PROTECTIVE FILM, ADHESIVE SHEET AND FLOOR SURFACE- PROTECTIVE STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide an adhesive film exhibiting high durability. SOLUTION: The adhesive sheet comprises a substrate layer, a protective layer covering one surface of the substrate layer, and an adhesive layer formed on the other surface of the substrate layer, where the protective layer has a protective film comprising a cured resin and a filler dispersed in the cured resin, the filler comprising a ceramic particle containing a composition of alumina and zirconia and zirconia being dispersed in the ceramic particle in the crystalline form of a tetragonal crystal.