THERMOPLASTIC FILM, METHODS FOR MAKING SUCH FILM, AND THE USE OF SUCH FILM AS BATTERY SEPARATOR FILM

摘要

A thermoplastic film including a microporous polymeric membrane; and a non-woven web bonded to the polymeric microporous membrane, wherein the web comprises a plurality of fibers comprising polyolefin having a Tm≧85.0° C. and a Te-Tm≦̸10.0° C.