The composition of claim 11 where RE has the formula: where R13, R14, R15, R16, R17 and R18 are each independently selected from the group of hydrogen and monovalent hydrocarbon radicals having from one to sixty carbon atoms, Qm is a di- or trivalent hydrocarbon radical having from one to sixty carbon atoms, Qn is a divalent hydrocarbon radical having from one to sixty carbon atoms with the subscr