Patents by Inventor Valery Mikhailovich Maschenko

Valery Mikhailovich Maschenko 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 of producing fine disperse alkylated silica compounds
    Patent number: 4030940
    Abstract: A method of producing fine-disperse alkylated silica compounds, characterized in that starting fine-disperse silica is subjected to treatment with water vapors at a temperature of 110.degree.-120.degree. C to attain the humidification degree of from 2 to 40 micromoles H.sub.2 O/m.sup.2 SiO.sub.2, the thus humidified silica being then treated with vapors of alkylchlorosilane at a temperature of 250.degree. to 310.degree. C. The method of the invention allows controlling the concentration of grafted alkyl groups in the resultant product within the range of from 4.7 to 8.0 micromoles of grafted alkyl groups per m.sup.2 of the surface of SiO.sub.2. Starting silica can be modified with oxides of metals, such as aluminium, titanium, iron or zirconium oxides, the resultant products exhibiting good hydrophobic properties when used as thickeners for lubrication materials.
    Type: Grant
    Filed: November 3, 1975
    Date of Patent: June 21, 1977
    Inventors: Alexei Alexeevich Chuiko, Valentin Anatolievich Tertykh, Vilyam Alexandrovich Sobolev, Valery Mikhailovich Maschenko, Vyacheslav Valentinovich Pavlov, Alexei Dmitrievich Chugai, Nikolai Vasilievich Khaber, Anatoly Borisovich Kondratenko, Vasily Ivanovich Vatamanjuk, Mikhail Ivanovich Khoma, Alexandr Nikolaevich Kutin, Jury Davydovich Shaposhnikov, Malvina Leontievna Galashina