| 摘要 |
PROBLEM TO BE SOLVED: To provide a substrateless double-sided adhesive sheet capable of easily discriminating a double-sided releasing film laminated on an adhesive layer through visual observation, in a step of bonding a member by using the substrateless double-sided adhesive sheet. ! SOLUTION: In a substrateless double-sided adhesive sheet in which each of polyester films having releasing layers is laminated on both surfaces of an adhesive layer through the releasing layers, at least one polyester film has a laminated structure, and contains an organic photochromic compound in an intermediate layer excluding the outermost layer in the laminated structure. ! COPYRIGHT: (C)2014,JPO&INPIT |
