Patents by Inventor Jury M. Smirnov

Jury M. Smirnov 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).

  • Phenol formaldehyde compression moulding composition comprising phenol formaldehyde-wood filler
    Patent number: 4194996
    Abstract: A compression-molding composition contains a phenol-formaldehyde resin, a filler, a curing agent, viz. hexamethylenetetramine, a curing accelerator such as calcium oxide or magnesium oxide, and a lubricant such as stearin or stearates. The filler comprises a product resulting from the treatment of crushed wood with an aqueous solution of phenol and formaldehyde at the boiling temperature of said solution in the presence of hydrochloric acid at a weight ratio between phenol, formaldehyde, water, hydrochloric acid, crushed wood equal to 0.15-0.80:0.045-0.864:6-15:0.0435-0.1086:1 respectively. Proportions of the components are as follows, parts by weight:______________________________________ phenol-formaldehyde resin 15 to 45 filler 47.5 to 75 curing agent 7 to 9 curing accelerator 0.5 to 1 lubricant 0.6 to 0.9 ______________________________________The compression-molding composition according to the present invention has an increased water-resistance (17 to 19 mg), heat-resistance (up to 182.degree. C.
    Type: Grant
    Filed: October 10, 1978
    Date of Patent: March 25, 1980
    Assignees: Uralsky Lesotekhnichesky Institut, Proizvodstvennoe Obiedinenie "Uralkhimplast"
    Inventors: Margarita D. Babina, Evgeny S. Dunjushkin, Galina I. Popova, Anatoly D. Sokolov, Jury M. Smirnov