초록 ▼

A package with a preferentially releasable seal is provided, suitable for use in microwaveable food cooking. The seal includes a heat-releasable polymer in contact with a microwave susceptor material. Upon heating in a microwave oven, the seal releases in response to force generated by the cooking o

A package with a preferentially releasable seal is provided, suitable for use in microwaveable food cooking. The seal includes a heat-releasable polymer in contact with a microwave susceptor material. Upon heating in a microwave oven, the seal releases in response to force generated by the cooking of the food.

대표청구항 ▼

A package useful for cooking food which expands upon cooking in a microwave oven, comprising; (a) a thermally stable film wrapped about said food; (b) at least one layer of heat releasable thermoplastic material located on at least a portion of the surface of said thermally stable film and forming a

A package useful for cooking food which expands upon cooking in a microwave oven, comprising; (a) a thermally stable film wrapped about said food; (b) at least one layer of heat releasable thermoplastic material located on at least a portion of the surface of said thermally stable film and forming a layered face-to-face seal from at least two surface areas of said thermally stable film, whereby the film is sealed in its wrapped conformation; and (c) a microwave susceptor material contained within at least a part of said seal and extending over at least that portion of the surface of the film which is wrapped about the food, said susceptor material having sufficient microwave absorbance to generate sufficient heat under microwave cooking conditions to brown or crispen the surface of the food and to raise the heat releasable thermoplastic material of the seal above its yield temperature, whereby said seal selectively opens in response to the expansion of said food, thereby maintaining contact between the surface of the food and the microwave susceptor material.