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Heat sealable packaging material with improved hot tack
US9211673B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9211673-B2 |
| Application number | US-201314143171-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 30, 2013 |
| Priority date | Feb 1, 2010 |
| Publication date | Dec 15, 2015 |
| Grant date | Dec 15, 2015 |
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Abstract
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A method of forming a package includes depositing polyvinylidene chloride on a substrate, wherein the substrate comprises paper, drying the polyvinylidene chloride on the substrate to form a packaging material including less than 5 wt % water, applying water to the packaging material so that the packaging material includes at least about 8 wt % water, and bringing a first portion of the polyvinylidene chloride of the packaging material into contact with a second portion of the polyvinylidene chloride of the packaging material in the presence of heat to form a seal. The at least about 8 wt % water is operative for increasing a hot tack of the seal relative to the packaging material including less than 5 wt % water.
First claim
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What is claimed is: 1. A method of forming a package, the method comprising: depositing polyvinylidene chloride on a substrate, wherein the substrate comprises paper; drying the polyvinylidene chloride on the substrate to form a packaging material, wherein drying the polyvinylidene chloride on the substrate comprises drying the polyvinylidene chloride on the substrate so that the polyvinylidene chloride and the substrate each comprise less than 5 wt % water; applying water to…
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Frequently asked questions
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- What does patent US9211673B2 cover?
- A method of forming a package includes depositing polyvinylidene chloride on a substrate, wherein the substrate comprises paper, drying the polyvinylidene chloride on the substrate to form a packaging material including less than 5 wt % water, applying water to the packaging material so that the packaging material includes at least about 8 wt % water, and bringing a first portion of the polyvin…
- Who is the assignee on this patent?
- Graphic Packaging Int Inc
- What technology area does this patent fall under?
- Primary CPC classification B29C66/01. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Dec 15 2015 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).