compound used during synthesis which acts as a nucleus for the attachment of the ethylene oxide and propylene oxide examples of initiators include ethylene glycol propylene glycol and ethylene diamine according to one embodiment of the invention the formulations of the invention include a solvent which aids the ethylene oxide propylene oxide copolymer to enter the aqueous phase preferred solvents include water soluble solvents such as glycol ethers glycols and alcohols more preferably the solvents of the invention are glycols and glycol ethers most preferably the solvents of the invention are glycols according to one embodiment of the invention the solvent is a glycol ether and is selected from the group consisting of diethylene glycol monobutyl ether ethylene glycol monobutyl ether propylene glycol monobutyl ether diethylene glycol monoethyl ether ethylene glycol monoethyl ether diethylene glycol monohexyl ether propoxy propanol ethylene glycol monohexyl ether diethylene glycol monomethyl ether propylene glycol methyl ether dipropylene glycol methyl ether and tripropylene glycol methyl ether in a more preferred embodiment the solvent is a glycol and is selected from the group consisting of propylene glycol ethylene glycol and diethylene glycol preferred alcohol solvents include benzyl alcohol ethanol methanol and propanol other preferred solvents of the invention are n methyl pyrolidone tetrahydrofuran tetrahydrofurfuryl alcohol and furfuryl alcohol the solvents of the invention are included in the.