Method of manufacturing a laminated packaging material, the packaging material obtained by the method and packaging containers manufactured therefrom
US-2019202191-A1 · Jul 4, 2019 · US
Packaging material and packaging container
US10994909B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10994909-B2 |
| Application number | US-201615779323-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 25, 2016 |
| Priority date | Nov 27, 2015 |
| Publication date | May 4, 2021 |
| Grant date | May 4, 2021 |
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- Title
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- Abstract
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- First independent claim
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Abstract
Official abstract text for this publication.
Described herein are laminated packaging materials comprising foamed cellulose, their use in manufacturing packaging containers, for use in packaging of food products.
First claim
Opening claim text (preview).
The invention claimed is: 1. A packaging material for a packaging container for liquid or semi-liquid food, the packaging material comprising a decor layer, a bulk layer on one side of the decor layer, a barrier layer on a side of the bulk layer opposite the decor layer, and a heat-sealable layer on a side of the barrier layer opposite the bulk layer so that the bulk layer is positioned between the decor layer and the barrier layer while the barrier layer is positioned between the bulk layer and the heat-sealable layer, the bulk layer having a density of at least 100 kg/m 3 and less than 700 kg/m 3 and being comprised of crosslinked foamed fibrous cellulose of at least 25% thickness of the bulk layer. 2. The packaging material according to claim 1 , wherein the packaging material has a delamination strength of 120-300 J/m 2 as determined in accordance with TAPPI T569. 3. A packaging container manufactured from a packaging material according to claim 1 , wherein the packaging container is a container for liquid or semi-liquid food product. 4. The packaging container according to claim 3 , wherein the packaging container is a brick shaped packaging container, a gable top packaging container, a wedged-shape packaging container, a square-, rectangular- or octagonal-based packaging container, or a pouch. 5. The packaging material according to claim 1 , wherein the bulk layer has a density from 300 kg/m 3 to 500 kg/m 3 . 6. The packaging material according to claim 1 , wherein the bulk layer has a density from 100 kg/m 3 to 600 kg/m 3 . 7. The packaging material according to claim 1 , wherein the fibrous cellulose is selected from the group consisting of chemical pulp fibers, chemi-thermomechanical pulp fibers, thermo-mechanical pulp fibers, and Kraft pulp fibers.
Assignees
Inventors
Classifications
- B32B5/02Primary
characterised by structural features of a {fibrous or filamentary} layer {(layer formed of metallic wires B32B15/02; layer formed of natural mineral fibres B32B19/02; layer formed of wood fibres B32B21/02)} · CPC title
Modifying agents · CPC title
Metallic coating · CPC title
using interposed adhesives or interposed materials with bonding properties · CPC title
of foam · CPC title
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Frequently asked questions
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- What does patent US10994909B2 cover?
- Described herein are laminated packaging materials comprising foamed cellulose, their use in manufacturing packaging containers, for use in packaging of food products.
- Who is the assignee on this patent?
- Tetra Laval Holdings & Finance
- What technology area does this patent fall under?
- Primary CPC classification B32B5/02. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue May 04 2021 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 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).