PRESSURE-SENSITIVE ADHESIVE, PRESSURE-SENSITIVE ADHESIVE MATERIAL USING SAME, AND METHOD FOR USING SAID ADHESIVE AND MATERIAL

摘要

This adhesive comprises a condensed resin having a structural unit obtained by condensation polymerization of polymerizable monomers, which include a monomer (A) having at least two carboxyl groups and a monomer (B) having at least two amino groups, wherein the adhesive satisfies at least one of (1) and (2), and satisfies (3) below. (1) At least one type selected from the group consisting of the monomer (A), an anhydride of the monomer (A), and the monomer (B) is in liquid form at 25°C. (2) The condensed resin has a polyoxyalkanediyl group. (3) The monomer (A) includes an isophthalic acid.