Patent ID: 7812293

Claim:
A multilayer freezable, microwaveable film comprising: (a) a polyolefin film comprising an inner heat sealable layer, at least one core layer adjacent to the heat sealable layer, and an outer skin layer adjacent to the at least one core layer, opposite the heat sealable layer; wherein the inner heat sealable layer comprises at least one polypropylene/alpha-olefin copolymer having a melting point of at least about 105° C. and a melt flow rate of about 0.5 g/10 min. to about 45 g/10 min. at about 230° C.; wherein the at least one core layer comprises a polymeric material having a melting point of at least 105° C.; and wherein the outer skin layer comprises at least one polypropylene/alpha-olefin copolymer having a melting point of at least about 120° C.; and (b) at least one outer protective layer bonded to the outer skin layer, the outer protective layer being formed from a heat resistant polymeric material; wherein the multilayer freezable, microwaveable film can be exposed to a temperature in the range of about −20° C. to about 0° C. without fracturing, and wherein the multilayer freezable, microwaveable film is temperature resistant at temperatures of about 150° C.