Patent ID: 6095996
Filing Date: 2000-08-01
Classification: A61L,Y10T

Abstract:
An adhesive composition for use in skin applications comprising:a) at least one adhesive polymer selected from the group consisting of polyisobutylene, polyurethane, natural rubber, chlorobutyl rubber, radiation curable ethylene--propylene elastomer, a silane grafted moisture curable material and polyisoprene, comprising 20-60 parts by weight of the composition;b) a water-swellable polymer selected from the group consisting of i) a mixture of methacrylic acid, n-vinyl 1-2 pyrrolidone and styrene, ii) a copolymer of vinylpyrrolidone and acrylic acid, iii) a copolymer of methacrylic acid and polyvinyl pyrrolidone, iv) sodium polyacrylate coating in acrylic fibers, v) a cross-linked polyacrylanide, comprising 20-80 parts by weight of the composition; andc) at least one water-soluble polymer selected from the group consisting of pectin and carboyxmethylcellulose, comprising 0-30 parts by weight of the composition, wherein when said composition is exposed to 36.degree. C. and 100% relative humidity for eight days it absorbs at least 25% by weight of water and retains at least 50% of its tensile force.