| abstract |
Metal salts of the general formula (I) in which M represents one or more metal ions, y is the total valence of all M and A represents one or more anion-containing groups having a total of about y individual anion moieties and each anion-containing group is a group of formula (II) wherein T is selected from the group consisting of (V) or (VI) wherein each R5 is independently selected from O- and OR6, wherein R6 is H or alkyl and each t is independently 0 or 1, wherein each Ar is independently an aromatic group of 4 to about 30 carbon atoms having 0 to 3 optional substituents selected from the group consisting of polyalkoxyalkyl, lower alkoxy, nitro, halo or combinations of two or more of said optional substituents, or an analog of such an aromatic group, wherein T is defined above, each R is independently alkyl, alkenyl or aryl having at least 8 atoms of carbon, R1 is H or a hydrocarbyl group, R2 and R3 are each independently H or a hydrocarbyl group, each m is independently an integer ranging from 1 to about 10, x is from 0 to about 8, and each Z is independently OH, (OR4)bOH or O- wherein each R4 is independently a divalent hydrocarbyl group and b is a number from 1 to about 30 and c is from 0 to about 3 provided that when t of formula (II) = 0, or when T is the formula (V), c is not equal to O provided that the sum of m, c and t does not exceed the unsatisfied valences of the corresponding Ar. Additive concentrates for preparing lubricants and fuels other than lubricant and fuel compositions for two-stroke engines, as well as lubricating compositions and fuel compositions other than those intended for two-stroke engines are also described. |