Polymer-coated oven board and food package made from it

US9409697B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9409697-B2
Application numberUS-52687608-A
CountryUS
Kind codeB2
Filing dateDec 19, 2008
Priority dateDec 20, 2007
Publication dateAug 9, 2016
Grant dateAug 9, 2016

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A polymer-coated oven board includes a coating that contains an oxygen barrier layer of polyamide (PA) and a surface layer of polyethylene terephthalate (PET) adhered to the oxygen barrier layer. These layers are produced onto the board by co-extrusion without a binding agent layer between them. The weight of the PA oxygen barrier layer is 3-15 g/m 2 , and the weight of the PET surface layer is 20-50 g/m 2 . An oxygen impermeable food package heatable in an oven includes the oven board wherein the superimposed polyamide and PET layers are located inside the board layer in the package. The oven board may also include a PET surface layer on the opposite side of the board. Polyamide has been selected so that it withstands heat sealing and the heating of the package in an oven.

First claim

Opening claim text (preview).

The invention claimed is: 1. A polymer-coated oven board comprising a coextruded coating, wherein said coextruded coating consists of both (i) an oxygen barrier layer consisting of polyamide (PA) directly adhered to said oven board and (ii) a surface layer of polyethylene terephthalate (PET) directly adhered to the oxygen barrier layer, without a binding agent layer between said PA oxygen barrier layer and said PET surface layer, wherein the weight of the PA oxygen barrier layer is 3-15 g/m 2 and the weight of the PET surface layer is 20-50 g/m 2 . 2. The oven board according to claim 1 , further comprising a PET surface layer on the opposite side of the board. 3. The oven board according to claim 1 , wherein the oxygen barrier layer is made of high-barrier polyamide (HBPA). 4. The oven board according to claim 1 , wherein the weight of the polyamide layer is 5-10 g/m 2 . 5. The oven board according to claim 1 , wherein the weight of the PET layer against the polyamide layer is 30-40 g/m 2 . 6. An oxygen impermeable food package heatable in an oven, comprising the oven board according to claim 1 wherein the superimposed polyamide and PET layers are located inside the board layer in the package.

Assignees

Inventors

Classifications

  • Oxygen barrier · CPC title

  • Heat sealable · CPC title

  • Rigid containers, e.g. trays, bottles, boxes, cups · CPC title

  • characterised by {at least one} layer folded at the edge, e.g. over another layer {; characterised by at least one layer enveloping or enclosing a material} · CPC title

  • Water vapor barrier · CPC title

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What does patent US9409697B2 cover?
A polymer-coated oven board includes a coating that contains an oxygen barrier layer of polyamide (PA) and a surface layer of polyethylene terephthalate (PET) adhered to the oxygen barrier layer. These layers are produced onto the board by co-extrusion without a binding agent layer between them. The weight of the PA oxygen barrier layer is 3-15 g/m 2 , and the weight of the PET surface layer is…
Who is the assignee on this patent?
Kauri Tommi, Penttinen Tapani, Nevalainen Kimmo, and 1 more
What technology area does this patent fall under?
Primary CPC classification B65D81/343. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Aug 09 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).