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.

Date of Patent:
Jun. 13, 2017

Filed:

Jan. 17, 2014
Applicant:

Unicharm Corporation, Shikokuchuo-shi, Ehime, JP;

Inventors:

Hiroki Goda, Kanonji, JP;

Shinichi Ishikawa, Kanonji, JP;

Ryota Kawamori, Kanonji, JP;

Kengo Ochi, Kanonji, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F 13/533 (2006.01); A61F 13/536 (2006.01); A61F 13/539 (2006.01); A61F 13/15 (2006.01); A61F 13/537 (2006.01); A61F 13/53 (2006.01); A61F 13/534 (2006.01);
U.S. Cl.
CPC ...
A61F 13/536 (2013.01); A61F 13/15699 (2013.01); A61F 13/533 (2013.01); A61F 13/539 (2013.01); A61F 13/53704 (2013.01); A61F 2013/5349 (2013.01); A61F 2013/530299 (2013.01); A61F 2013/530496 (2013.01); Y10T 156/10 (2015.01);
Abstract

The present invention addresses the problem of providing an absorbent article in which a bonding part for bonding a liquid-permeable layer to an absorbent core has been formed in a low-basis-weight region of the absorbent core and which has all of sufficient flexural rigidity of the bonding part, sufficient bonding strength of the bonding part, and sufficient liquid-absorbing properties. This problem is solved with an absorbent core which comprises a first region that has a given absorbent-material basis weight and second regions (regions) that have a lower absorbent-material basis weight than the first region, wherein the ratio of the basis weight of a highly absorbing polymer to the basis weight of the absorbent material in the second regions is regulated to 10/100 to 47/100, and compressed parts are formed inside the second regions.


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