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EP0287323A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Fibrous microwave susceptor packaging material

Assignee: EIDP Inc
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Filing: 1988-04-12
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Granted: —
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Expires: 2008-04-12
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Abstract

Abstract New composite materials useful for wrapping food items to be cooked by microwave energy comprise drapable, liquid permeable, woven or non-woven, fibrous dielectric substrates, which substrates, or fibers of which substrates, are coated and/or imbibed with one or more susceptor materials. The composite materials, when wrapped around a food item to be cooked by microwave energy, enhance the browning and/or crispening of the items.

Inventors

  • 👤 John Richard Fisher
  • 👤 Hua-Feng Huang

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-05 22:47
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/34; B65D81/3446; B65D2581/00; B65D2581/34; B65D2581/3437; B65D2581/3463; B65D2581/3464; B65D2581/3471; B65D2581/3472; B65D2581/3477; B65D2581/3478; B65D2581/3479; B65D2581/3486; B65D2581/3494; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2139; Y10T442/259; Y10T442/2607; Y10T442/2762; Y10T442/277; Y10T442/2861; Y10T442/2893; Y10T442/291; Y10T442/2918; Y10T442/2926; Y10T442/2992

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 87 words
Composite materials for wrapping around a food item to be cooked in a microwave oven comprising a drapable, liquid permeable, woven or non-woven, fibrous, dielectric substrate, which substrate, or fibers of which substrate, are coated and/or imbibed with one or more microwave susceptor materials, the amount of said susceptor material(s) being sufficient to generate adequate heat to rapidly brown or crispen the surface of food item adjacent thereto without substantially impeding the ability of the microwave energy to penetrate the susceptor material and cook the food item.
Claim 2
Dependent Claim 87 words
Composite materials for wrapping around a food item to be cooked in a microwave oven comprising a drapable, liquid permeable, woven or non-woven, fibrous, dielectric substrate, which substrate, or fibers of which substrate, are coated and/or imbibed with one or more microwave susceptor materials, the amount of said susceptor material(s) being sufficient to generate adequate heat to rapidly brown or crispen the surface of food item adjacent thereto without substantially impeding the ability of the microwave energy to penetrate the susceptor material and cook the food item.
Claim 3
Dependent Claim 43 words
Composite materials according to Claim 1 capable of absorbing or transmitting a substantial portion of the moisture evolved at the surface of the wrapped food item during cooking of said item, thereby enhancing the browning and crispening of the surface of said item.
Claim 4
Dependent Claim 29 words
Composite materials according to Claim 1 or Claim 2 which exhibit a moisture takeup of at least 0.5 mg/sq.cm and a moisture transmission rate of at least 50 mg/sq.cm/minute.
Claim 5
Dependent Claim 29 words
Composite materials according to Claim 1 or Claim 2 which exhibit a moisture takeup of at least 1.0 mg/sq.cm and a moisture transmission rate of at least 200 mg/sq.cm/minute.
Claim 6
Dependent Claim 33 words
Composite materials according to any one of Claims 1 to 4 where said substrate is made from fibers selected from cotton, cellulose, jute, hemp, acetate, fiberglass, nylon, polyester, aramid, polypropylene and other polyolefins.
Claim 7
Dependent Claim 23 words
Composite materials according to any one of Claims 1 to 4 where said substrate is paper or a woven cotton or fiberglass fabric.
Claim 8
Dependent Claim 26 words
Composite materials according to any one of Claims 1 to 6 where said susceptor materials are selected from aluminum, stainless steel, nickel/iron/molybdenum alloys and nickel/iron/copper alloys.
Claim 9
Dependent Claim 26 words
Composite materials according to any one of Claims 1 to 6 where said susceptor materials are selected from mono- and poly-saccharides and ionically conductive flavor agents.
Claim 10
Dependent Claim 18 words
Composite materials according to any one of Claims 1 to 6 where said susceptor material is aluminum flake.
Claim 11
Dependent Claim 26 words
Composite material according to any one of Claims 1 to 9 where said composite material is coated or imbibed with an aroma or flavor enhancing agent.
Claim 12
Dependent Claim 54 words
A method of making a composite material of Claim 1 or Claim 2 comprising applying said one or more susceptor materials to said woven or non-woven substrate or fibers thereof by a method selected from the group consisting of vacuum chemical vapor deposition, vacuum metallization, radio frequency sputtering, printing, and electrolytic processes or baths.
Claim 13
Dependent Claim 86 words
A method of cooking a food item with microwave energy and achieving browning and/or crispening of the surface of said food item comprising wrapping said food item in a composite material of Claim 1 or Claim 2 in such a way that said composite material conforms substantially to the shape of said food item and is substantially in contact with that portion of the surface of said food item which is desired to be browned and/or crispened, and exposing said wrapped food item to microwave energy.

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