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US 5,399,842 AGranted
Composite material for microwave heating
AssigneeToyo Metallizing Co., Ltd.
InventorsHideo Watanabe, Katsumasa Sagarifuji, Akira Mitoma
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Abstract
A composite material suitable for use as a microwave heating wrapper, comprising a base and an electroconductive layer formed on at least one side of the base, the electroconductive layer being a mixed layer of at least one metal and at least one metal oxide.
Claims11
A method of heating a substance in a microwave oven comprising the steps of:
- a) contacting said substance to be heated in a composite material wrapper,
- said composite material wrapper comprising a base material and a non-sparking, reactive vapor-deposited electroconductive layer, wherein said non-sparking, reactive vapor-deposited electroconductive layer is present on at least one side of said base material and is composed of at least one metal and at least one metal oxide, and
- further wherein said layer has a thickness having a ratio of said metal to said metal oxide which is not increasing or decreasing through the thickness, said ratio being selected whereby said composite material wrapper does not spark upon being radiated with microwave radiation;
- and
- b) subjecting said substance and composite material wrapper to microwave energy to heat said substance.
2 more elements
A method for browning foods in a microwave oven including the steps of:
- a) contacting an article to be browned with a composite composed of a base layer and a single, reactive-vapor-deposited electroconductive layer of a mixture of at least one metal and at least one metal oxide, said electroconductive layer having a thickness of about 400 .ANG. to about 650 .ANG.;
- and
- b) subjecting said article and composite to microwave energy to brown and heat said article, respectively.
Dependencies are inferred from the claim text.