摘要:
Compounds comprising a Mannich reaction product of
a) polyisobutene-substituted alkylated succinimide, wherein the alkylated succinimide is derived from a succinate and an alkylene polyamine; b) n aldehyde; c) n alkyl substituted phenol. are disclosed, which are shown to have good detergency properties in hydrocarbon fuels.
摘要:
A process for reacting certain carboxylic reactants and at least one aldehyde or ketone with olefinic compounds then reacting the intermediate prepared thereby with ammonia, a hydrazine or an amine, products prepared thereby and, additive concentrates, lubricating oil and fuel compositions.
摘要:
There is disclosed a process for the preparation of a polyisobutyl hydroxyaromatic compound wherein the polyisobutyl substituent has an average molecular weight in the range of 400 to 5000, which comprises alkylating a hydroxyaromatic compound in the presence of an alkylation catalyst with a suitable polyisobutene containing at least 70% of a methyvinylidene isomer.
摘要:
Platinum group metal fuel additives are effective in fuel environments which make the exclusion of water impractical. The fuels additives comprise a platinum group metal compound and a water-functional composition selected from the group consisting of lipophilic emulsifiers, lipophilic organic compounds in which water is miscible and mixtures of these. The additives are preferably effective in fuel compositions having water contents of at least about 0.01 % water by weight.
摘要:
A lubricant-fuel mixture containing an amine salt and/or amide of a benzoic acid or thiobenzoic acid derivative, an amine salt of a phosphoric acid derivative, or certain quaternary ammonium hydroxides is effective in reducing the smoke emitted during operation of a two-cycle internal combustion engine.
摘要:
Certain known and novel additives have proved effective in suppressing or inhibiting the foaming tendencies of organic liquids, particularly petroleum fuels.
摘要:
The instant invention relates to a hydrocarbon composition, such as motor fuel and lubricant compositions, containing a polyetheramide as a deposit control additive, to a concentrate containing such a polyetheramide as a deposit control additive, and to a method for improving the operation of an internal combustion engine.
摘要翻译:作为沉积物控制添加剂,烃馏分含有式(I)的聚醚酰胺。 R = H或1-16(优选1-4)C烷基; R1-R4 = H或1-4C烷基; R5 = 7-22 C opt unsatd。 碳氢化合物 和a + b = 0-80。 还要求保护的是:(a)在惰性稳定的有机溶剂中含有10-80重量%(I)的浓缩物; 和(b)通过在所述馏出物中包含(I)来改进具有燃料计的IC发动机的操作; (I)在这种情况下具有R1-R4 = H或1-4C烃,R5 = 7-22C选择。 unsatd。 烷基。
摘要:
A fuel composition comprising a major amount of hydrocarbons boiling in the gasoline or diesel range and an effective detergent amount of a hydroxyalkyl-substituted amine which is the reaction product of: a) a polyolefin epoxide derived from a branched chain polyolefin having an average molecular weight of about 400 to 5,000; and b) a nitrogen-containing compound selected from ammonia, a monoamine having from 1 to 40 carbon atoms, and a polyamine having from 2 to about 12 amine nitrogen atoms and from 2 to about 40 carbon atoms.
(A) an acylating reagent, with (D) a polyalkenyl derivative of an ethylenically unsaturated carboxylic reagent (C), and (E) a polyamine containing at least two -NH₂ and/or - NH groups, or with (F) the pre-formed product of reagents (D) and (E), wherein the acylating reagent (A) is the reaction product of (B) a C₄-C₂₀ polyene or oligomer prepared therefrom, and (C) an ethylenically unsaturated carboxylic reagent; lubricating oil compositions, fuel compositions and additive concentrates containing them; and use of the reaction products as dispersant additives.