Patent Number: 8,720,677

Title: Bags partially filled with stimuli-responsive highly absorbent superabsorbent polymers for water management and replacement of dams and canals

Abstract: Stimuli-responsive highly absorbent superabsorbent polymers (SAPs) are used to harness water to augment water supply and solve water crisis. Rain water, dew or sea water is harnessed in fabric-based sachets or bags partially filled with the polymers. The hydrated polymers are used to store water in warehouses for an extended period of time and the invention may obviate the need to construct controversial huge dams and canals or drill wells. The stored water in superabsorbent polymers is released at the point of use by any stimulus which may be light-induced, electrical, thermal or chemical treatment. SAPs with 2000 g/g of absorbency can yield 99.95% pure water in solid/gel form. An ultra SAP with absorbency of 10,000 g/g of the polymer could hold 10 billion cum. of water in one million tonnes of the polymer. This is more than the capacity of a typical large dam over a river.

Inventors: Savla; Manilal J. (Manalapan, NJ)


International Classification: B65D 85/72 (20060101); B65D 88/78 (20060101)

Expiration Date: 5/13/12018