Patent ID: 8129031

Claim:
An autoclavable film comprising: a first microlayer of a heat resistant polymer selected from the group consisting of polypropylene homopolymers, polypropylene random copolymers, cyclic olefin copolymers, and combinations thereof, and a second microlayer of a flexible polymer having a melting temperature ranging between about 50° C. and about 120° C. attached to the first microlayer, the flexible polymer being selected from the group consisting of elastomeric polypropylenes, low density polyethylenes, ultra low density polyethylenes, substantially linear polyethylenes, ethylene methyl acrylate copolymers, ethylene acrylic acid copolymers, and combinations thereof, each of the first microlayer and the second microlayer having a thickness ranging between about 0.01 microns and about 10 microns.