Title:
POROUS SHEET FOR SUCTION APPLICATIONS AND REPLACEABLE SURFACE LAYER USED THEREIN
Document Type and Number:
WIPO Patent Application WO/2013/121796
Kind Code:
A1
Abstract:
Provided is a multilayer porous sheet for suction applications that has a non-conventional structure and is located on the suction surface of a suction unit, thereby preventing contact between said suction surface and an object to which the suction unit is attached. This porous sheet contains an air-permeable base layer and a surface layer on top of said base layer. The surface layer comprises a porous body comprising resin microparticles bound to each other, the surface roughness (Ra) of the principal surface of the surface layer facing away from the base layer is less than or equal to 1.0 µm, and the base layer and the surface layer are joined together by an air-permeable pressure-sensitive-adhesive layer interposed therebetween. The base layer and/or the surface layer comprises, for example, ultra-high-molecular-weight polyethylene (UHMWPE).
Inventors:
TSUKAMOTO KATSUKI (JP)
TACHIBANA TOSHIMITSU (JP)
TACHIBANA TOSHIMITSU (JP)
Application Number:
PCT/JP2013/000848
Publication Date:
August 22, 2013
Filing Date:
February 15, 2013
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
B32B5/30; B32B27/32; C09J201/00
Foreign References:
| JP2006026981A | 2006-02-02 | |||
| JP2008036885A | 2008-02-21 | |||
| JP2007308666A | 2007-11-29 | |||
| JP2003340666A | 2003-12-02 | |||
| JP2001354796A | 2001-12-25 | |||
| JP2001354797A | 2001-12-25 | |||
| JPS63261249A | 1988-10-27 | |||
| JPH04102712A | 1992-04-03 |
Attorney, Agent or Firm:
KAMADA, KOICHI (JP)
Koichi Kamata (JP)
Koichi Kamata (JP)
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Claims:
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