PURPOSE: To obtain an adhesive sheet which is excellent in both adhesive strength of an applied body an decreasing effect of the adhesive strength due to the heat-foaming treatment.
CONSTITUTION: A base material 1 is provided with a pressure-sensitive adhesive layer 2 having substantially a flat but uneven thickness-distribution surface at one or both sides thereof. The pressure-sensitive adhesive layer 2 includes a foaming agent foaming and/or swelling with heat. Thereby, a firm adhesive characteristics can be obtained even against a coarse-surface material and the pressure-sensitive adhesive layer deforms three-dimensionaly with heat and the adhesion area decreases effectively and the adhesive force also decreases effectively. And hence, the sheet can be easily, simply, and securely separated.
| JPH0891437 | CUP-LIKE CONTAINER WITH EASILY SEPARABLE COVER MEMBER |
| JPH06367 | A light |
| JP2010111422 | ADHESIVE SHEET WITH PEELING-DETECTING FUNCTION |
HANAI TAKAOMI
OKOCHI NAOKI
AIZAWA KAORU
