Patents by Inventor Viktor E. Sheinin

Viktor E. Sheinin 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 for preparing phthalonitriles
    Patent number: 4439371
    Abstract: The present invention relates to methods for preparing aromatic nitriles and, more specifically, to a method for preparing phthalonitriles.The present method for preparing phthalonitriles resides in subjecting xylene to oxidative ammonolysis at a temperature of 340.degree. to 480.degree. C. in the presence of a catalyst having the following composition (in weight percent):antimony oxide: 1 to 25bismuth oxide: 1 to 20vanadium or molybdenum oxide: 0.2 to 15ferric oxide: 0.1 to 25carrier: the balanceThe method of the present invention will find application in the production of highly heat-resistant polyamide and polyester fibres, new types of xylylenediisocyanate, plastics, phthalocyanine dyes, as well as for producing terephthalic and isophthalic acids and other materials.
    Type: Grant
    Filed: March 9, 1981
    Date of Patent: March 27, 1984
    Inventors: Ramiz G. K. O. Rizaev, Mirabdulla M. O. Mirataev, Viktor E. Sheinin, Zemfira J. K. Magerramova, Jury N. Litvishkov, Sekher G. K. Gusein-Zade, Tofik S. O. Farzullaev, Nazaket M. K. Ilyasova