Gross, H.H.GrossWack, HolgerHolgerWackAlthaus, WilhelmWilhelmAlthaus2022-03-082022-03-081999https://publica.fraunhofer.de/handle/publica/304273NOVELTY - A seal for preventing liquids from entering or leaving a system, comprises applying a biologically non-decomposable polymer in powder or encapsulated form, or on a material, to the area to be sealed. USE - The arrangement is used e.g. to seal pipes, waste tips, etc.. ADVANTAGE - The seal is simple to apply.de608620patent1997-19748631