Adhesive film
    2.
    发明专利
    Adhesive film 有权
    胶粘膜

    公开(公告)号:JP2011042761A

    公开(公告)日:2011-03-03

    申请号:JP2009193114

    申请日:2009-08-24

    摘要: PROBLEM TO BE SOLVED: To provide an adhesive film between the adjacent piled ones of which a blocking phenomenon is hardly observed and particularly even after the adhesive film is stored in a rolled state, the blocking phenomenon is hardly observed, which is excellent in processing suitability, which hardly foams even when stuck to an adherend and the adhesive film-stuck adherend is treated at high temperature, which has excellent transparency and exhibits hardly-changed adhesive power while keeping the external appearance of the adherend. SOLUTION: The adhesive film is a polypropylene-based resin film comprising a laminate obtained by layering an adhesive layer on one surface of a base material layer comprising a polypropylene-based resin and a release layer on the other surface thereof. The average surface roughness SRa of the surface of the release layer is 0.050-0.200 μm and that of the surface of the adhesive layer is ≤0.030 μm. The adhesive film has 90-100% contact area with the adherend, which area is defined in the description of this patent, satisfies the expression: (a2-a1)×2-(b2-b1)=-50 to 50 mg/m 2 (wherein a1 is the amount of a polymer component to be bled from the adherend surface and an acrylic resin plate when the adhesive film is stuck to the acrylic resin plate, kept at 23°C for 24 hours and then exfoliated, which method is mentioned in the description; b1 is the amount of an antioxidant to be bled at that time; a2 is the amount of the polymer component to be bled from the adherend surface and the acrylic resin plate when the adhesive film is stuck to the acrylic resin plate, kept at 40°C for one week and then exfoliated; b2 is the amount of the antioxidant to be bled at that time) and has 1-40% haze. COPYRIGHT: (C)2011,JPO&INPIT

    摘要翻译: 要解决的问题:为了在相邻的堆叠之间提供粘合膜,其中难以观察到阻塞现象,特别是即使在粘合剂膜保持卷曲状态之后,几乎看不到粘连现象,这是优异的 在加工适应性方面,即使在粘附到被粘物上也难以发泡,并且粘合剂膜粘附的被粘物在高温下进行处理,其在保持被粘物的外观的同时具有优异的透明性并且显示出几乎不改变的粘合力。 解决方案:粘合剂膜是一种聚丙烯基树脂膜,其包含通过在其另一个表面上包含聚丙烯类树脂和剥离层的基材层的一个表面上分层粘合剂层而获得的层压体。 剥离层表面的平均表面粗糙度SRa为0.050〜0.200μm,粘合剂层的表面的平均表面粗糙度SRa为0.030μm。 粘合膜与被粘物具有90-100%的接触面积,该面积在本专利的说明书中定义,满足以下表达式:(a2-a1)×2-(b2-b1)= - 50〜50mg / m < SP> 2< SP>(其中,a1是从被粘物表面引出的聚合物成分的量,当将粘合膜粘贴到丙烯酸树脂板上时的丙烯酸类树脂板,在23℃下保持24小时 然后剥离,说明书中提到了哪种方法; b1是当时要排出的抗氧化剂的量; a2是当粘合剂膜从被粘物表面和丙烯酸树脂板排出的聚合物组分的量 粘贴到丙烯酸树脂板上,在40℃保持1周,然后剥离; b2是当时要排出的抗氧化剂的量),并且具有1-40%的雾度。 版权所有(C)2011,JPO&INPIT