Patent ID: 6268320
Filing Date: 2001-07-31
Classification: C10M

Abstract:
A composition comprising at least one metal salt of sulphur-containing calixarene represented by formula (I) ##STR6##wherein in formula (I): Y is a divalent bridging group, at least one of said bridging groups being a sulphur atom; R.sup.3 is hydrogen, a hydrocarbyl or a hetero-substituted hydrocarbyl group; either R.sup.1 is hydroxyl and R.sup.2 and R.sup.4 are independently either hydrogen, hydrocarbyl or hetero-substituted hydrocarbyl, or R.sup.2 and R.sup.4 are hydroxyl and R.sup.1 is either hydrogen, hydrocarbyl or hetero-substituted hydrocarbyl; and n is a number having a value of at least 4.