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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.:

US 9603756 B1

PDFFull Text
Date of Patent:
Mar. 28, 2017

Filed:

Nov. 04, 2014

Composite material for absorbent article, and method for manufacturing thereof

Applicant:

Unicharm Corporation, Shikokuchuo-shi, Ehime, JP;

Inventors:

Akihiro Kimura, Kanonji, JP;

Hiroyuki Muto, Toyohashi, JP;

Norio Hakiri, Toyohashi, JP;

Hideyo Yoshikawa, Toyohashi, JP;

Atsunori Matsuda, Toyohashi, JP;

Go Kawamura, Toyohashi, JP;

Assignee:

UNICHARM CORPORATION, Ehime, JP;

Attorney:

Hauptman Ham, LLP

Primary Examiner:

Edward Johnson

Int. Cl.
CPC ...
B01J 20/26 (2006.01); A61F 13/53 (2006.01); D06M 15/263 (2006.01); A61F 13/00 (2006.01); D06M 15/356 (2006.01); B32B 5/02 (2006.01); B32B 7/02 (2006.01); B32B 27/12 (2006.01); B01J 20/28 (2006.01); B01J 20/32 (2006.01); C08J 3/12 (2006.01); D06M 15/21 (2006.01); D06M 101/32 (2006.01);
U.S. Cl.
CPC ...
A61F 13/53 (2013.01); A61F 13/00008 (2013.01); B01J 20/261 (2013.01); B01J 20/262 (2013.01); B01J 20/28023 (2013.01); B01J 20/3231 (2013.01); B01J 20/3293 (2013.01); B32B 5/022 (2013.01); B32B 7/02 (2013.01); B32B 27/12 (2013.01); C08J 3/126 (2013.01); D06M 15/21 (2013.01); D06M 15/263 (2013.01); D06M 15/3562 (2013.01); A61F 2013/530131 (2013.01); A61F 2013/530481 (2013.01); B32B 2262/02 (2013.01); B32B 2307/726 (2013.01); B32B 2555/02 (2013.01); C08J 2300/14 (2013.01); C08J 2433/02 (2013.01); C08J 2439/00 (2013.01); D06M 2101/32 (2013.01);
Abstract

A composite material for an absorbent article and a method for manufacturing said composite material, said composite material being obtained by causing an absorbent material to adhere by electrostatic interaction to a substrate material, the surface of the absorbent material being positively or negatively charged in a prescribed solvent selected from among a nonpolar organic solvent, a polar organic solvent, and a water/polar organic solvent mixture; and the surface of the composite material being charged to an electrical charge opposite to that of the surface of the substrate material, in the prescribed solvent. The substrate material has a fiber substrate or a plastic substrate, and a polyelectrolyte layer provided on the surface layer; and/or the absorbent material has an absorbent-particle substrate or an absorbent fiber substrate, and a polyelectrolyte layer provided on the surface layer.

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