Patents by Inventor Eleonora Nikolaevna Deryagina

Eleonora Nikolaevna Deryagina 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).

  • Method of preparing symmetrical diarylsulphides
    Patent number: 4035424
    Abstract: This invention provides a method of preparing a symmetrical diarylsulphide which consists of passing an aromatic thiol, such as thiophenol, 4-thiocresol, and 1-thionaphthol, through a gas inert to said thiol, such as nitrogen, at a temperature of about from 500.degree. C to 600.degree. C to produce a symmetrical diarylsulphide, such as diphenylsulphide, di(4-tolyl) sulphide, and di(1-naphthyl) sulphide, and isolating said diarylsulphide.
    Type: Grant
    Filed: April 4, 1975
    Date of Patent: July 12, 1977
    Inventors: Eleonora Nikolaevna Deryagina, Mikhail Grigorievich Voronkov, Anatoly Samuilovich Nakhmanovich, Ljudmila Gerasimovna Klochkova
  • Method of preparing aromatic and heterocyclic sulphides and disulphides
    Patent number: 4010210
    Abstract: The method of preparing sulphides and disulphides of aromatic and heteroaromatic series which involves reacting an aromatic or heteroaromatic chlorine- or bromine-derivative with hydrogen sulphide at a temperature of 150.degree.-700.degree. C with subsequent isolation of the end product.
    Type: Grant
    Filed: April 29, 1975
    Date of Patent: March 1, 1977
    Inventors: Mikhail Grigorievich Voronkov, Eleonora Nikolaevna Deryagina, Evgeny Andreevich Chernyshev, Valentina Ivanovna Savushkina, Anatoly Samuilovich Nakhmanovich, Bella Moiseevna Tabenko