摘要:
Mannich additives formed from a tertiary carbinamine, a substantially hydrocarbon compound having at least one acidic or active hydrogen, a polyamine and a formaldehyde-yielding reagent.
摘要:
A transamination process for producing Mannich products comprising reacting a polyamine with a substantially formaldehyde-free mononitrogen Mannich adduct.
摘要:
An improved low viscosity (i.e.) 5 W to 71/2 W engine oil resistant to oxidation and consumption comprising a major portion of a lubricating oil stock, a sulfurized oil, a dispersant, an anti-corrosion agent, an anti-rust agent, a detergent, an anti-oxidant, and a viscosity index improver.
摘要:
A process for incorporating molybdenum into overbased alkaline earth metal and alkali metal sulfonates, phenates and salicylates. The incorporation is a post addition of molybdenum into a previously prepared overbased composition. The resulting composition containing molybdenum is gel-free, haze-free, precipitate-free, has a reproducible Total Base Number (TBN) and is commercially acceptable for use in lubricating oil compositions.
摘要:
Reaction products obtained from the Mannich condensation of high molecular weight alkyl-substituted hydroxy aromatic compounds, amines and aldehydes provide improved detergency in liquid hydrocarbon fuels. Optionally, a non-volatile hydrocarbon carrier fluid may be included.