Patents by Inventor Elena Z. Branzburg

Elena Z. Branzburg 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).

  • Radiation curable polyborsiloxane polymer composition and method of using same to produce thermostable insulating materials
    Patent number: 4205026
    Abstract: According to the invention, the polymer composition comprises 8 to 20 parts by weight of polyborsiloxane having a molecular weight of 2,000 to 5,000 and including structural units --BOSi-- --(CH.sub.3).sub.2 SiO-- with a B:Si molar ratio of 1:4 to 5, 40 to 90 parts by weight of polysiloxane rubber, 10 to 60 parts by weight of an organic polymer which may be polyolefins, copolymers of olefins and dienes, halogenated polyolefins, and halogenated copolymers of olefins and dienes, taken separately or in combination with one another, 2 to 10 parts by weight of branched polyorganosiloxane having a molecular weight of 2,000 to 5,000, of the general formula: ##STR1## wherein: R=CH.sub.3, C.sub.6 H.sub.5, a=43 to 50 mole %, b=0 to 2 mole %, c=50 to 55 mole %, as well as 10 to 25 parts by weight of silicon dioxide, and 5 to 10 parts by weight of a variable valency metal oxide.
    Type: Grant
    Filed: November 8, 1978
    Date of Patent: May 27, 1980
    Inventors: Isaak Y. Poddubny, Sergei V. Averyanov, Lidia A. Averyanova, Mark P. Grinblat, Rinat R. Safin, Alexandr K. Breger, Vladimir A. Goldin, Elena Z. Branzburg, Viktor S. Kondratovsky, Albert G. Kabirov, Alexandr T. Sanzharovsky, Valeria B. Shtukareva, Jury N. Svatikov, Nadezhda M. Stepanova
  • Polymer composition and method of using same to produce thermostable insulating materials
    Patent number: 4151158
    Abstract: According to the invention, the polymer composition comprises 8 to 20 parts by weight of polyborsiloxane having a molecular weight of 2,000 to 5,000 and including structural units [BOSi] [(CH.sub.3).sub.2 SiO] with a B:Si molar ratio of 1:4 to 5, 40 to 90 parts by weight of polysiloxane rubber, 10 to 60 parts by weight of an organic polymer which may be polyolefins, copolymers of olefins and dienes, halogenated polyolefins, and halogenated copolymers of olefins and dienes, taken separately or in combination with one another, 2 to 10 parts by weight of branched polyorganosiloxane having a molecular weight of 2,000 to 5,000, of the general formula: ##STR1## WHEREIN: R=CH.sub.3, C.sub.6 H.sub.5, a=43 to 50 mole %, b=0 to 2 mole %, c=50 to 55 mole %, as well as 10 to 25 parts by weight of silicon dioxide, and 5 to 10 parts by weight of a variable valency metal oxide.
    Type: Grant
    Filed: January 17, 1977
    Date of Patent: April 24, 1979
    Inventors: Isaak Y. Poddubny, Sergei V. Averyanov, Lidia A. Averyanova, Mark P. Grinblat, Rinat R. Safin, Alexandr K. Breger, Vladimir A. Goldin, Elena Z. Branzburg, Viktor S. Kondratovsky, Albert G. Kabirov, Alexandr T. Sanzharovsky, Valeria B. Shtukareva, Jury N. Svatikov, Nadezhda M. Stepanova