High molecular weight mannich bases as engine oil additives

摘要: Condensation products of (1) high molecular weight alkyl substituted phenol wherein the substituent is derived from a polyalkene 600 to 3000, (2) an amine containing NH group, and (3) aldehyde in molar ratio 1:0.1 10:0.1 10 respectively may be prepared by reacting materials at 20 DEG 200 C. The substituents polypropylene, polybutylene or polyamylene, which reacted with phenol, resorcinol, hydroquinone, catechol, cresol, xylenol, amylphenol, hydroxydiphenyl, benzylphenol, phenylethylphenol, resins, methylhydroxydiphenyl, guiacol, naphthols methyl, tolyl, xylyl benzyl naphthols, anthranol, phenanthrol, phenoxyphenol, chlorophenol hydroxyphenyl sulphides presence boron trifluoride etherate. Specified amines include alkylene diamines, polyalkylene polyamines N-acyl derivatives thereof, aromatic heterocyclic amines. aldehydes are formaldehyde, acetaldehyde, aldol, benzaldehyde furfural. useful as lubricating oil additives. Examples describe preparation condensates polypropenylphenol dimethylamine, dimethylaminopropylamine, tetraethylenepentamine, (5) N - acetyl tetraethylenepentamine (6) diethylenetriamine; polybutenylphenol (4) tetraethylenepentamine; sulphide (7) diethylenetriamine.ALSO:Lubricating compositions comprise natural synthetic oils detergent additives condensation alkenyl substitutent has having group ratios 1:0.1-10:0.1-10. also conventional oiliness extreme pressure agents; corrosion, oxidation rust inhibitors, viscosity index improvers, colouring agents auxiliary detergents. polypropenyl, polybutenyl polypentenyl phenol. polyamine acyl derivative amine. Many suitable reactants listed, examples comprising mineral oils, 1,3-dimethylbutyl zinc dithiophosphate corrosion inhibitor, tetraethylene pentamine, N-acetyl pentamine di-ethylene triamine; pentamine; diethylene triamine.