Patents by Inventor Tsipkina Irina Mikhailovna

Tsipkina Irina Mikhailovna 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).

  • Fluorinated imidoylamidine vulcanizing agents for curing perfluoroelastomers polymers
    Patent number: 8362167
    Abstract: The invention provides a compound and tautomeric forms thereof having the formula: wherein Rf1 is selected from the group consisting of hydrogen, a straight chain, branched secondary or branched tertiary C1-C20 perfluoroalkyl group optionally containing ether or thioether linkages and C1-C10 perfluoroalicyclic group optionally containing ether or thioether groups; Rf2 is a straight or branched C1-C20 perfluoroalkylene group optionally substituted with ether and thiother linkages; and X is selected from the group consisting of fluorine and The invention also provides perfluoroelastomeric compositions cured with the perfluoroimidoylamidines of the invention as well as combinations of perfluoroimidoylamidines and other curing agents.
    Type: Grant
    Filed: July 10, 2007
    Date of Patent: January 29, 2013
    Assignee: LODESTAR Inc.
    Inventors: Gubanov Viktor Andreevich, Kollar Alexander Nikolaevich, Volkova Margarita Alekseevna, Tsipkina Irina Mikhailovna