Polyoxyalkylene fluoroalkyltrimellitates

A compound of the formula:

• ##STR31## wherein:
• a. the ring is 1, 3, 4 tri-substituted,
• b. Z is O, Z.sup.1 is selected from O or NR, and Z.sup.2 is selected from O, S or NR where R is H or an alkyl of 1-4 carbon atoms, ##STR32## d. R.sup.1 and R.sup.2 are moieties independently selected from hydrogen or an alkyl having 1 to 4 carbon atoms,
• e. m and p are independent integers from 0 to 30 describing repeating units of polyoxyalkykene groups that form a chain with at least one polyoxyalkylene chain of at least three repeating units being present.
• f. R.sup.1 and R.sup.2 are one or more of said moieties within the repeating units m and p,
• g. R.sub.f is selected from the group consisting of a linear or branched perfluoroalkyl, a linear or branched monochloroperfluoroalkyl or a linear or branched perfluoroisoalkoxyalkyl wherein each member of the group has 3 to 20 carbon atoms,
• h. r is an integer from 1 to 10,
• i. A is a linking group selected from the group consisting of the acyl segment of alkanoic or mono or dicyclic aromatic polycarboxylic acids, alkanoic or mono or dicyclic aromatic anhydrides or alkanoic or mono or dicyclic carbomates, linear alkylene of 2 to 12 carbon atoms or a cyclic alkylene of 5-8 carbon atoms or a branched alkylene of 3-12 carbon atoms, and
• j. R.sup.3 is selected from H or an alkyl of 1 to 20 carbon atoms.