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EP0205304A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Package for microwave cooking

Assignee: Individual
•
Filing: 1986-06-03
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Granted: —
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Expires: 2006-06-03
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Abstract

Abstract @ A unique laminate suitable for formation into packages for the microwave heating of foodstuffs is provided. Metallized polymeric film is selectively demetallized to provide discrete metallized regions, the patterned film is laminated with outer stabilizing layers, for example, paper, and the laminate formed into a package. When used for heating a foodstuff, the discrete metallized region is located adjacent the foodstuff and on the opposite side of the foodstuff from the source of microwave energy. The metallized region re- suits in conduction heat being applied to the foodstuff as well as microwave heating.

Inventors

  • 👤 Donald Edward Beckett

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-30 02:47
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; B32B27/00; B32B27/06; B32B27/08; B32B27/10; B65; B65D; B65D81/00; B65D81/34; B65D81/3446; B32B2255/00; B32B2255/10; B32B2255/20; B32B2255/205; B32B2439/00; B32B2439/40; B32B2439/70; B65D2581/00; B65D2581/34; B65D2581/3401; B65D2581/3402; B65D2581/3421; B65D2581/3437; B65D2581/3463; B65D2581/3467; B65D2581/3471; B65D2581/3472; B65D2581/3486; B65D2581/3494

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 42 words
A laminate, characterized by a layer of metallized flexible polymeric material which has been demetallized to provide at least one discrete metallized region on one surface thereof with the remainder of the surface demetallized, and at least one layer of other material.
Claim 2
Dependent Claim 42 words
A laminate, characterized by a layer of metallized flexible polymeric material which has been demetallized to provide at least one discrete metallized region on one surface thereof with the remainder of the surface demetallized, and at least one layer of other material.
Claim 3
Dependent Claim 23 words
The laminate claimed in claim 1, characterized in that the polymeric material layer is sandwiched between two outer layers of the other material.
Claim 4
Dependent Claim 23 words
The laminate claimed in claim 1 or 2, characterized in that the other material is relatively-stiff paper, rigid card or flexible polymeric material.
Claim 5
Dependent Claim 30 words
The laminate claimed in any one of claims 1 to 3, characterized in that the flexible polymeric material layer is formed by selective demetallization of a web of such material.
Claim 6
Dependent Claim 27 words
The laminate claimed in any one of claims 1 to 4, characterized by being formed into a foodstuff container for heating by the application of microwave energy.
Claim 7
Independent Claim 84 words
A method of forming a laminate for use in packaging, characterized by feeding a web of flexible metallized polymeric material through a demetallizing station wherein the metal is removed from selected portions of the metallized surface of the web to leave discrete longitudinally-spaced metallized regions along the length of the web, and passing the demetallized web through a laminating station wherein the demetallized web is laminated with at least one web of flexible material to form a laminate suitable for formation of package therefrom.
Claim 8
Independent Claim 84 words
A method of forming a laminate for use in packaging, characterized by feeding a web of flexible metallized polymeric material through a demetallizing station wherein the metal is removed from selected portions of the metallized surface of the web to leave discrete longitudinally-spaced metallized regions along the length of the web, and passing the demetallized web through a laminating station wherein the demetallized web is laminated with at least one web of flexible material to form a laminate suitable for formation of package therefrom.
Claim 9
Dependent Claim 33 words
The method claimed in claim 6, characterized in that the laminate is passed through a forming station wherein the laminate is formed into a packaging material suitable for heating food by microwave energy.
Claim 10
Independent Claim 77 words
A method of cooking by the application of microwave energy, characterized by enclosing a foodstuff capable of being heated by microwave energy in a package which is constructed at least in part of a flexible polymeric film having a discrete metallized region adjacent the foodstuff, and applying microwave energy to the package and the foodstuff therein while the discrete metallized region is located on the opposite side of the foodstuff from the source of the microwave energy.
Claim 11
Independent Claim 77 words
A method of cooking by the application of microwave energy, characterized by enclosing a foodstuff capable of being heated by microwave energy in a package which is constructed at least in part of a flexible polymeric film having a discrete metallized region adjacent the foodstuff, and applying microwave energy to the package and the foodstuff therein while the discrete metallized region is located on the opposite side of the foodstuff from the source of the microwave energy.
Claim 12
Dependent Claim 45 words
The method claimed in claim 8, characterized in that the flexible polymeric film is provided by selective demetallization of a metallized polymeric film and the flexible polymeric film is employed in the form of a laminate with two outer relatively-stiff paper layers in the package.
Claim 13
Dependent Claim 36 words
The method claimed in claim 8 or 9, characterized in that the foodstuff comprises popping corn and the package has a sufficient volume to accommodate the corn when popped by the application of the microwave energy.

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