초록 ▼

A pressure-sensitive adhesive having the capacity to absorb at least about 7 percent of its own weight in water and having a desirable combination of plasticity and wet-stick characteristics, as well as good dry skin adhesion. An adhesive composition particularly suitable for use as a stoma seal adh

A pressure-sensitive adhesive having the capacity to absorb at least about 7 percent of its own weight in water and having a desirable combination of plasticity and wet-stick characteristics, as well as good dry skin adhesion. An adhesive composition particularly suitable for use as a stoma seal adhesive comprises (I) from about 30 to about 80 parts by weight each of (a) a pressure-sensitive adhesive component comprising a synthetic or natural gum-like substance and (b) a moisture absorbing component comprising a synthetic carbohydrate or natural water soluble or swellable hydrocolloid together with (II) from about 2 percent to about 20 percent by weight silica, based on the total weight of the adhesive composition.

대표청구항 ▼

A pressure-sensitive adhesive composition having a Williams Plasticity Number of from about 2 mm to 4 mm and the capacity to absorb at least about 7 percent of its own weight in water comprising: (a) from about 30 to about 80 parts by weight of a pressure-sensitive adhesive component selected from t

A pressure-sensitive adhesive composition having a Williams Plasticity Number of from about 2 mm to 4 mm and the capacity to absorb at least about 7 percent of its own weight in water comprising: (a) from about 30 to about 80 parts by weight of a pressure-sensitive adhesive component selected from the group consisting of natural rubber, silicone rubber, acrylonitrile rubber, polyurethane rubber, polyisobutylene, acrylic polymers and mixtures thereof, (b) from about 30 to about 80 parts by weight of a moisture absorbing component selected from the group consisting of karaya gum, locust bean gum, sodium acrylate polymers, polyvinylalcohol, powdered pectin, gelatin, carboxymethylcellulose, high molecular weight polyethylene glycol, and mixtures thereof; and (c) from about 2 percent to about 20 percent by weight based on the total weight of said adhesive composition of silica.