| abstract |
1313633 Lubricants; fuels LUBRIZOL CORP 19 April 1971 [22 April 1970] 26627/71 Headings C5F and C5G [Also in Division C3] Lubricating and fuel compositions comprise as dispersants high molecular weight carboxylic acid compounds prepared by reacting (1) a halogenated substantially saturated aliphatic hydrocarbon containing at least 25 carbon atoms and an average of at least one halo atom per molecule and up to one halo atom per 25 carbon atoms with (2) an α- or #-halogenated saturated aliphatic carboxylic acid or halide, anhydride, ester, amide, imide, amidine or metal salt thereof containing up to 12 carbon atoms in the acyl moiety, the halogen substituents being chlorine or bromine, or a reaction product of such a carboxylic acid compound with an alcohol or amine. Specified lubricants are animal and vegetable oils; paraffinic, naphthenic, coal and shale oils; and synthetic lubricants such as polyolefins, alkyl benzenes, polyphenyls, polyalkylene oxides, dicarboxylic acid esters, phosphoric and phosphonic acid esters, alkyl diphenyl ethers, silicone and silicate oils and polymerized tetrahydrofurans. Specified fuels are diesel fuels, gasoline, kerosene, aviation gasoline, jet fuels and furnace fuels. Preferred halogenated hydrocarbons are chlorinated and brominated polyisobutylene, polypropylenes, polyethylenes and ethylene/propylene copolymers. Many suitable reactants are listed and examples describe the preparation of additives by reacting chlorinated polyisobutylene with (1 and 2) 3- chloropropanoic acid, (5 to 7) chloracetyl chloride, (8 and 9) diethyl chloromalonate, (11) chlorosuccinic anhydride, (12) chlorosuccinimide, (13) N,N - diethylamide of 2,3 - dichlorobutanoic acid, (15) methyl 3-bromopropanoate, (16) calcium 3-chloropropanoate, (17) lithium 3-chloropropanoate, (18) ethyl 3- chloropropanoate, (19) methyl 3-chloropropanoate and (20) amide of 3-chloropentanoic acid; and brominated polyisobutylene with (14) 3-chloropropionyl chloride; and by further reacting product (1) with sorbitol, product (2) with ethylene polyamines, product (7) with tetraethylene pentamine and product (8) with pentaerythritol and glycerol/propylene oxide adduct. Further examples describe compositions comprising (A) mineral lubricating oil, the above ester of product (8), zinc dinonylphosphorodithioate / hexene oxide adduct, sulphurized methyl ester of tall oil acids, polyisobutylene, polyalkyl methacrylate and lard oil; (B) gasoline and the sorbitol ester of product (1) and (C) kerosene and the above ethylene polyamine derivative of product (2). |