Patent ID: 8236884

Claim:
A high-capacity superabsorbent polymer composition comprising a superabsorbent polymer comprising: a) from about 55% to about 99.9% by weight of polymerizable unsaturated acid group containing monomer, based on the superabsorbent polymer; and b) from about 0.001% to about 5% by weight of internal crosslinking agent based on the polymerizable unsaturated acid group containing monomer; wherein the superabsorbent polymer has a degree of neutralization of greater than about 25%; wherein elements a) and b) are polymerized and prepared into superabsorbent polymer particles and further comprising the following surface additives to form surface treated superabsorbent polymer particles i) from about 0.001% to about 5% by weight of surface crosslinking agent based on the superabsorbent polymer composition; ii) from about 0.01% to about 2% by weight of a water-insoluble inorganic metal compound, based on the superabsorbent polymer composition wherein said water-insoluble inorganic metal compound is selected from a calcium phosphate, titanium phosphate, aluminum phosphate, iron phosphate, titanium borate, aluminum borate, iron borate magnesium borate, manganese borate, or calcium borate; iii) from about 0.01% to about 0.5% cationic polymer based on the superabsorbent polymer composition; and iv) from about 0.01% to about 0.5% of a thermoplastic polymer that is selected from polyolefin, polyethylene, linear low density polyethylene, ethylene acrylic acid copolymer, styrene copolymers, ethylene alkyl methacrylate copolymer, polypropylene, maleated polypropylene, ethylene vinyl acetate copolymer, polyamide, polyester, blends thereof, or copolymers thereof.