| 摘要 |
<p>A multilayered film having outside and inside surfaces comprising: a) a core layer (22) of at least one chlorine-free first thermoplastic polymer having a flexibility and resilience mimicking or greater that that of medical grade polyvinyl chloride film; b) an outside surface layer of at least one chlorine-free second thermoplastic polymer (24) having a Young's modulus up to about ten times the Young's modulus of the core layer thermoplastic polymer and being capable of non-stick release from a heated surface; and c) an inside surface layer (26) of at least one chlorine-free third thermoplastic polymer having a Young's modulus up to about ten times the Young's modulus of the core layer thermoplastic polymer and being capable of heat self-sealing before the core and outside surface layers become substantially deformed under heat; wherein, the film is capable of being expanded (at least in part) under heat and pressure without failure of film integrity, flexibility and resilience. Also provided is a method of preparing such film and film based medical device.</p> |
