Patents by Inventor Victor Cherstkov

Victor Cherstkov 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).

  • 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
  • Fluorosulfates of hexafluoroisobutylene and its higher homologs and their derivatives
    Publication number: 20070167651
    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, Viacheslav Petrov, Paul Resnick
  • Fluorosulfates of hexafluoroisobutylene and its higher homologs and their derivatives
    Publication number: 20070167640
    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, Viacheslav Petrov, Weiming Qiu, Paul Resnick
  • 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