DERIVATIVES OF DICARBOXYL ACIDS AS ADDITIVES TO THE LOW-LEAD OR LEAD-LESS MOTOR FUEL

摘要

This patent describes the derivatives of dicarboxyl acids playing role of additives to the motor fuel for cars containing a small or no quantities of lead, an acting of which enables to prevent an abrasion of clack seats closed to the exhausts in cars not prepared for consumption of motor fuel containing small or no quantities of lead. The above mentioned derivatives are of the structural chemical formula (I), however the meaning of the concrete individual symbols is explained in the description