| abstract |
1505140 Lubricants; fuels LUBRIZOL CORP 17 Nov 1975 [29 Nov 1974] 47282/75 Headings C5F and C5G [Also in Divisions C2 and C3] A lubricant composition or a normally liquid fuel composition contains a major amount of either oil or normally liquid fuel as appropriate and a sludge-dispersing amount of a sulphurized nitrogen-containing Mannich condensation product wherein the said product comprises therein about 0À1 to about 20% sulphur by wt., based on the total weight of the said product which has been obtained by sulphurizing with elemental S a nitrogencontaining Mannich condensation product obtained by reaction of a substantially hydrocarbonsubstituted hydroxy-aromatic compound having at least one H atom bonded to an aromatic carbon atom, an aldehyde or aldehyde-producing material and an amino compound. |