VÚRUP
    • PatentsPatent file no. 278437

    Patent file no. 278437

    Derivatives of dicarboxylic acids as additives into low-lead and unleaded motor gasolines

    Document type: B6
    (21) Application No.: 351-92
    (22) Date of submission: 7.2.1992
    (40) Date of publishing of the application for a patent: 6.7.1994
    (47) Date of publishing of the granted patent in the Bulletin: 7.5.1997
    (51) International Patent Classification: C10L1/22,C10L1/18,C10L1/14
    (54) Name: Derivatives of dicarboxylic acids as additives into low-lead and unleaded motor gasolines
    (72) Author: Oravkin Juraj, Ing., Bratislava, SK;
    Bratský Daniel, Ing., CSc., Bratislava, SK;
    Fehér Pavol, Ing., Šamorín, SK;
    Boška Miloš, Ing., Bratislava, SK;
    (71,73) Owner: Slovnaft VÚRUP, a. s., Bratislava, SK;
    (57) Annotation: Derivatives of dicarboxylic acids as additives into low-lead and unleaded motor gasolines are described acting as prevention of wear of exhaust valves seats in cars that are not adapted to combust the unleaded motor gasolines. The above mentioned derivatives have the structural chemical formula (I) whereas the meaning of the particular symbols is given in the description.