Hydrocolloid/adhesive composition
AssigneeMinnesota Mining and Manufacturing Company
InventorRoger A. Olsen
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Abstract
Hydrocolloid adhesive compositions are disclosed comprising a rubbery elastomeric base having dispersed therein hydrocolloid particles, at least some of which are polycationic hydrocolloid particles. The compositions have enhanced resistance to breakdown by body fluids and are especially useful as wound dressings.
Claims20
A pressure sensitive adhesive composition comprising a rubbery elastomer having dispersed therein water absorbable or swellable hydrocolloid particles wherein at least some of said hydrocolloid particles are polycationic hydrocolloid particles, said composition having an Integrity Value of at least 60 percent and an Absorbency Value of at least 180 percent.
A pressure sensitive adhesive composition comprising a rubbery elastomer having dispersed therein at least 10 percent by weight of a polycationic hydrocolloid powder and at least 10 percent by weight of polyanionic hydrocolloid or a mixture of polyanionic and neutral hydrocolloids.
Dependencies are inferred from the claim text.