The impregnated compositions include lathering surfactants and water, and a water-binding agent resulting in a composition having a water activity...http://www.google.com/patents/US6992054?utm_source=gb-gplus-sharePatent US6992054 - Cleaning composition impregnated into a substrate including lathering surfactants and water, and a water-binding agent such as a polyol or an inorganic salt.Advanced P