Patents by Inventor Evelina Nikolayevna Sotnikova

Evelina Nikolayevna Sotnikova 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).

  • Patent number: 5770632
    Abstract: A process for reclaiming elastomeric material from elemental sulphur-cured elastomeric material having a vulcanized network without using hexamethylene tetramine, by treating the sulphur-cured elastomeric material having a vulcanized network with one or more rubber delinking accelerators selected from the group of zinc salts of thiocarbamates and zinc salts of dialkyl dithiophosphates, 2-mercaptobenzothiazole or derivatives thereof, thiurams, guanidines, 4,4'-dithiomorpholine and sulphenamides, and a zinc oxide activator in an amount sufficient to act as an activator for the accelerator(s) to delink the elastomeric material at a temperature below 70.degree. C., whereby the vulcanized network is opened up or delinked to provide a curable reclaimed elastomeric material capable of being vulcanized without adding rubber vulcanizing chemicals.
    Type: Grant
    Filed: November 3, 1995
    Date of Patent: June 23, 1998
    Inventors: Balachandra Chakkinggal Sekhar, Vitaly Abramovich Kormer, Evelina Nikolayevna Sotnikova, Vladimir Petrovich Mironyuk, Liudmila Nikolayevna Trunova, Natalya Alexeevna Nikitina