Patents by Inventor Tatyana Lvovna Jufa

Tatyana Lvovna Jufa 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 polyalkenamers
    Patent number: 3933777
    Abstract: A method for the preparation of polyalkenamer which comprises in an polymerization with ring opening of the alicyclic unsaturated compound in the presence of a catalyst comprising three components:A. a compound of a transition metal of Groups IV-VIII of the Periodic System;B. a compound of a metal of Groups I-VI of the Periodic System; andC. quinone or its halogen derivative or an acid halide of sulfur-containing acid having the general formula R.sub.k SO.sub.n Q.sub.t wherein R is halogen, aryl, alkyl, nitro- or amino-group; S can be sulfur; O represents oxygen; Q stands for halogen; k = 0-1; n = 1-2; t = 1-2; The aforespecified component c makes the catalyst more active.
    Type: Grant
    Filed: March 11, 1974
    Date of Patent: January 20, 1976
    Inventors: Boris Davidovich Babitsky, Tamara Trofimovna Denisova, Vitaly Abramovich Kormer, Irina Moiseevna Lapuk, Mark Iosifovich Lobach, Nadezhda Pavlovna Simanova, Kim Sergeevich Soloviev, Tamara yakovlevna Chepurnaya, Tatyana Lvovna Jufa