The invention provides a biodegradable, flushable ostomy bag liner including: inner walls (3, 4) formed from polyvinylacetate/polyvinylalcohol film of a grade which disintegrates within 60 seconds in water at 50.degree. C., but retains its structural integrity in water at 25.degree. C. for at least two...http://www.google.fr/patents/US5938647?utm_source=gb-gplus-shareBrevet US5938647 - Ostomy bag liner
