首页> 外国专利> Transparent adhesive tape, film laminate with metal thin film, cover panel-touch panel module laminate, cover panel-display panel module laminate, touch panel module-display panel module laminate, and image display device

Transparent adhesive tape, film laminate with metal thin film, cover panel-touch panel module laminate, cover panel-display panel module laminate, touch panel module-display panel module laminate, and image display device

机译:透明胶带,带有金属薄膜的膜层压体,覆盖面板-触摸面板模块层压体,覆盖面板-显示面板模块层压体,触摸面板模块-显示面板模块层压体和图像显示装置

摘要

The present invention provides a transparent adhesive tape, which is capable of suppressing the occurrence of foaming, lifting and separation at the bonding interface even in cases where an object to be bonded that generates an outgas in a high temperature environment such as a polycarbonate plate or an acrylic plate is used, and which is also capable of suppressing deterioration of a metal thin film at the same time. The present invention also provides: a film laminate with a metal thin film, a cover panel-touch panel module laminate, a cover panel-display panel module laminate, a touch panel module-display panel module laminate, each of which is produced using the transparent adhesive tape; and an image display device. The present invention is a transparent adhesive tape which comprises an adhesive layer that is formed of an adhesive composition that is mainly composed of a (meth)acrylic acid ester copolymer. This transparent adhesive tape is characterized in that the adhesive layer has a loss tangent peak of the dynamic viscoelasticity spectrum at a frequency of 10 Hz within the temperature range from -20°C to 20°C, a shear storage modulus at 200°C of 2.5 × 104 Pa or more, and a gel fraction of 70% by weight or more.
机译:本发明提供一种透明胶带,即使在诸如聚碳酸酯板或聚碳酸脂板的高温环境下被粘合的物体产生脱气的情况下,该透明粘合带也能够抑制在粘合界面处发生起泡,剥离和分离。使用丙烯酸板,并且该丙烯酸板还能够同时抑制金属薄膜的劣化。本发明还提供:具有金属薄膜的膜层压体,盖板-触摸面板模块层压体,盖板-显示面板模块层压体,触摸板模块-显示面板模块层压体,各自使用以下方法生产。透明胶带和图像显示装置。本发明是一种透明胶带,其包括由粘合剂组合物形成的粘合剂层,该粘合剂组合物主要由(甲基)丙烯酸酯共聚物组成。该透明胶带的特征在于,在-20℃至20℃的温度范围内,粘合剂层具有在10Hz的频率下的动态粘弹性谱的损耗角正切峰,在200℃下的剪切储能模量为0。 2.5×104 Pa以上,且凝胶分数为70重量%以上。

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