Compositions
US-2021053007-A1 · Feb 25, 2021 · US
Packaging films
US11577903B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11577903-B2 |
| Application number | US-201816604364-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 10, 2018 |
| Priority date | Apr 11, 2017 |
| Publication date | Feb 14, 2023 |
| Grant date | Feb 14, 2023 |
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- Title
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Abstract
Official abstract text for this publication.
A packaging film is described comprising at least one polymer film layer in which particles of a small-pore or a medium-pore palladium-doped zeolite are dispersed. Such films are of particular utility for the adsorption of volatile organic compounds, such as those originating from organic matter.
First claim
Opening claim text (preview).
The invention claimed is: 1. A packaging film for the adsorption of volatile organic compounds comprising at least one polymer film layer, wherein particles of a small-pore or a medium-pore palladium-doped zeolite are dispersed in the polymer film layer, and wherein the palladium-doped zeolite is in the hydrogen form. 2. The packaging film according to claim 1 wherein the polymer film layer comprises a polymer selected from an ethylene vinyl acetate co-polymer, a low-density polyethylene, a polypropylene, or a high impact polystyrene. 3. The packaging film according to claim 1 wherein the zeolite has a framework type that is chabazite. 4. The packaging film according to claim 1 wherein the polymer film layer comprises 1 to 10 wt % of said palladium-doped zeolite. 5. The packaging film according to claim 1 wherein said palladium-doped zeolite comprises 0.2 to 2 wt % palladium based on the total weight of said palladium-doped zeolite. 6. The packaging film according to claim 1 wherein the polymer film layer has a thickness of 5 to 30 μm. 7. The packaging film according to claim 1 wherein the palladium-doped zeolite particles have a particle size (d50) between 5 and 10 μm. 8. The packaging film according to claim 1 consisting essentially of the polymer film layer. 9. The packaging film according to claim 1 comprising a gas permeable barrier layer. 10. A packaging structure comprising a film according to claim 1 . 11. A method of adsorbing volatile organic compounds originating from organic matter using a packaging film according to claim 1 . 12. The method according to claim 11 wherein the volatile organic compound is ethylene.
Assignees
Inventors
Classifications
in which an absorbent is placed or used (packages for foodstuffs with provision for absorbing fluids B65D81/26) · CPC title
Moulding, shaping or extruding · CPC title
Volatile organic compounds V.O.C.'s · CPC title
- B01J20/186Primary
Chemical treatments in view of modifying the properties of the sieve, e.g. increasing the stability or the activity, also decreasing the activity · CPC title
characterized by a silicon-aluminium ratio · CPC title
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Frequently asked questions
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- What does patent US11577903B2 cover?
- A packaging film is described comprising at least one polymer film layer in which particles of a small-pore or a medium-pore palladium-doped zeolite are dispersed. Such films are of particular utility for the adsorption of volatile organic compounds, such as those originating from organic matter.
- Who is the assignee on this patent?
- Johnson Matthey Plc
- What technology area does this patent fall under?
- Primary CPC classification B01J20/186. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Feb 14 2023 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).