| 主权项 |
1. A detergent composition for lubricants and fuels comprising an overbased calcium sulfonate and a low ash detergent, wherein the low ash detergent is present in an amount of from 1 to 20 wt %, based on the weight of the combination of overbased calcium sulfonate and low ash detergent, which low ash detergent comprises the reaction product of one or more acidic organic compound, one or more boron compound and an amine component comprising one or more amine, and which low ash detergent contains no metals, phosphorus or sulfur,
wherein the one or more acidic organic compound is one or more carboxylic acids selected from the group consisting of
substituted salicylic acids of formula I: wherein R1 is independently a hydrocarbyl group having from 1 to about 30 carbon atoms, and ‘a’ is an integer of 1 or 2;acids of formula wherein X and X′ are independently hydrogen, hydrocarbyl, and halogen, R13 is polymethylene or branched or unbranched alkylene, x is 0 or 1 and R14 is hydrogen or hydrocarbyl;acids of formula wherein R15 and R16 are independently selected from the group consisting of hydrogen, alkyl groups, and aralkyl groups, provided that both R15 and R16 are not hydrogen, each R17 are independently selected from the group consisting of hydrogen, alkyl groups, aralkyl groups, and cycloalkyl groups, and x is from 0 to 24;and salicylic acid calixarenes; the boron compound is selected from the group consisting of boric acid, trialkyl borates, alkyl boric acids, dialkyl boric acids, boric oxide, boric acid complex, cycloalkyl boric acids, dicycloalkyl boric acids, diaryl boric acids, and substitution products of the foregoing with alkoxy groups, alkyl groups, alkyl groups; and the amine component comprises one or more amine selected from the group consisting of alkoxylated amines, poly-alkyleneamines, poly-oxyalkyleneamines and poly-alkylphenoxyaminoalkanes. |
