INTERLAYER FILLER MATERIAL FOR TOUCH PANEL, AND TOUCH PANEL

• Main Authors: OKABAYASHI TAKAZUMI, EBINA RYOSUKE, FUKAYA JUICHI
• Format: Patent
• Language: English; Japanese
• Published: 17.11.2016
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

PROBLEM TO BE SOLVED: To provide an interlayer filler material for a touch panel, which is used to fill the interlayer in the inside of a touch panel to be used for a portable information terminal or the like, with which an adhesive residue scarcely remains on a punching blade in punching, and air bubbles are scarcely produced in the interface between the interlayer filler material for a touch panel and the polarizing plate even when exposed to high temperature and high humidity in a state in which any foreign body with height of several tens of μm is interposed therebetween, and to provide a touch panel including the interlayer filler material for a touch panel.SOLUTION: An interlayer filler material for a touch panel is used for filling an interlayer in the inside of a touch panel and contains polyvinyl acetal, a plasticizer, and a tackifier.SELECTED DRAWING: None 【課題】携帯情報端末等に用いられるタッチパネル内部の層間を充填するために用いられ、打ち抜き加工時に打ち抜き刃に対して糊残りが少なく、高さが数十μｍ程度の異物を挟み込んだ状態で高温高湿下に晒された場合であってもタッチパネル用層間充填材料と偏光板との界面に気泡が生じにくいタッチパネル用層間充填材料を提供する。また、該タッチパネル用層間充填材料を含むタッチパネルを提供する。【解決手段】タッチパネル内部の層間を充填するために用いられるタッチパネル用層間充填材料であって、ポリビニルアセタールと可塑剤とタッキファイヤーとを含有するタッチパネル用層間充填材料。【選択図】なし