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EP0252597A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Smoking of film packaged food and packaging film used for this purpose
Assignee: Kureha Corp
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Filing: 1987-05-29
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Granted: —
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Expires: 2007-05-29
Abstract
Abstract A food-packaging film is formed of a polymer component comprising a polyamide resin, optionally blended with an olefin polymer, with 2 to 2O% of an additive which is compatible with the polymer component, is liquid at 7O to 95 DEG C and is soluble in water and/or oil. Food can be packaged in this film and smoked and subsequent steam-heating of the package causes the film to acquire good gas-barrier properties.
Inventors
- 👤 Nobuyuki Hisazumi
- 👤 Shinichiro Funabashi
- 👤 Yukihiro Ochiai
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 12:40
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; A; A23; A23B; A23B4/00; A23B4/044; A23B4/14; A23B4/16; B; B65; B65D; B65D65/00; B65D65/38; C08L77/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
74 words
A smokable food-packaging film formed of a composition comprising a polymer component comprising 3O to lOO% by weight of a polyamide resin and O to 7O% by weight of an olefin polymer, characterised in that the composition comprises 8O to 98% of the polymer component and 2 to 2O% by weight of an additive which is compatible with the polymer component, is liquid at 7O to 95°C, and is soluble in water and/or oil.
Claim 2
Dependent Claim
74 words
A smokable food-packaging film formed of a composition comprising a polymer component comprising 3O to lOO% by weight of a polyamide resin and O to 7O% by weight of an olefin polymer, characterised in that the composition comprises 8O to 98% of the polymer component and 2 to 2O% by weight of an additive which is compatible with the polymer component, is liquid at 7O to 95°C, and is soluble in water and/or oil.
Claim 3
Dependent Claim
35 words
A film according to claim l, wherein the polyamide resin is nylon 6, nylon 7, nylon 8, nylon ll, nylon l2, nylon 6-6, nylon 6-lO, a mixture thereof, or a copolymer of these monomeric compounds.
Claim 4
Dependent Claim
54 words
A film according to claim l or claim 2 wherein the polymer component comprises a blend of 3O to 95% polyamide resin with 7O to 5% olefin polymer which is preferably a polyolefin, an ionomer resin or a copolymer of an olefin with (meth) acrylic acid, alkyl (meth) acrylate, vinyl acetate or vinyl alcohol.
Claim 5
Dependent Claim
46 words
A film according to claim l in which the olefin is selected from polyethylene, polypropylene, ionomer resin, ethylene-vinyl acetate copolymer, ethylene-ethyl acrylate copolymer, ethylene-acrylic acid copolymer, ethylene-methyl acrylate copolymer, ethylene-methyl methacrylate copolymer, and ethylene-methacrylic acid copolymer and copolymers of vinyl alcohol with ethylene, propylene or butene-l.
Claim 6
Dependent Claim
41 words
A film according to any preceding claim in which the additive comprises a material selected from aliphatic alcohols, polyglycols, polyoxyethylene sorbitan fatty acid esters, polyhydric alcohol esters, aliphatic dibasic acid esters, polyvalent hydroxy-carboxylic acid esters, aliphatic acid esters and epoxy plasticisers.
Claim 7
Dependent Claim
19 words
A film according to any preceding claim in which the additive comprises glycerol, polyoxyethylene sorbitan monooleate or glycerol monostearate.
Claim 8
Dependent Claim
15 words
A film according to any preceding claim having a thickness of l5 to lOO µm.
Claim 9
Dependent Claim
38 words
A film according to any preceding claim in which the corresponding film formed from the component in the absence of the additive has an oxygen permeability of not more than 2OO, and preferably not more than 5O, cc/m².day.atm.
Claim 10
Independent Claim
47 words
A method in which a food product is packed, in a film according to any preceding claim and is then smoked by exposing the package at 4O to 8O°C to smoke ingredients that permeate the film and is then subjected to steam treatment at 7O to 95°C.
Claim 11
Dependent Claim
31 words
lO. A method according to claim 9 in which the oxygen permeability of the film after the steam treatment is not more than 2OO, and preferably not more than 5O, cc/m².day.atm.
Claim 12
Dependent Claim
27 words
A smoked food package comprising a foodstuff packaged within a film characterised in that the film is a film according to any of claims l to 8.
References Cited (Backward Citations)
No citation records indexed.
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