DERIVATIVE OF ALKENYLSUCCINIMIDE AS DISPERSING ADDITION AGENT TO COMPOSITION LUBRICANT OILS, SUCCINATED OLIGOMER OF PROPYLENE AS AN INTERMEDIATE PRODUCT FOR SYNTHESIS OF ALKENYLSUCCINIMIDE DERIVATIVE AND LUBRICANT COMPOSITION Russian patent published in 1995 - IPC

FIELD: lubricant oils. SUBSTANCE: product: derivative of alkenylsuccinimide synthesized by interaction of maleic anhydride and atactic oligomer of propylene of the formula H(CH(CH₃)-CH₂)_n-C(CH₃) = CH₂ with molecular mass 1000-3000 at 200-235 C followed by treatment of synthesized succinated propylene oligomer (molar ratio of succinic acid and atactic propylene oligomer is 1-1.5:1) with amine of the formula H(NH(CH₂)_p)_m-NH₂ where p 2-4, m 3-6 at 160-180 C. Product lubricant composition containing lubricant oil and dispersing addition agent consisting of 1.0-2.5 wt.-% alkenylsuccinimide derivative of. EFFECT: improved method of synthesis.