Invention Grant
- Patent Title: Double-sided pressure-sensitive adhesive sheet and method for producing the same
- Patent Title (中): 双面粘合片及其制造方法
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Application No.: US12256896Application Date: 2008-10-23
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Publication No.: US09279069B2Publication Date: 2016-03-08
- Inventor: Akiko Takahashi , Mami Ikeya
- Applicant: Akiko Takahashi , Mami Ikeya
- Applicant Address: JP Osaka
- Assignee: NITTO DENKO CORPORATION
- Current Assignee: NITTO DENKO CORPORATION
- Current Assignee Address: JP Osaka
- Agency: Leydig, Voit & Mayer, Ltd.
- Priority: JP2007-279268 20071026
- Main IPC: B32B27/12
- IPC: B32B27/12 ; C09J7/04

Abstract:
Provided are a double-sided PSA sheet comprising a PSA layer formed by directly applying an aqueous dispersion-type PSA composition to a non-woven fabric substrate, wherein the layer has a highly smooth surface; and a method for producing the same. In this method, an aqueous dispersion-type PSA composition is applied to at least a first side of the non-woven fabric substrate and the composition is allowed to dry to form a PSA layer. A non-woven fabric of 15 μm to 70 μm in thickness, 0.3 to 0.6 g/cm3 in bulk density, and 0.7 sec to 2 sec in air resistance (Gurley) when measured for 8 layers the non-woven fabric substrate is used as the non-woven fabric substrate.
Public/Granted literature
- US20090111343A1 DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE SHEET AND METHOD FOR PRODUCING THE SAME Public/Granted day:2009-04-30
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