- 专利标题: THERMALLY REMOVABLE PRESSURE-SENSITIVE ADHESIVE SHEET
- 专利标题(中): 热释电压敏粘胶片
-
申请号: US13502289申请日: 2010-10-20
-
公开(公告)号: US20120208015A1公开(公告)日: 2012-08-16
- 发明人: Hitoshi Takahira , Satomi Yoshie
- 申请人: Hitoshi Takahira , Satomi Yoshie
- 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
- 优先权: JP2009-241721 20091020
- 国际申请: PCT/JP2010/068457 WO 20101020
- 主分类号: C09J167/04
- IPC分类号: C09J167/04
摘要:
A thermally removable pressure-sensitive adhesive sheet includes a substrate and a pressure-sensitive adhesive layer that is provided on at least one side of the substrate and made from a polyester-based pressure-sensitive adhesive composition containing a polyester including at least a lactic acid unit, a dibasic acid unit, and a glycol unit, a foaming agent, and a crosslinking agent. The dibasic acid unit includes a dimer acid, the polyester has a weight average molecular weight of 20,000 to 200,000 and a glass transition temperature of −70 to −20° C. as measured using a differential scanning calorimeter at a temperature rise rate of 20° C./minute, and the polyester has a hydroxyl value of 1 to 60 mgKOH/g.
公开/授权文献
- US08999503B2 Thermally removable pressure-sensitive adhesive sheet 公开/授权日:2015-04-07