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公开(公告)号：EP1013732B1
公开(公告)日：2003-10-08
申请号：EP99125653.8
申请日：1999-12-22
发明人： Takahira, Hitoshi, Nitto Denko Corporation , Yamamoto, Hiroshi, Nitto Denko Corporation , Nishiyama, Naoyuki, Nitto Denko Corporation , Ohura, Masahiro, Nitto Denko Corporation
CPC分类号： B32B27/08 , B32B7/12 , B32B27/32 , B32B2250/40 , B32B2307/30 , B32B2307/72 , B32B2323/04 , B32B2323/046 , B32B2323/10 , B32B2429/02 , C09J7/40 , C09J2423/005 , Y10T428/14 , Y10T428/1471 , Y10T428/1476 , Y10T428/1481 , Y10T428/2839 , Y10T428/2848
摘要： Provided is a release liner formed of a plastic film having a laminated structure of at least three layers, described specifically, as two surface layers, (A) a release functioning layer composed of a polyethylene film having a density of 0.88 to 0.92 g/cm and a melt index not greater than 10 g/10 minutes and (B) a surface film layer having a thermal linear expansion coefficient similar to that of said release functioning layer and, as an intermediate layer, (C) a reinforcement layer having a melting point not less than 120 DEG C. By forming a pressure-sensitive adhesive layer on the surface of the release functioning layer (A) of the above-described release liner, a pressure-sensitive adhesive sheet can be obtained. The release liner exhibits good release function without using a silicone-base releasing agent and has heat resistance sufficient for not causing deformation such as curl even when heat is applied to the liner.
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公开(公告)号：EP1013732A2
公开(公告)日：2000-06-28
申请号：EP99125653.8
申请日：1999-12-22
发明人： Takahiro, Hitoshi, Nitto Denko Corporation , Yamamoto, Hiroshi, Nitto Denko Corporation , Nishiyama, Naoyuki, Nitto Denko Corporation , Ohura, Masahiro, Nitto Denko Corporation
CPC分类号： B32B27/08 , B32B7/12 , B32B27/32 , B32B2250/40 , B32B2307/30 , B32B2307/72 , B32B2323/04 , B32B2323/046 , B32B2323/10 , B32B2429/02 , C09J7/40 , C09J2423/005 , Y10T428/14 , Y10T428/1471 , Y10T428/1476 , Y10T428/1481 , Y10T428/2839 , Y10T428/2848
摘要： Provided is a release liner formed of a plastic film having a laminated structure of at least three layers, described specifically, as two surface layers, (A) a release functioning layer composed of a polyethylene film having a density of 0.88 to 0.92 g/cm 3 and a melt index not greater than 10 g/10 minutes and (B) a surface film layer having a thermal linear expansion coefficient similar to that of said release functioning layer and, as an intermediate layer, (C) a reinforcement layer having a melting point not less than 120°C. By forming a pressure-sensitive adhesive layer on the surface of the release functioning layer (A) of the above-described release liner, a pressure-sensitive adhesive sheet can be obtained. The release liner exhibits good release function without using a silicone-base releasing agent and has heat resistance sufficient for not causing deformation such as curl even when heat is applied to the liner.
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