COMPOSITION OF LIQUID FUEL AND CONCENTRATE OF ADDITIVE Russian patent published in 1998 - IPC

FIELD: production of liquid fuel being used at low temperature. SUBSTANCE: composition comprises oil soluble ethylene copolymer. Beside fragments of ethylene derivatives said composition also comprises fragments having formula (1) -CH₂-CRR′- and fragments having formula (2) -CH₂-CRR²-, their summary amount being 7.5-35 mol %. In these formula R′ and R²-OOCR³, where R³ is hydrocarbyl group (wherein C is less or equal 8), proviso that fragments (1) differs from fragments (2) and if (1) is -(CH₂-CH(OOCCH₃),, then its content is not less than 5 mol %. Or said composition comprises oil soluble ethylene copolymer comprising 7.5-35 mol % of fragments having formula (1) and oil soluble ethylene copolymer which comprises 7.5-35 mol % of fragments having formula (2) beside ethylene derivatives. Composition may additionally comprise polymer additives. EFFECT: decreased formation of paraffin at low temperature. 25 cl, 12 tbl