发明授权
- 专利标题: Heat-peelable pressure-sensitive adhesive sheet
- 专利标题(中): 热剥离性粘合片
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申请号: US09853787申请日: 2001-05-14
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公开(公告)号: US06998175B2公开(公告)日: 2006-02-14
- 发明人: Akihisa Murata , Toshiyuki Oshima , Yukio Arimitsu , Kazuyuki Kiuchi
- 申请人: Akihisa Murata , Toshiyuki Oshima , Yukio Arimitsu , Kazuyuki Kiuchi
- 申请人地址: JP Osaka
- 专利权人: Nitto Denko Corporation
- 当前专利权人: Nitto Denko Corporation
- 当前专利权人地址: JP Osaka
- 代理机构: Sughrue Mion, PLLC
- 优先权: JPP.2000-142513 20000515
- 主分类号: C09J7/02
- IPC分类号: C09J7/02 ; B32B27/00
摘要:
A heat-peelable pressure-sensitive adhesive sheet which, even when used for temporarily fixing electronic parts having poor resistance to static electricity, such as magnetic heads, is effective in preventing the yield of such electronic parts from being reduced by electrostatic breakage, while ensuring its functions of adhesiveness before heating and peelability after heating. The heat-peelable pressure-sensitive adhesive sheet comprises a substrate and formed on at least one side thereof a heat-expandable pressure-sensitive adhesive layer containing heat-expandable microspheres, wherein the heat-expandable pressure-sensitive adhesive layer has a surface resistivity of 1012 Ω/□ or lower. In this heat-peelable pressure-sensitive adhesive sheet, the heat-expandable pressure-sensitive adhesive layer before heating may have a center line average surface roughness of 2 μm or less and a maximum surface roughness of 5 μm or less. The adhesive sheet may have a rubber-like organic elastic layer interposed between the substrate and the heat-expandable pressure-sensitive adhesive layer.
公开/授权文献
- US20010055678A1 Heat-peelable pressure-sensitive adhesive sheet 公开/授权日:2001-12-27