Patent ID: 6375977
Filing Date: 2002-04-23
Classification: A61L

Abstract:
An absorptive blister, lesion, bum, or wound dressing containing a hydrocolloid adhesive mass for medical purposes, which comprises:a) 0.2 to 5 parts by weight of an ethoxylated sorbitan fatty acid ester; b) 20 to 50 parts by weight of a hydrocolloid; c) 32 to 120 parts by weight of an adhesive matrix made up of one or more polymers selected from the group consisting of poly(styrene/olefin/styrene) block copolymers, low-molecular polyisobutylenes and high-molecular polyisobutylenes, and one or more compounds selected from the group consisting of tackifying resins, plasticizers, polybutenes, antioxidants, ethylene/vinyl acetate copolymers, butyl rubbers and ethylene/propylene block copolymers; and d) 0 to 15 parts by weight of an acrylate polymer with a glass transition temperature below âˆ’20Â° C.