Oil additives containing a thiocarbamyl moiety

Details Oil additives containing a thiocarbamyl moiety Oil additives containing a thiocarbamyl moiety

C - Chemistry, Metallurgy

07

C

402/333, 196/68,

C07C 331/22 (2006.01) C07C 335/12 (2006.01) C07D 257/02 (2006.01) C07D 295/13 (2006.01) C10L 1/24 (2006.01) C10M 135/14 (2006.01) A61K 38/00 (2006.01)

Patent

CA 1159465

ABSTRACT Thiocarbamyl derivatives, including thioureas and thiocarbamic esters derived from the reaction of an alkenyl isothiocyanate with an amine and alcohol or thiol, respec- tively, have utility as an additive for hydrocarbons, parti- cularly fuels and mineral lubricating oils, whereby enhanced anticorrosion, oxidation inhibition and/or dispersancy acti- vity is imparted to said hydrocarbons. The derivatives can be made by the formation of an adduct of thiocyanogen halide and polyalkene, removal of the hydrogen halide from said adduct and thermal rearrangement of the product to provide a polyalkenyl isothiocyanate which can be subsequently de- rivatized to provide a thiocarbamyl moiety containing pro- duct having sludge dispersing properties.

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