Patents by Inventor Zinaida V. Arkhipova

Zinaida V. Arkhipova 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 polymers and copolymers of higher .alpha.-olefines
    Patent number: 4226965
    Abstract: Polymerization or copolymerization of the starting monomers is carried out in a hydrocarbon medium in the presence of a catalyst containing an alkylaluminium chloride compound, a trialkylvanadate and an alkoxyderivative of titanium, or zirconium, or hafnium. The method of the present invention makes it possible to considerably increase the polymerization rate and degree of conversion in the preparation of polymers and copolymers of higher .alpha.-olefines. The resulting polymers of higher .alpha.-olefines have a stereoregular structure with a high degree of crystallinity which is manifested in an increased melting point of the resulting polymer.
    Type: Grant
    Filed: September 28, 1978
    Date of Patent: October 7, 1980
    Inventors: Vasily A. Grigoriev, Zinaida V. Arkhipova, Gurgen A. Balaev, Nikolai G. Bakajutov, Vera I. Vysotskaya, Arkady V. Polyakov, Vitaly M. Zapletnyak