METHOD OF USING A DEFOAMER

摘要

A method for using a defoaming formulation useful as an antifoaming agent, a foam controlling agent, or a defoaming agent. The method comprises adding the defoaming formulation that comprises one or more alkoxylates species to a system wherein the one or more alkoxylate species is characterized as Acc-[OX)I]n, wherein Acc is an acceptor having a functionality of n ranging between 1 and about 100. (Ox)I are oxide blacks, each oxide block having a composition comprising from 1 to 150,000 units of oxide species selected from ethylene oxide, propylene oxide, bytylene oxide or combinations thereof and I ranges between 1 and about 10. The composition of adjacent oxide blocks is different and the average molecular weight of the one or more alkoxylate species is greater than about 2500 gmole<-1>.