Sheet for food, container and container for microwave heating

A food sheet with heat-storing polyurethane and ferrite addresses the challenge of temperature separation in microwave heating by absorbing electromagnetic waves, ensuring safe and efficient temperature control without additional containers or shielding.

JP2025142807APending Publication Date: 2025-10-01MITSUBISHI CHEM CORP
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Patent Information

Application Number
JP2024042378
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-03-18
Publication Date
2025-10-01

AI Technical Summary

Technical Problem

Existing methods for maintaining temperature separation of foods during microwave heating require separate containers or additional shielding bodies, increasing manufacturing effort and cost.

Method used

A food sheet containing heat-storing polyurethane and ferrite, which absorbs electromagnetic waves to prevent heating in non-heated compartments, eliminating the need for separate containers or additional shielding.

Benefits of technology

The food sheet effectively suppresses heating in compartments that should remain cool during microwave cooking, enhancing safety and reducing manufacturing complexity and costs.

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Abstract

To selectively suppress heating of a space containing food that is preferred to be in a cold state in microwave cooking by a simple and convenient method.SOLUTION: The present invention relates to a sheet for food containing heat-storing polyurethane (A) and ferrite (B).SELECTED DRAWING: None
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