MULTIFUNCTIONAL ADDITIVE TO MOTOR PETROL Russian patent published in 2009 - IPC C10L1/22 C10L1/226 C10L1/222 

FIELD: chemistry.

SUBSTANCE: invention relates to oil refining and petrochemistry, specifically to composition of a multifunctional additive to motor petrol based on monomethylaniline. The multifunctional additive to motor petrol contains aromatic amine, an admixture of amines, polyester and corrosion inhibitor. The additive is distinguished by that, it also contains a colour stabiliser, which is polyethylenepolyamine of general formula H₂N-(CH₂-CH₂-NH-)_nH, where n=1-5, or hydrazine-hydrate, as well as a solvent, with the following ratio of components, wt %: admixture of amines, polyester or corrosion inhibitor 0.5 to 3.5; polyethylenepolyamine of general formula H₂N-(CH₂-CH₂-NH-)_nH, where n=1-5, or hydrazine-hydrate 0.01 to 0.2; solvent 20.0 to 35.0; aromatic amine up to 100. The solvent is selected from: 2-ethylhexanol, toluene, xylene etc.

EFFECT: additive made in the proposed interval and ratio of components has high colour stability after 1 year of storage, along with good anti-detonation, detergent and anticorrosion properties.

2 cl, 2 tbl