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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 9174411 B1

PDFFull Text
Date of Patent:
Nov. 03, 2015

Filed:

Jul. 07, 2010

Laminated sheet and process for producing the same

Applicants:

Toru Ochiai, Okayama, JP;

Shinichi Shigeki, Okayama, JP;

Sumito Kiyooka, Okayama, JP;

Ikuhisa Shiraishi, Saijo, JP;

Nobuo Araya, Chiyoda-ku, JP;

Inventors:

Toru Ochiai, Okayama, JP;

Shinichi Shigeki, Okayama, JP;

Sumito Kiyooka, Okayama, JP;

Ikuhisa Shiraishi, Saijo, JP;

Nobuo Araya, Chiyoda-ku, JP;

Assignee:

KURARAYKURAFLEX CO., LTD., Okayama-shi, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Gina Justice

Int. Cl.
CPC ...
B32B 29/00 (2006.01); B32B 37/00 (2006.01); B32B 5/26 (2006.01); D04H 1/4374 (2012.01); D04H 1/4382 (2012.01); D04H 1/492 (2012.01); D04H 1/498 (2012.01); A61Q 19/00 (2006.01); A61K 8/02 (2006.01); B32B 5/02 (2006.01); B32B 5/08 (2006.01);
U.S. Cl.
CPC ...
B32B 5/26 (2013.01); A61K 8/0208 (2013.01); A61Q 19/00 (2013.01); B32B 5/022 (2013.01); B32B 5/08 (2013.01); D04H 1/4374 (2013.01); D04H 1/4382 (2013.01); D04H 1/492 (2013.01); D04H 1/498 (2013.01); B32B 2260/021 (2013.01); B32B 2262/0223 (2013.01); B32B 2262/0276 (2013.01); B32B 2262/0284 (2013.01); B32B 2262/0292 (2013.01); B32B 2262/04 (2013.01); B32B 2262/062 (2013.01); B32B 2307/726 (2013.01); B32B 2307/728 (2013.01); Y10T 442/608 (2015.04);
Abstract

A laminated sheet is produced by forming an adhesion layer permeable to a liquid component and contactable with a skin on at least one side of a liquid-retention layer comprising a nonwoven structural member and having an ability to absorb the liquid component. The adhesion layer comprises a nonwoven structural member comprising a fiber having a number-average fiber diameter of not more than 10 μm, and the thickness ratio of the adhesion layer relative to the liquid-retention layer is 1/4 to 1/100 as a ratio of the adhesion layer/the liquid-retention layer. The fiber of the nonwoven structural member of the adhesion layer may have a standard deviation of fiber diameter of not more than 5. The nonwoven structural member of the liquid-retention layer may comprise a fiber having a fiber diameter larger than that of the fiber of the adhesion layer. The laminated sheet has a liquid retentivity and a liquid releasability in a well-balanced manner, and has an excellent adhesion and an excellent fit to the skin in the state where the sheet is impregnated with a liquid component.

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