| 摘要 |
The present invention provides a pressure-sensitive adhesive sheet having a pressure-sensitive adhesive layer which has both high corrosion resistance and adhesion reliability. The acrylic pressure-sensitive adhesive sheet of the present invention contains at least an acrylic pressure-sensitive adhesive layer containing as a main component an acrylic polymer formed from a composition containing a monomer mixture or a partially polymerized product thereof, in which the monomer mixture contains the following (m1), (m2) and (m3), or (m1), (m2), (m3) and (m4), and in which a content of each component (m1), (m2), (m3), and (m4) is 35 to 97.5% by mass, 2 to 40% by mass, 0.1 to 25% by mass, and 0 to 30% by mass, respectively: (m1) an alkyl(meth)acrylate monomer having an alkyl group with 1 to 12 carbon atoms, which is represented by Formula (1), [Chem. 1] CH2═C(R1)COOR2   (1) (in Formula (I), R1 represents a hydrogen atom or a methyl group, and R2 represents an alkyl group with 1 to 12 carbon atoms); (m2) a vinylic monomer having a nitrogen atom(s) in its skeleton (excluding (m3)); (m3) an N-hydroxyalkyl(meth)acrylamide monomer having a hydroxyalkyl group with 1 to 4 carbon atoms; and (m4) a monomer copolymerizable with the above-described (m1) to (m3). |
