Patent ID: 6979494

Claim:
A film comprising: a first layer comprising at least about 70 weight %, based on the weight of the first layer, of a polyamide blend comprising: between about 1 to about 50 weight % of one or more high-melting polyamides, based on the weight of the polyamide blend, wherein each of the one or more high-melting polyamides has a melting point of at least about 210° C.; and at least about 50 weight %, based on the weight of the polyamide blend, of one or more low-melting polyamides, wherein each of the one or more low-melting polyamides has a melting point of less than about 210° C.; and a second layer comprising one or more polyamides, wherein the second layer has a melting point of at least about 210° C.; the film has first and second opposite outer surfaces and the first layer forms the first outer surface of the film; and the film is substantially free of polyolefin.