Patent ID: 8597796

Claim:
A multilayer film comprising an at least flushable, thermoplastic layer composite made of A) at least one layer which is at least comminutable via exposure to water and which does not dissolve in water having a temperature of at most 25° C. until at least two minutes have passed, or which is resistant to cold water, and which is formed of at least one at least partially hydrolyzed polyvinyl acetate with layer thickness <10 μm, and which does not comprise any solubility promoting agent, and is adjacent to layer B) B) at least one cold-water-soluble layer of at least one at least partially hydrolyzed polyvinyl acetate and at least one substance that promotes solubility in water, selected from the group consisting of biodegradable polymers, surfactants, inorganic pigments and fillers, said biodegradable polymers being selected from the group consisting of lactic acid (ester) homo- or copolymers, polyhydroxyalkanoates, starch, cellulose, cellulose derivates, polycaprolactones, polyesters, polyethers, ethylene-vinyl alcohol copolymers and mixtures thereof, wherein said at least one substance that promotes solubility in water includes at least one of said biodegradable polymers.