Coated microwave heating sheet

Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...

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428 343, 428408, 428414, 4284251, 428464, 428452, 428481, 428511, 428514, 428530, 428702, 428918, 4273831, 219 1055E, 219113, 383116, 426127, 426113, B32B 516, B65D 3002, B65D 8500

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050790838

ABSTRACT:
A coated sheet material is provided for wrapping, packaging or shipping food articles that are to be heated in a microwave oven. The sheet is formed from a paper or paperboard backing which is thermally and dimensionally stable when exposed to microwave energy. On at least one side is provided a smooth calendered surface or the sheet material is treated by processing as with a filler coating to fill the voids between the paper fibers and to thereby present a smooth surface. A microwave interactive layer is applied to the smoothed surface from a fluid or vapor state. The interactive coating can comprise carbon, a semiconductive metal coating or other microwave interactive material.

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Pending patent application Ser. No. 601,451, Thermocompensating Suseptor.
Pending patent application Ser. No. 511,840, filed 4/20/90, a continuation of Ser. No. 261,380, filed 10-24-88 (abandoned), Laminated Sheets for Microwave Heating.

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