US20130150269A1
University of Texas System
What is claimed is: 1 . A non-surfactant aqueous composition comprising a light co-solvent, a water-soluble polymer and an alkali agent. 2 . The non-surfactant aqueous composition of claim 1 , comprising a plurality of different light co-solvents. 3 . The non-surfactant aqueous composition of claim 1