Patents by Inventor KONSTANTIN EFIMOV

KONSTANTIN EFIMOV 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).

  • Publication number: 20230028139
    Abstract: The invention relates to a process for devulcanizing a vulcanized rubber mixture, comprising the following steps: A) providing or producing a vulcanized rubber mixture, B) comminuting the vulcanized rubber mixture to a granular material composed of vulcanized rubber particles, where the vulcanized rubber particles have a maximum particle diameter of 100 mm, C) extruding the vulcanized rubber particles produced in step B) in a twin-screw extruder at a shear rate of less than 100 s?1, where the temperature of the vulcanized rubber particles during extrusion is less than 200° C., to give a devulcanized rubber mixture having a temperature above 100° C., D) cooling the devulcanized rubber mixture in a further kneading unit, so as to give a devulcanized rubber mixture having a temperature in the range from 50° C. to 100° C. The invention further relates to an apparatus for performing the process and to the use of the apparatus for devulcanization of a vulcanized rubber mixture.
    Type: Application
    Filed: October 27, 2020
    Publication date: January 26, 2023
    Applicant: Continental Reifen Deutschland GmbH
    Inventors: Inga Soetbeer, Konstantin Efimov, Nils Krüger, Shreyas Naik, Thomas Völker, Hilke Wolf
  • Publication number: 20220372256
    Abstract: A method for producing a rubber-plastic composite, including the steps of (a) shaping an unvulcanized elastomer, (b) partially vulcanizing the shaped elastomer at a temperature of at least 140° C. up to a degree of vulcanization in the range from 10% to 40%, (c) cooling the partially vulcanized elastomer to a temperature of less than 100° C. within less than 20 minutes, (d) overmolding the partially vulcanized elastomer with a plastic, and (e) heat treating the partially vulcanized elastomer overmolded with a plastic at a temperature in the range from 100° C. to 170° C. for a duration of from 5 minutes to 5 hours to complete the vulcanization and form a rubber-plastic composite. The method further relates to a rubber-plastic composite obtainable by the method according to the invention and also to a shoe comprising the rubber-plastic composite obtainable by the method according to the invention.
    Type: Application
    Filed: September 1, 2020
    Publication date: November 24, 2022
    Applicant: Continental Reifen Deutschland GmbH
    Inventors: Konstantin Efimov, Anna-Lena Dreier, Klaus Hülsmann, Andreas Pawlik, Marco Kormann, Maximilian Drexler
  • Publication number: 20150000763
    Abstract: A valve body for a snap-in valve of a vehicle wheel includes a valve stem having a valve core and a jacket-shaped body connected fixedly to the valve stem having the valve core. The body is formed of a rubber mixture containing chloroprene rubber. A snap-in valve having the valve body is also provided.
    Type: Application
    Filed: June 27, 2014
    Publication date: January 1, 2015