The present invention relates to a metal compound of calixarene not containing sulfur and dispersible in oil, which can be partially salified, or neutral, or basic or overbased, said calixarene having general formula (I) in which: a) R
1
, R
2
, R
3
and R
4
are independently selected from hydrogen, or a group containing carbon and hydrogen, or a group containing in addition to carbon and hydrogen also heteroatoms, provided that said heteroatoms are not sulfur; b) one of the two substituents R
5
and R
6
is hydrogen, while the other may be selected from hydrogen, or a linear or branched alkyl with a number of carbon atoms between 1 and 6, preferably methyl, ethyl, 1-propyl, 2-propyl, n-butyl, sec-butyl, more preferably methyl or ethyl; c) n is the number of units of the calixarene ring and is comprised in the range between 4 and 16, preferably between 5 and 12; said calixarene being characterized in that in at least one of the n units of the calixarene ring, at least one of the substituents R
1
, R
2
, R
3
and R
4
contains at least one acid group of carboxylic type available for the reaction with a metal base, with the proviso that said acid group of carboxylic type is not contained in a unit of the calixarene ring derived from salicylic acid.
本发明涉及一种不含
硫且可在油中分散的杯
芳烃金属化合物,可以部分盐化,或中性,或碱性或过基化,所述杯
芳烃具有通式(I),其中:a) R1、R2、R3和R4独立地选自氢,或含碳和氢的基团,或除碳和氢外还含有杂原子的基团,前提是所述杂原子不是
硫;b) 两个取代基R5和R6中的一个是氢,而另一个可以选自氢,或具有1到6个碳原子的直链或支链烷基,优选是甲基、乙基、1-丙基、2-丙基、正丁基、异丁基,更优选是甲基或乙基;c) n是杯
芳烃环的单位数,范围在4到16之间,优选在5到12之间;所述杯
芳烃的特征在于,在杯
芳烃环的至少一个n个单位中,至少一个取代基R1、R2、R3和R4中含有至少一个羧基的酸性羧基,可用于与
金属碱发生反应,但前提是所述羧基不含在源自
水杨酸的杯
芳烃环的单位中。