An acrylic composition, which has excellent flexibility at low temperature and can form a formed body whose adhesion at room temperature is suppressed, the formed body of the acrylic composition, a key sheet of a mobile telephone, and a light guide obtained from the formed body are provided. The acrylic composition contains specific long chain di(meth)acrylate (A) and mono(meth)acrylate (B), and the glass-transformation temperature (TgDMS) of the polymer of the acrylic composition is 40°C or less. The formed body is obtained by polymerization of the acrylic composition, and the key sheet of the mobile telephone and the light guide are obtained from the formed body.
本发明提供了一种
丙烯酸组合物,该组合物在低温下具有优异的柔韧性,并能形成室温下粘附性受到抑制的成型体、
丙烯酸组合物成型体、移动电话的按键片以及由成型体获得的导光板。
丙烯酸组合物含有特定的长链二(甲基)
丙烯酸酯 (A) 和单(甲基)
丙烯酸酯 (B),
丙烯酸组合物聚合物的
玻璃转化温度 (Tg
DMS) 为 40°C 或以下。通过聚合
丙烯酸组合物可以得到成型体,移动电话的按键片和导光板就是从成型体中得到的。