Radiation crosslinking copolymer of ethylene and vinyl...

Details Radiation crosslinking copolymer of ethylene and vinyl... Radiation crosslinking copolymer of ethylene and vinyl...

B - Operations, Transporting

29

C

204/91.63

B29C 35/08 (2006.01) A61L 28/00 (2006.01) B29C 71/04 (2006.01) C08L 23/08 (2006.01)

Patent

CA 1261299

ABSTRACT A skin barrier composition is provided which is composed of a mixture of a copolymer resin of ethylene and vinyl acetate (EVA), and a water-insoluble dry tack-providing elastomer such as polyisobutylene, the mixture being free of resin monomer or polymer capable of irradiation crosslinking with the EVA copolymer and the elastomer being present in amounts of 25-55% by weight of the composition. A hydrocolloid may also be included. The composition after mixing and molding, is subjected to ionizing irradiation to form crosslinked polymer networks of the EVA. The compositions have exceptional properties for use as barrier sheets, rings, or strips in ostomy, wound drainage, and incontinence devices.

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