Water-absorbing agent and production process therefor, and water-absorbent structure

A production process for a water-absorbing agent, which comprises the step of blending 100 parts by weight of water-absorbent resin particles (A) and 0.01 to 10 parts by weight of a cationic polymer compound (B) together,

• wherein the water-absorbent resin particles (A) exhibit an absorption capacity of not less than 20 g/g under a load of 4.9 kPa (AAP) and a gel layer liquid permeation rate of not more than 800 seconds under a load (FRUP), and
• wherein the cationic polymer compound (B) has a water solubility of 100 to 10 weight %.

A production process for a water-absorbing agent, which comprises the step of blending 100 parts by weight of water-absorbent resin particles (A) and 0.01 to 10 parts by weight of a cationic polymer compound (B) together,

• wherein the water-absorbent resin particles (A) exhibit an absorption capacity of not less than 20 g/g under a load of 4.9 kPa (AAP) and a saline flow conductivity of not less than 20 (10−7×cm3×s×g−1) (SFC), and
• wherein the cationic polymer compound (B) has a water solubility of 100 to 10 weight %.

A water-absorbing agent, which comprises water-absorbent resin particles (A) and a cationic polymer compound (B), wherein the cationic polymer compound (B) is substantially ionically bonded to the water-absorbent resin particles (A),

• with the water-absorbing agent being characterized by exhibiting a free swelling capacity of not less than 23 g/g (GV), an absorption capacity of not less than 20 g/g under a load of 4.9 kPa (AAP), and a saline flow conductivity of not less than 50 (10−7×cm3×s×g31 1) (SFC).

A water-absorbing agent, which comprises a polymer obtained by a process including the steps of polymerizing and then crosslinking a monomer including acrylic acid and/or a salt thereof,

• with the water-absorbing agent being characterized by exhibiting a free swelling capacity of not less than 23 g/g (GV), an absorption capacity of not less than 20 g/g under a load of 4.9 kPa (AAP), and a gel deformation of not more than 12.5 cm under a load (16 hrPT).

A water-absorbing agent, which comprises a polymer obtained by a process including the steps of polymerizing and then crosslinking a monomer including acrylic acid and/or a salt thereof,

• with the water-absorbing agent being characterized by exhibiting a free swelling capacity of not less than 23 g/g (GV), an absorption capacity of not less than 20 g/g under a load of 4.9 kPa (AAP), and a 16 hours' ball burst strength of not less than 80 gf (16 hrBBS).

A water-absorbing agent, which comprises a polymer obtained by a process including the steps of polymerizing and then crosslinking a monomer including acrylic acid and/or a salt thereof,

• with the water-absorbing agent being characterized by exhibiting a free swelling capacity of not less than 23 g/g (GV), a gel deformation of not more than 12.5 cm under a short-time load (0.5 hrPT), and a gel deformation deterioration of not more than 3.5 cm under a load with the passage of time (ΔPT).

A water-absorbing agent, which comprises a polymer obtained by a process including the steps of polymerizing and then crosslinking a monomer including acrylic acid and/or a salt thereof,

• with the water-absorbing agent being characterized by exhibiting a free swelling capacity of not less than 23 g/g (GV), a ball burst strength of not less than 80 gf (BBS), and a deterioration of ball burst strength of not more than 40% (DBBS).

A water-absorbent structure, which comprises the water-absorbing agent as