| 摘要 |
PROBLEM TO BE SOLVED: To provide a pressure-sensitive adhesive laminate 10 which is produced by extrusion molding, can be stuck to an adherend with good adhesion and can easily be peeled off if necessary. SOLUTION: The pressure-sensitive adhesive laminate 10 is formed by multilayer coextrusion molding and comprises a back layer 11, a foamed layer 13 and a pressure-sensitive adhesive layer 19. The pressure-sensitive adhesive layer 19 comprises a mixture of a soft propylene polymer and isotactic polypropylene, wherein the soft propylene polymer has an ethylene component content of 0.1-30 mol% and anα-olefin component content of 0.1-30 mol%, and has a melting point of <120°C or no melting point as measured by differential scanning calorimetric analysis. The foamed layer 13 has an expansion ratio of 1.1-3.0, the pressure-sensitive adhesive laminate 10 has a total thickness of 200-500μm, and the pressure-sensitive adhesive layer 19 has a thickness corresponding 5-40% of the total thickness. COPYRIGHT: (C)2010,JPO&INPIT |
