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EP0240571A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Microwave-heated cooked foods

Assignee: Toppan Inc
•
Filing: 1986-09-12
•
Granted: —
•
Expires: 2006-09-12
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Abstract

Abstract Microwave-heated cooked foods filled in a see-through package in which the contents can be stored for a long time at ordinary temperature, particularly in a package made of a transparent wrapping material having high oxygen and water vapor barrier properties and a high microwave permeability. The wrapping material comprises a heat-reistant synthetic resin film or laminate, a heat-sealable heat-resistant synthetic resin film or laminate as an innermost layer, and an intermediate layer of a single metal oxide, particularly a thin film of silicon oxide or mixture thereof. After filling the package with the contents, it is irradiated with microwave to heat and sterilize, thus giving cooked foods having a long shelf life.

Inventors

  • 👤 Hachiro Nakamura
  • 👤 Yoshihiro Nakagawa
  • 👤 Yukio Kawasaki Factory Etc. Kobayashi
  • 👤 Hitoshi Kawasaki Factory Etc. Sasaki

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-04 03:49
CPC Classifications
B; B32; B32B; B32B9/00; B32B9/04; B32B9/045; B32B27/00; B32B27/04; B65; B65D; B65D81/00; B65D81/34; B65D81/3446; B32B2307/00; B32B2307/30; B32B2307/306; B32B2307/31; B32B2439/00; B32B2439/70; B32B2553/00; B65D2581/00; B65D2581/34; B65D2581/3437; B65D2581/3471; B65D2581/3472; B65D2581/3474; B65D2581/3479; B65D2581/3481

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 112 words
A microwave heated cooked food the contents of which can be observed and which is possible to be preserved for a long period of time comprising said contents being placed in a container made from a transparent and microwave permeable laminate packaging material prepared by disposing a thin layer of a metallic oxide alone or a mixture thereof, as an intermediate layer, between a heat resistant synthetic resin film base alone or a laminate thereof and a heat-sealable, heat resistant synthetic resin film alone or a laminate obtained therefrom containing said film as the innermost layer; and then said container being irradiated with microwave thereby heating said contents to sterilize the same.
Claim 2
Dependent Claim 112 words
A microwave heated cooked food the contents of which can be observed and which is possible to be preserved for a long period of time comprising said contents being placed in a container made from a transparent and microwave permeable laminate packaging material prepared by disposing a thin layer of a metallic oxide alone or a mixture thereof, as an intermediate layer, between a heat resistant synthetic resin film base alone or a laminate thereof and a heat-sealable, heat resistant synthetic resin film alone or a laminate obtained therefrom containing said film as the innermost layer; and then said container being irradiated with microwave thereby heating said contents to sterilize the same.
Claim 3
Dependent Claim 48 words
A microwave heated cooked food the contents of which can be observed and which is possible to be preserved for a long period of time as claimed in claim 1 wherein said metallic oxide alone or a mixture thereof is a silicon oxide alone or a mixture thereof.

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