FIELD: chemistry.
SUBSTANCE: invention concerns water-absorbing resin and method for obtaining same. The proposed composition is based on water-absorbing resin and includes water-absorbing resin powder with cross-linked structure containing water-soluble component obtained by acrylic acid and/or its salt polymerisation, with the resin cross-linked closer to its surface and its content in composition reaching 70 mass % or more, and component based on polyvalent metal with content at the water-absorbing resin particle surface defined by its extraction rate, which comprises 5.0 to 100 mass %. Also, the invention claims variants for method of obtaining the said composition, absorber based thereon, and absorption device including the said absorber.
EFFECT: obtaining a composition based on water absorbing resin free of conglomerated particles even at high humidity and having improved absorption properties.
15 cl, 2 dwg, 7 tbl, 17 ex
