Patent ID: 8686216

Claim:
A water-absorbing particulate composition comprising (a) water-absorbing polymer particulate structure wherein the water-absorbing polymer comprises partly neutralized, crosslinked sodium polyacrylate comprising from 0.01 to 2.5 wt % of one or more crosslinking agents based on the weight of the water-absorbent polymer wherein the sodium polyacrylate is neutralized to from 50 to 60 mol %, (b) a surface crosslinking agent wherein the water-absorbing polymer particulate structures have an inner region and an outer region surrounding the inner region, the outer region having a higher degree of crosslinking than the inner region due to the surface crosslinking agent, (c) 1 wt % of zinc salicylate in the form of a powder and (d) a binder to attach and immobilize the zinc salicylate to the surface of the water-absorbing particulate composition wherein the binder is selected from thermoplastic hot melt adhesives, hydrophilic water-soluble polymer or water, and wherein the water-absorbing particulate composition have an average particle size according to ERT-420.2.02 of from 150 Î¼m to 600 Î¼m and the water-absorbing particulate composition comprises at least 75 wt % of the particles, based on the total weight of the water-absorbing particulate composition, have a particle size in the range of 300 to 600 Î¼m and wherein the water-absorbing particulate composition has (Î²1) a retention determined according to ERT 441.2-02 of from 25 g/g to 50 g/g; and (Î²2) an absorption (determined for the entire particle size fraction in the case of particles) against a pressure of 0.7 psi (50 g/cm 2 ) to ERT 442.2-02 of at least 15 g/g; wherein the water-absorbing particulate composition has an odor-binding effect of delay of release of ammonia of at least 17 hours and a surface tension of at least 60 mN/m.