ADHESIVE PRODUCT AND PRESSURE-SENSITIVE ADHESIVE

摘要

PROBLEM TO BE SOLVED: To provide an adhesive product wherein a crosslinking system is constructed by utilizing carboxyl groups and which has a good tack and excellent peelability. SOLUTION: The adhesive product has an adhesive layer containing a crosslinked polymer derived from monomer components containing essentially an alkyl (meth)acrylate and a carboxylated monomer. The crosslinked polymer in the adhesive layer is characterized in that the gel fraction X (mass%) and the degree of swelling Y (the number of times by volume) satisfy the formula: Y<=-(6.5/3)X+(535/3), provided that Y>0 and X>0.