Thermal stability additives for jet fuels

摘要

A liquid jet fuel composition comprising:PP(a) a major portion of a liquid fuel; andPP(b) a minor effective portion of a thermal stabilizing additive prepared byP P(i) reacting a polyamine, an aldehyde and a phenol containing active hydrogen to form a phenol - aldehyde - amine condensate; and P P(ii) reacting said phenol - aldehyde - amine condensate and a succinic acid anhydride bearing a polyolefin - derived substituent containing residual unsaturation, thereby forming a phenol - aldehyde amine Mannich condensate polyamine succinimide product additive; and PP(iii) recovering said product additive.