Patents by Inventor Alexandr Nikolaevich Polukhin

Alexandr Nikolaevich Polukhin 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 preparing phenolamine resins
    Patent number: 4107141
    Abstract: Novel phenolamine resins which are condensation products of hexamethylene tetramine with a phenol component such as an alkylphenol with 5 to 12 carbon atoms in the alkyl radical, styrene-alkylated phenol, cumylphenol, diphenylolpropane, hydroxybenzoic acid. The condensation reaction is conducted at a temperature ranging from 90.degree. to 180.degree. C.The products thus prepared are efficient stabilizing agents for rubbers and vulcanizates.
    Type: Grant
    Filed: October 10, 1975
    Date of Patent: August 15, 1978
    Inventors: Vladimir Vasilievich Moiseev, Vladimir Vasilievich Kosovtsev, Galina Prokofievna Kolesnikova, Tamara Ivanovna Esina, Alexandr Nikolaevich Polukhin, Viktor Alexandrovich Zimnukhov