IMPROVED THERMOPLASTIC HYDROPHILIC POLYMERIC COMPOSITIONS FOR MOISTURE VAPOUR PERMEABLE STRUCTURES

摘要

The present invention relates to thermoplastic hydrophilic polymeric compositions for making a liquid impermeable moisture vapour permeable structure, for example by forming the composition into a layer or film. The thermoplastic compositions comprise selected thermoplastic polymers and selected compatible plasticiser that provide the thermoplastic hydrophilic composition with a desired tackiness level, without impairing the moisture vapour permeability of films or layers made from the thermoplastic hydrophil ic polymeric compositions. The layers made from the thermoplastic hydrophilic polymeric compositions of the present invention can find a variety of applications wherein liquid imperviousness and moisture vapour permeability are desirable.