| abstract |
The present invention relates to a composition for an adhesive hydrogel that exhibits adhesiveness suitable for repeated use without involving special work such as washing with water, and particularly less irritating to the skin, and its use (for example, adhesiveness). An object is to provide a hydrogel, a gel sheet, and an electrode pad). The present invention provides an adhesive hydrogel composition comprising at least a polymer matrix forming material, water, and a polyhydric alcohol, wherein the polymer matrix forming material includes at least (a) (Meth) acrylic acid, (meth) acrylic acid derivatives, crotonic acid and / or vinyl derivatives having 2 to 5 carbon atoms, (b) (meth) acrylamide and / or (meth) acrylamide derivatives, (C) N-vinyl-2-caprolactam and / or N-vinyl-2-valerolactam and (d) a crosslinkable monomer, and the content of (b) in the adhesive hydrogel composition Is 2 to 20% by weight. [Selection figure] None |