Microwave energy interactive heating sheet
First Claim
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1. A microwave energy interactive heating sheet comprising:
- at least two plies of a microwave energy interactive insulating material arranged in a superposed, layered configuration, wherein each ply of microwave energy interactive insulating material includesa susceptor film comprising microwave energy interactive material supported on a first polymer film layer,a moisture-containing layer superposed with the microwave energy interactive material, anda second polymer film layer joined to the moisture-containing layer in a predetermined pattern, thereby defining a plurality of expandable insulating cells between the moisture-containing layer and the second polymer film layer,wherein at least some of the expandable insulating cells are configured to inflate when the microwave energy interactive heating sheet is exposed to microwave energy.
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Abstract
A microwave energy interactive heating sheet includes at least two susceptor layers and a plurality of expandable insulating cells. At least some of the expandable insulating cells inflate when exposed to microwave energy.
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Citations
25 Claims
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1. A microwave energy interactive heating sheet comprising:
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at least two plies of a microwave energy interactive insulating material arranged in a superposed, layered configuration, wherein each ply of microwave energy interactive insulating material includes a susceptor film comprising microwave energy interactive material supported on a first polymer film layer, a moisture-containing layer superposed with the microwave energy interactive material, and a second polymer film layer joined to the moisture-containing layer in a predetermined pattern, thereby defining a plurality of expandable insulating cells between the moisture-containing layer and the second polymer film layer, wherein at least some of the expandable insulating cells are configured to inflate when the microwave energy interactive heating sheet is exposed to microwave energy. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 16, 17)
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13. A microwave energy interactive heating sheet comprising:
at least two plies of microwave energy interactive insulating material arranged in a superposed, layered configuration, wherein each ply of microwave energy interactive insulating material includes a susceptor film comprising microwave energy interactive material supported on a first polymer film, a support layer joined to the microwave energy interactive material, the support layer comprising a material selected from the group consisting of paper, paperboard, and polymer film, and a second polymer film joined to the support layer such that the support layer is positioned between the microwave energy interactive material and the second polymer film, the second polymer film being selectively joined to the support layer to define at least one closed cell between the support layer and the second polymer film layer, wherein the closed cell is operative for inflating in response to sufficient exposure to microwave energy. - View Dependent Claims (14, 15, 18, 19, 20, 21, 22, 23, 24, 25)
Specification