| 摘要 |
PROBLEM TO BE SOLVED: To provide an absorptive resin particle which allows an absorptive article, to which the absorptive resin particle is applied, to exhibit excellent absorbing properties while showing a specific absorption rate pattern. SOLUTION: The absorptive resin particle contains a cross-linked polymer (A1) containing a water-soluble vinyl monomer (a1) and/or a hydrolyzable vinyl monomer (a2) and a cross-linking agent (b) as essential constituent units. The cross-linked polymer (A1) shows 14-19 mL/g amount (M1) absorbed after one minute, 26-33 mL/g amount (M2) absorbed after two minutes, 42-50 mL/g amount (M3) absorbed after five minutes and 52-59 mL/g amount (M4) absorbed after ten minutes when measured by a DW (Demand Wettability) method. COPYRIGHT: (C)2010,JPO&INPIT |
