公开(公告)号：JPH09302138A

公开(公告)日：1997-11-25

申请号：JP11469696

申请日：1996-05-09

Applicant: KAO CORP

Inventor： HOSOKAWA YASUTOKU ,  IGARASHI TADASHI ,  KOUTACHI TAKASHI

IPC: A61L15/60 ,  A61F13/53 ,  C08K3/22 ,  C08L101/00 ,  C08L101/14

Abstract: PROBLEM TO BE SOLVED: To obtain a highly water-absorptive resin composition that contains a highly water-absorptive resin and specific titanium dioxide, has excellent water absorptivity, does not decompose/deteriorate even when kept in hydrous condition by absorbing a hydrous liquid, urea, or the like, and is useful for paper diapers, etc. SOLUTION: This highly water-absorptive resin composition comprises (A) 100 pts.wt. of a highly water-absorptive resin, and (B) 0.01-10 pts.wt. of titanium dioxide having crystal form of anatase type, average particle size of 0.1μm or less, preferably 0.03μm or less, and specific surface area of 50m /g or more, preferably 200m /g or more, when determined by Brunauer-Emette-Teller's method. Furthermore it is preferable for this resin composition to maintain water retention of 35g/g or more when swollen with physiological saline water for 30min and then dehydrated by centrifuging.