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US 11,571,326 B2Granted
Biodegradable odor barrier film
AssigneeHollister Incorporated
InventorMoh-Ching Oliver Chang
Life of this patent
Estimating the term…
Abstract
A biodegradable odor barrier film for ostomy, continence and bowel management applications includes a barrier layer comprising at least about 90% wt. polyglycolic acid. The biodegradable odor barrier film provides excellent mechanical and odor barrier properties desired in ostomy, continence and bowel management applications.
Claims19
A biodegradable odor barrier film for ostomy, continence and bowel management applications, comprising:
- a barrier layer comprising polyglycolic acid (PGA), the barrier layer having a biodegradability that meets the requirements of ASTM D6400, EN13432 or ISO14855;
- an outer layer comprising a copolyester based on terephthalic acid, adipic acid, and 1,4-butanediol, wherein the copolyester is an aliphatic-aromatic copolyester that is biodegradable to terephthalic acid, adipic acid, and 1,4-butanediol and meets the requirements of ASTM D6400, EN13432, and
- wherein the biodegradable odor barrier film has a biodegradability that meets the requirements of ASTM D6400, EN13432 or ISO14855 and a dimethyl disulfide (DMDS) breakthrough time greater than about 200 minutes when tested according to the modified Test Operations Procedure (TOP) 8-2-501.
Dependencies are inferred from the claim text.