Patent ID: 8318306

Claim:
An absorbent composition comprising: a. a superabsorbent polymer composition comprising poly (acrylic acid) wherein said superabsorbent polymer composition has a degree of neutralization of less than about 70 molar per cent and a pH of less than about 6 wherein the superabsorbent polymer composition is a water-swellable, water-insoluble material and having a centrifuge retention capacity of at least about 25g/g; b. a first triggering composition for deswelling a swollen superabsorbent polymer composition which has absorbed liquid to form a deswelled superabsorbent polymer composition wherein the first triggering composition comprises a first water-soluble chemical comprising cations X having an ionized valence of two or more; and c. a second triggering composition for reswelling the deswelled superabsorbent polymer composition wherein the second triggering composition comprises a second water-soluble chemical comprising anions Y; wherein the first water-soluble chemical and the second water-soluble chemical are encapsulated with a coating selected from a polymeric coating material which is selected from poly(meth)acrylate copolymers, polyacrylate copolymers, ethyl cellulose, sodium carboxymethylcellulose, cellulose acetate, polyethylene glycol, maleated polypropylene, polyolefin copolymers, or combinations thereof; and wherein the cations X of the first water-soluble chemical are capable of complexing with the anionic functional groups of the superabsorbent polymer composition; and the anions Y of the second water-soluble chemical are capable of complexing with the cations X to form a salt having a solubility product constant Ksp<10 -5 .