| abstract |
The present invention provides a hydrophilic, medically useful pressure sensitive adhesive composition to have optimal adhesive and cohesive properties. This adhesive composition comprises an adhesive polymer, a swelling agent; The herbal medicine and, if desired, a modified polymer swellable in the swelling agent, comprising a polymer which forms a pressure-sensitive adhesive when swelled by the swelling agent, and the combination of the modifying polymer and the swelling agent, while controlling the adhesion of the adhesive polymer Improves aggregation of the composition. |