The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 12, 2006
Filed:
Nov. 07, 2002
Hiroki Ishikawa, Kagawa-ken, JP;
Akiyoshi Kinoshita, Kagawa-ken, JP;
Toru Oba, Kagawa-ken, JP;
Yasuhiko Kenmochi, Kagawa-ken, JP;
Hiroki Ishikawa, Kagawa-ken, JP;
Akiyoshi Kinoshita, Kagawa-ken, JP;
Toru Oba, Kagawa-ken, JP;
Yasuhiko Kenmochi, Kagawa-ken, JP;
Uni-Charm Corporation, Ehime-ken, JP;
Abstract
A disposable diaper has an absorbent core. The core contains therein hydrophilic fibers of 30–70 wt % and super-absorbent polymer particles of 70–30 wt %. Of the super-absorbent particles, first super-absorbent polymer particles having a relatively long liquid-absorbing duration lying in a middle zone of the core as viewed in a transverse direction as well as in a thickness direction of the core to form a polymer phase and second super-absorbent polymer particles having a relatively short liquid-absorbing duration lying in the core above, below and laterally outside the polymer phase to form a mixture phase containing therein the hydrophilic fibers mixed therewith.