyagina, Victor Cherstkov
  • Electroluminescent platinum compounds and devices made with such compounds
    Patent number: 7320833
    Abstract: The present invention is generally directed to electroluminescent Pt(II) complexes which have emission maxima across the visible spectrum, and devices that are made with the Pt(II) complexes.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: January 22, 2008
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Kerwin D. Dobbs, Norman Herron, Viacheslav A. Petrov
  • ELECTROLUMINESCENT IRIDIUM COMPOUNDS HAVING RED-ORANGE OR RED EMISSION AND DEVICES MADE WITH SUCH COMPOUNDS
    Publication number: 20070292718
    Abstract: The present invention is generally directed to electroluminescent Ir(III) complexes which have emission maxima in the red-orange to red region of the visible spectrum, and devices that are made with the Ir(III) complexes.
    Type: Application
    Filed: July 30, 2007
    Publication date: December 20, 2007
    Inventors: DANIEL LECLOUX, VIACHESLAV PETROV, YING WANG
  • Electroluminescent iridium compounds with fluorinated phenylpyridine ligands, and devices made with such compounds
    Publication number: 20070292713
    Abstract: The present invention is generally directed to electroluminescent Ir(III) compounds, the substituted 2-phenylpyridines that are used to make the Ir(III) compounds, and devices that are made with the Ir(III) compounds.
    Type: Application
    Filed: February 6, 2004
    Publication date: December 20, 2007
    Inventors: Kerwin Dobbs, Norman Herron, Viacheslav Petrov
  • Red emitter complexes of IR(III) and devices made with such compounds
    Publication number: 20070278936
    Abstract: There are provided compounds of Formulae I and II: where: n is 1, 2 or 3; p is 0, 1 or 2; the sum of n +p is 3; R1 R2, R3 and R4 are each independently H, F, alkyl, trialkylsilyl, triarylsilyl, aryl or substituted aryl. R5 and R7 are each independently alkyl or aryl; and R6 is H or alkyl. R8 is H, F, or alkyl There are also provided electronic devices containing such compounds.
    Type: Application
    Filed: June 2, 2006
    Publication date: December 6, 2007
    Inventors: Norman Herron, Ying Wang, Viacheslav A. Petrov, Mark A. Guidry, Jeffrey A. Merlo, Kerwin D. Dobbs
  • Fluorosulfates of hexafluoroisobutylene and its higher homologs and their derivatives
    Patent number: 7301059
    Abstract: Hexafluoroisobutylene and its higher homologs are easily reacted with SO3 to give fluorosulfates of the formula CH2?C(R)CF2OSO2F, wherein R is a linear branched or cyclic fluoroalkyl group comprised of 1 to 10 carbon atoms and may contain ether oxygen. These compounds react under mild conditions with many nucleophiles to give CH2?C(R)CF2X, where X is derived from the nucleophile. This reaction provides a route to many substituted hexafluoroisobutylenes, which copolymerize easily with other fluoro- and hydrocarbon monomers such as vinylidene fluoride and ethylene.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: November 27, 2007
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Victor Filippovich Cherstkov, Nina Ivanova Delyagina, Viacheslav A. Petrov, Weiming Qiu, Paul R. Resnick
  • Electroluminescent bis-cyclometalled iridium compounds and devices made with such compounds
    Publication number: 20070259205
    Abstract: One embodiment of this invention is bis-cyclometalled electroluminescent complexes of iridium(III). Another embodiment of this invention is electronic devices in which the active layer includes an bis-cyclometalled electroluminescent Ir(III) complex.
    Type: Application
    Filed: May 8, 2006
    Publication date: November 8, 2007
    Inventors: Alex Ionkin, William Marshall, Ying Wang, Viacheslav Petrov
  • Electroluminescent iridium compounds with fluorinated phenylpyridines, phenylpyrimidines, and phenylquinolines and devices made with such compounds
    Patent number: 7276726
    Abstract: The present invention is generally directed to electroluminescent Ir(III) compounds, the substituted 2-phenylpyridines, phenylpyrimidines, and phenylquinolines that are used to make the Ir(III) compounds, and devices that are made with the Ir(III) compounds.
    Type: Grant
    Filed: October 29, 2003
    Date of Patent: October 2, 2007
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Vladimir Grushin, Daniel David Lecloux, Viacheslav A. Petrov, Ying Wang
  • Fluorosulfates of hexafluoroisobutylene and its higher homologs
    Patent number: 7276624
    Abstract: Hexafluoroisobutylene and its higher homologs are easily reacted with SO3 to give fluorosulfates of the formula CH2?C(R)CF2OSO2F, wherein R is a linear, branched or cyclic fluoroalkyl group comprised of 1 to 10 carbon atoms and may contain ether oxygen. These compounds react under mild conditions with many nucleophiles to give CH2?C(R)CF2X, where X is derived from the nucleophile. This reaction provides a route to many substituted hexafluoroisobutylenes, which copolymerize easily with other fluoro- and hydrocarbon monomers such as vinylidene fluoride and ethylene.
    Type: Grant
    Filed: May 9, 2003
    Date of Patent: October 2, 2007
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Victor Filippovich Cherstkov, Nina Ivanova Delyagina, Richard E. Fernandez, Viacheslav A. Petrov, Paul R. Resnick
  • Electroluminescent iridium compounds having red-orange or red emission and devices made with such compounds
    Patent number: 7250512
    Abstract: The present invention is generally directed to electroluminescent Ir(III) complexes which have emission maxima in the red-orange to red region of the visible spectrum and devices that are made with the Ir(III) complexes.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: July 31, 2007
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Daniel David Lecloux, Viacheslav A. Petrov, Ying Wang
  • Fluorosulfates of hexafluoroisobutylene and its higher homologs and their derivatives
    Publication number: 20070167652
    Abstract: Hexafluoroisobutylene and its higher homologs are easily reacted with SO3 to give fluorosulfates of the formula CH2?C(R)CF2OSO2F, wherein R is a linear branched or cyclic fluoroalkyl group comprised of 1 to 10 carbon atoms and may contain ether oxygen. These compounds react under mild conditions with many nucleophiles to give CH2?C(R)CF2X, where X is derived from the nucleophile. This reaction provides a route to many substituted hexafluoroisobutylenes, which copolymerize easily with other fluoro- and hydrocarbon monomers such as vinylidene fluoride and ethylene.
    Type: Application
    Filed: March 22, 2007
    Publication date: July 19, 2007
    Inventors: Victor Cherstkov, Nina Delyagina, Richard Fernandez, Viacheslav Petrov, Weiming Qiu, Paul Resnick, Robert Wheland