Pressure sensitive adhesive composition
AssigneeColoplast A/S
InventorsRikke Vaabengaard, Danuta Ciok
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Abstract
A pressure sensitive adhesive composition suitable for medical purposes comprising a rubbery elastomeric base and water soluble or water swellable hydrocolloids, where the adhesive composition includes a substantially homogeneous mixture of 15-60% of one or more rubbery components, 10-60% of a mixture of hydrocolloids that includes a cellulose derivative, amidated pectin, and potato starch, 0-50% of one or more tackifier resins, 0-15% cohesive strengthening agent, 0-10% of a plasticizer and 0-5% pigment. The adhesive shows at least as good properties as state of the art adhesives comprising gelatine with respect to resistance to biological fluids, adhesion to skin, and coherence.
Claims17
A pressure sensitive adhesive composition which is free from components of animal origin, is suitable for medical purposes and which, has a rubbery elastomeric base, said adhesive composition comprising a substantially homogeneous mixture of a) from 15 to 60% of a rubbery component, b) from 10 to 60% of a mixture of water soluble or water swellable hydrocolloids comprising a cellulose derivative, an amidated pectin and potato starch, c) from 0 to 50% of tackifier resin, d) from 0 to 15% of cohesive strengthening agent, e) from 0 to 10% of plasticizer, and f) from 0 to 5% pigment.
A mixture of hydrocolloids which is free from components of animal origin and is suitable for inclusion in a pressure sensitive skin-friendly adhesive, said mixture comprising a cellulose derivative, amidated pectin and potato starch.
Dependencies are inferred from the claim text.