AMINOPOLYMER, METHOD OF PRODUCING AMINOPOLYMER AND USE THEREOF Russian patent published in 2020 - IPC C08G63/91 C08G65/333 C08F8/32 C10L1/22 C10L10/18 

FIELD: fuel industry.

SUBSTANCE: invention relates to an aminopolymer, a method for production thereof, use of an amine polymer as a detergent for liquid fuel, a detergent and a liquid fuel composition. Amine polymer has formula (IIA) given below, in which R₀ is selected from hydrogen atom, linear or branched C_5-15-alkyl and phenyl, substituted with one or more linear or branched C_5-15-alkyl groups; Ru are identical or different from each other and are independently selected from -CH₂-CH₂- and -CH₂-CH(CH₃)-, polyester main chain comprises at least part of links ; "y" denotes an average degree of polymerisation of the polyester segment and is value between 1 and 50; Link means a single bond or a linear or branched C_1-4-alkylene; R₁ and R₂ identical or different from each other and independently selected from hydrogen atom or linear or branched C_1-4-alkyl; R₃ or R₄ identical or different from each other and independently selected from hydrogen atom or linear or branched C_1-4-alkyl; R₆ or R₇ identical or different from each other and independently selected from a hydrogen atom, optionally substituted linear or branched C_1-4-alkyl and , where R₈ are identical or different from each other, and are independently selected from linear or branched C_2-6-alkylene; R₉ identical or different from each other and independently selected from hydrogen atom or linear or branched C_1-4-alkyl; R₁₀ is selected from a hydrogen atom or a linear or branched C_1-4-alkyl; "q" has values of 1, 2, 3 or 4; "a" has values of 1, 2 or 3; R' is a single bond; R₅ is selected from a hydrogen atom or a linear or branched C_1-4-alkyl. Method of producing the amine polymer involves oxidation of the alkenyl polymer using an oxidising agent. Oxidation product is then aminated with an aminating agent. Detergent contains 10–70 wt % aminopolymer and a diluent selected from polyolefin, mineral base oil, polyester and mixtures thereof. Liquid fuel composition contains 30–2000 mg/kg of washing additive.

(IIA).

EFFECT: invention enables to obtain a detergent with improved charcoal formation inhibition characteristics.

9 cl, 1 tbl, 16 ex, 7 dwg