A pressure-sensitive adhesive obtained by crosslinking an adhesive precursor composition comprising a poly (meth) acrylate polymer having a number average molecular weight of about 25,000 to about 200,000. [Selection] Figure 1約25000~約200000の数平均分子量を含むポリ(メタ)アクリレート高分子を含む接着剤前駆組成物を架橋することにより得られる感圧接着剤。【選択図】図1