| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pressure-sensitive adhesive composition easily releasable with energy rays, which shows high initial adhesion to an adherend, hardly reduces adhesion even exposed to high temperatures while maintaining adhesion required for fixation and protection of the adherend, further when peeling and removing, is easily removable without leaving adhesive deposit. <P>SOLUTION: The pressure-sensitive adhesive composition easily releasable with energy rays includes an acrylic polymer, an energy ray-polymerizable oligomer, a polymerization initiator and a crosslinking agent, wherein the polymerization initiator has a weight reduction ratio of 50% or less by a thermogravimetric measurement where the temperature is raised from 30°C to 190 °C at a temperature rise rate of 10°C/min, and kept at 190°C for 30 min. <P>COPYRIGHT: (C)2012,JPO&INPIT |
