Variably light diffusing material - for windows contg a non ionic surfactant soln

摘要

Material comprises (a) at least one translucid ro transparent support (pref. two sheets of glass in a sealed frame) and (b) at least one non-ionic surfactant in a solvent the cloud point being 0-100 degrees C. The system may be used in construction, publicity, scientific materials etc. where the clarity is controlled by the ambient temp.