Invention Grant
- Patent Title: Absorbent article containing a water-absorbent resin powder
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Application No.: US14368886Application Date: 2012-12-20
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Publication No.: US10052401B2Publication Date: 2018-08-21
- Inventor: Yoshihisa Ota , Motoko Nishida , Masatoshi Ikeuchi
- Applicant: LIVEDO CORPORATION
- Applicant Address: JP Shikokuchuo-shi
- Assignee: LIVEDO CORPORATION
- Current Assignee: LIVEDO CORPORATION
- Current Assignee Address: JP Shikokuchuo-shi
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2011-285292 20111227
- International Application: PCT/JP2012/008170 WO 20121220
- International Announcement: WO2013/099175 WO 20130704
- Main IPC: A61F13/15
- IPC: A61F13/15 ; A61F13/20 ; A61L15/60 ; A61L15/42 ; A61F13/532 ; A61L15/26

Abstract:
To provide an absorbent article that has a high absorption speed, is unlikely to cause a liquid to remain on a skin-contacting surface, has excellent dry feeling, and is unlikely to cause excreted body fluid to return. The present invention provides an absorbent article comprising an absorber composed of at least one absorbent layer, wherein a water-absorbent resin powder meeting the following requirements (a) to (d) is disposed in an uppermost layer of the absorber: (a) a bulk density: 0.45 g/ml to 0.62 g/ml; (b) an absorption speed by a vortex method: 20 seconds to 50 seconds; (c) a liquid-passing speed under load: 10 seconds or less; and (d) a moisture absorption blocking ratio: 5% or less.
Public/Granted literature
- US20140364824A1 ABSORBENT ARTICLE Public/Granted day:2014-12-11
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