Pressure sensitive adhesive composition
First Claim
1. A pressure sensitive adhesive composition suitable for medical purposes and which comprises a rubbery elastomeric base in which a water soluble or water swellable hydrocolloid, a combination of pectin, gelatine and carboxymethylcellulose, is substantially homogeneously dispersed, said adhesive composition comprising, as sole essential components, an admixture of from 15 to 60 percent by weight of butyl rubber, from 15 to 60 percent by weight of tackifier resin, from 1 to 10 percent by weight of tackifying liquid constituent, from 20 to 60 percent by weight of hydrocolloid and, optionally, up to 3 percent by weight of pigment.
1 Assignment
0 Petitions
Accused Products
Abstract
A pressure sensitive adhesive composition suitable for medical purposes comprising a rubbery elastomeric base and one or more water soluble or water swellable hydrocolloids, the adhesive composition comprising a substantially homogeneous mixture of 15-60% of a butyl rubber, 15-60% of one or more tackifier resins, 1-10% of a tackifying liquid constituent, 20-60% of one or more hydrocolloids and 0-3% of a pigment shows very good properties as an adhesive for ostomy appliances.
-
Citations
9 Claims
- 1. A pressure sensitive adhesive composition suitable for medical purposes and which comprises a rubbery elastomeric base in which a water soluble or water swellable hydrocolloid, a combination of pectin, gelatine and carboxymethylcellulose, is substantially homogeneously dispersed, said adhesive composition comprising, as sole essential components, an admixture of from 15 to 60 percent by weight of butyl rubber, from 15 to 60 percent by weight of tackifier resin, from 1 to 10 percent by weight of tackifying liquid constituent, from 20 to 60 percent by weight of hydrocolloid and, optionally, up to 3 percent by weight of pigment.
Specification