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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 9308291 B1

PDFFull Text
Date of Patent:
Apr. 12, 2016

Filed:

Oct. 29, 2013

Medical pressure-sensitive adhesive sheet and method for producing the same

Applicant:

Piac Co., Ltd., Shiga, JP;

Inventors:

Keiji Oka, Shiga, JP;

Junji Fukushima, Shiga, JP;

Assignee:

PIAC CO., LTD., Shiga, JP;

Attorney:

Fitch, Even, Tabin & Flannery LLP

Primary Examiner:

Tahseen N Khan

Int. Cl.
CPC ...
A61L 15/58 (2006.01); B32B 37/15 (2006.01); A61L 15/42 (2006.01); A61F 13/02 (2006.01); A61L 15/24 (2006.01); C08L 35/04 (2006.01); B32B 27/00 (2006.01); B32B 37/12 (2006.01); B32B 5/02 (2006.01); B32B 7/06 (2006.01); B32B 7/12 (2006.01); B32B 27/12 (2006.01); B32B 27/40 (2006.01); B32B 38/00 (2006.01); C09J 133/14 (2006.01); C08L 23/10 (2006.01);
U.S. Cl.
CPC ...
A61L 15/58 (2013.01); A61F 13/0246 (2013.01); A61F 13/0276 (2013.01); A61L 15/24 (2013.01); A61L 15/42 (2013.01); B32B 5/022 (2013.01); B32B 7/06 (2013.01); B32B 7/12 (2013.01); B32B 27/00 (2013.01); B32B 27/12 (2013.01); B32B 27/40 (2013.01); B32B 37/12 (2013.01); B32B 37/15 (2013.01); C08L 35/04 (2013.01); B32B 38/0004 (2013.01); B32B 2037/1253 (2013.01); B32B 2274/00 (2013.01); B32B 2307/726 (2013.01); B32B 2307/748 (2013.01); B32B 2375/00 (2013.01); B32B 2535/00 (2013.01); B32B 2556/00 (2013.01); C08L 23/10 (2013.01); C09J 133/14 (2013.01); Y10T 156/10 (2015.01); Y10T 428/24959 (2015.01);
Abstract

A medical pressure-sensitive adhesive sheet includes a urethane substrate, an interlayer adhesive layer, an olefin nonwoven fabric, and a pressure-sensitive adhesive layer for pasting in order and has a moisture permeability amount of 2000 g/(m·24 hours) or more, or the like. In the medical pressure-sensitive adhesive sheet, a thickness of the urethane substrate is a value within the range of from 1 to 10 μm, a thickness of the interlayer adhesive layer is a value within the range of from 5 to 30 μm, the olefin nonwoven fabric is constituted with a polypropylene-based thermoplastic elastomer and has a maximum point elongation percentage of a value of 200% or more in the longitudinal direction and the transverse direction, respectively, and a thickness of the pressure-sensitive adhesive layer for pasting is a value within the range of from 5 to 45 μm.

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