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公开(公告)号：EP3029121A2
公开(公告)日：2016-06-08
申请号：EP15197435.9
申请日：2015-12-02
CPC分类号： C09J7/0207 , C09J7/22 , C09J7/38 , C09J167/02 , C09J2201/622 , C09J2203/318 , C09J2467/00 , C09J2467/006 , C09J2471/00 , C09J2475/00 , G02F2202/28
摘要： A surface protective pressure-sensitive adhesive sheet being less staining, less likely to trap air bubbles, and attachable by hand and having good wetting ability on an adherend and having an appropriate level of adherability and light peelability is provided, which includes a pressure-sensitive adhesive layer obtained by crosslinking a polymer-containing pressure-sensitive adhesive composition, wherein the pressure-sensitive adhesive layer has a surface that has a hardness of 0.1 MPa or more and a load curve with a minimum load of -0.3 µN or less as measured by nanoindentation, and which has a residual adhesive strength of 50 % or more, wherein the residual adhesive strength is calculated from the formula: residual adhesive strength (%) = 100 x [(adhesive strength B)/(adhesive strength A)], wherein adhesive strength A is the adhesive strength measured by a process including bonding a standard pressure-sensitive adhesive tape to the surface of an adherend and then peeling off the pressure-sensitive adhesive tape from the adherend surface, and adhesive strength B is the adhesive strength measured by a process including bonding the surface of the pressure-sensitive adhesive layer of the protective pressure-sensitive adhesive sheet to the surface of an adherend, then peeling off the protective pressure-sensitive adhesive sheet from the adherend surface, further bonding a standard pressure-sensitive adhesive tape to the adherend surface from which the protective pressure-sensitive adhesive sheet has been peeled off, and then peeling off the pressure-sensitive adhesive tape from the adherend surface.
摘要翻译： 本发明提供一种表面保护用粘合片，其着色少，不易产生气泡，可手工贴合，对被粘物具有良好的润湿性，并且具有适度的粘合性和轻度剥离性，其包括压敏 通过交联含聚合物的压敏粘合剂组合物而获得的粘合剂层，其中所述压敏粘合剂层具有硬度为0.1MPa以上的表面和具有-0.3μN以下的最小负荷的载荷曲线 （粘合力B）/（粘合力A）]计算出残留粘合力，残留粘合力为50％以上，残留粘合力通过纳米压痕法测定， 其中粘合强度A是通过包括将标准压敏胶粘带粘合到被粘物表面的方法测量的粘合强度，然后剥离 并且粘合强度B是通过包括将保护性压敏胶粘片的压敏胶粘剂层的表面粘合至被粘物表面的工艺测量的粘合强度，然后剥离 将保护用压敏粘合片从被粘物表面剥离，进一步将标准压敏粘合带粘合到剥离了保护压敏粘合片的被粘物表面上，然后剥离压敏粘合带 从被粘物表面。
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公开(公告)号：EP3375833A1
公开(公告)日：2018-09-19
申请号：EP16864069.6
申请日：2016-10-31
发明人： YOSHIDA, Akiko , OKADA, Kenichi , AKAZAWA, Koji
IPC分类号： C09J5/04 , C09J7/00 , C09J11/06 , C09J163/00
摘要： An adhesion method including: a step (1), disposing a stickable-curable adhesive layer on a first adherend; a step (2), disposing a curing agent layer on a second adherend, the curing agent layer being able to cure the stickable-curable adhesive layer by contacting and reacting with the stickable-curable adhesive layer; and a step (3), bringing the stickable-curable adhesive layer into contact with the curing agent layer so that they are sandwiched by the first adherend and the second adherend.
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公开(公告)号：EP3029121A3
公开(公告)日：2016-10-05
申请号：EP15197435.9
申请日：2015-12-02
CPC分类号： C09J7/0207 , C09J7/22 , C09J7/38 , C09J167/02 , C09J2201/622 , C09J2203/318 , C09J2467/00 , C09J2467/006 , C09J2471/00 , C09J2475/00 , G02F2202/28
摘要： A surface protective pressure-sensitive adhesive sheet being less staining, less likely to trap air bubbles, and attachable by hand and having good wetting ability on an adherend and having an appropriate level of adherability and light peelability is provided, which includes a pressure-sensitive adhesive layer obtained by crosslinking a polymer-containing pressure-sensitive adhesive composition, wherein the pressure-sensitive adhesive layer has a surface that has a hardness of 0.1 MPa or more and a load curve with a minimum load of -0.3 µN or less as measured by nanoindentation, and which has a residual adhesive strength of 50 % or more, wherein the residual adhesive strength is calculated from the formula: residual adhesive strength (%) = 100 x [(adhesive strength B)/(adhesive strength A)], wherein adhesive strength A is the adhesive strength measured by a process including bonding a standard pressure-sensitive adhesive tape to the surface of an adherend and then peeling off the pressure-sensitive adhesive tape from the adherend surface, and adhesive strength B is the adhesive strength measured by a process including bonding the surface of the pressure-sensitive adhesive layer of the protective pressure-sensitive adhesive sheet to the surface of an adherend, then peeling off the protective pressure-sensitive adhesive sheet from the adherend surface, further bonding a standard pressure-sensitive adhesive tape to the adherend surface from which the protective pressure-sensitive adhesive sheet has been peeled off, and then peeling off the pressure-sensitive adhesive tape from the adherend surface.
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