| 摘要 |
A composition comprising at least one compound of the general formula <CHEM> wherein each Ar is independently an aromatic group having from 4 to about 30 carbon atoms and from 0 to 3 optional substituents selected from the group consisting of amino, hydroxy- or alkyl- polyoxyalkyl, nitro, aminoalkyl, carboxy or combinations of two or more of said optional substituents, each R is independently a hydrocarbyl group, R<1> is H or a hydrocarbyl group, R<2> and R<3> are each, independently, H or a hydrocarbyl group, R<4> is a monovalent terminating group, each m is independently 0 or an integer ranging from 1 to about 10, x ranges from 0 to about 8, and each Z is independently OH, lower alkoxy, (OR<5>)bOR<6> or O<-> wherein each R<5> is independently a divalent hydrocarbyl group, R<6> is H or hydrocarbyl and b is a number ranging from 1 to about 30 and c ranges from 1 to about 3, y is a number ranging from 1 to about 10 and wherein the sum m + c does not exceed the number of valences of the corresponding Ar available for substitution and at least one A is a group characterized by the formula <CHEM> wherein R<b>, R<c>, R<d> and R<e> are each independently H, hydroxyhydrocarbyl or hydrocarbyl groups, X is O, S or NR<a> wherein R<a> is H, hydrocarbyl, hydroxyhydrocarbyl, aminohydrocarbyl or a group of the formula <MATH> wherein each Y is a group of the formula <CHEM> or -R<5>O- each R<5> is a divalent hydrocarbyl group, each R<7> is H, alkoxyalkyl, hydroxyalkyl, a hydrocarbyl group, an aminohydrocarbyl group, or an N-alkoxyalkyl- or hydroxyalkyl- substituted aminohydrocarbyl group, a is 0 or a number ranging from 1 to about 100 and D is a group of the formula <CHEM> In one embodiment, (I) is present in fuel compositions. In another embodiment it is used in lubricating oil compositions. |
