| 摘要 |
PROBLEM TO BE SOLVED: To provide a waterproof double-sided adhesive tape for portable electronic appliances, which has excellent waterproofness and punching workability without causing the problem similar to that when a foam sheet is used as a base material layer thereof.SOLUTION: The waterproof double-sided adhesive tape A for portable electronic appliances contains: the base material layer 4; and tacky adhesive layers 3, 3 respectively laminated on/integrated with both surfaces of the base material layer 4. The base material layer 4 is obtained by layering/integrating second unfoamed synthetic resin layers 2, 2, each of which contains at least one synthetic resin selected from the group consisting of thermoplastic elastomers and rubber-based resins, respectively on/with both surfaces of a first unfoamed synthetic resin layer 1 containing at least one synthetic resin selected from the group consisting of polyolefin resins and polyester resins. |
