Patent ID: 7270860
Filing Date: 2007-09-18
Classification: A61F,B32B,C08L,Y10T

Abstract:
1. An ostomy pouch having two side walls, one side wall of which has a stoma-receiving opening formed therein and an attachment means located about said stoma-receiving opening for peristomal attachment of said ostomy pouch to a patient, wherein each of said two side walls comprises a multilayer chlorine-free film having an odor barrier layer co-extruded with at least one heat-sealable skin layer comprising an ethylene polymer or copolymer or blend thereof; the at least one skin layer of the one side wall facing the at least one skin layer of the other side wall, being heat-sealed together along the peripheral edge portions of said ostomy pouch; said odor barrier layer of each side wall comprising about 70% to 90% per total weight of the odor barrier layer of an amorphous polyamide resin, blended with about 10% to 30% per total weight of the odor barrier layer of an anhydride-modified olefinic polymer or copolymer having a density of 0.95 g/cc or lower, in which said odor barrier layer has a secant modulus that is less than that of an unmodified odor barrier layer of the same thickness, of 100% per total weight of the odor barrier layer of the same amorphous polyamide, as measured in accordance with ASTM D882-97.