| 摘要 |
PROBLEM TO BE SOLVED: To provide a repeelable adhesive sheet having good adhesive power and sufficiently proceeding with crosslinking of an adhesive layer even with conducting aging under low temperature environment and having excellent mechanical strength and repeelability.SOLUTION: There is provided a repeelable adhesive sheet having an adhesive layer on a substrate, where the adhesive layer is a layer formed by a water dispersion type adhesive composition containing an emulsion (A) of an acrylic copolymer (A1) containing a constitutional unit (a1) derived from alkyl (meth)acrylate which is an alkali insoluble and alkali non-swellable and has an alkyl group having 4 or more carbon atoms and a constitutional unit (a2) derived from a carboxyl group-containing unsaturated monomer, an emulsion (B) of an acrylic copolymer (B1) which is alkali soluble and alkali swellable, a crosslinker (C) and a crosslinking accelerator (D) having pKa of 10.0 or more.SELECTED DRAWING: Figure 1 |
