Cover window for flexible display device and flexible display device
US-12140831-B2 · Nov 12, 2024 · US
Barrier packaging webs having metallized non-oriented film
US8945702B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8945702-B2 |
| Application number | US-93203107-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 31, 2007 |
| Priority date | Oct 31, 2007 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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- Title
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Abstract
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The present invention provides flexible packaging webs comprising a non-oriented metallized sealant film characterized by a secant modulus of less than 120,000 psi and an elongation at break of greater than 150%, wherein the non-oriented metallized sealant film comprises (1) a thermoplastic base layer of a material selected from the group consisting of ethylene/vinyl alcohol copolymer, ethylene/acrylic acid copolymer, ethylene/norbornene copolymer, polyamide and blends thereof; (2) a metal coating deposited on the base layer and having an optical density of 1.0 to 3.0; and (3) a heat sealing layer. The packaging webs of the present invention each exhibit an oxygen gas transmission rate of between 0 to 10.0 cm 3 /100 in 2 /24 hours at 73° F. (0 to 155 cm 3 /m 2 /24 hours at 23° C.) and 0% relative humidity and a water vapor transmission rate of between 0 to 0.1 g/100 in 2 /24 hours at 100° F. (0 to 1.55 g/m 2 /24 hours at 38° C.) and 90% relative humidity. The sealant films are formed by a blown coextrusion method.
First claim
Opening claim text (preview).
What is claimed is: 1. A flexible packaging web (a) comprising a non-oriented sealant film characterized by a secant modulus of less than 120,000 psi and an elongation at break of greater than 150%, wherein the non-oriented sealant film is a coextruded blown film, wherein the non-oriented sealant film comprises a thermoplastic base layer of a material selected from the group consisting of ethylene/vinyl alcohol copolymer, ethylene/norbornene copolymer, ethylene/acrylic acid copoly…
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Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
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- What does patent US8945702B2 cover?
- The present invention provides flexible packaging webs comprising a non-oriented metallized sealant film characterized by a secant modulus of less than 120,000 psi and an elongation at break of greater than 150%, wherein the non-oriented metallized sealant film comprises (1) a thermoplastic base layer of a material selected from the group consisting of ethylene/vinyl alcohol copolymer, ethylene…
- Who is the assignee on this patent?
- Wuest Sam Edward, Barr Curtis Randolph, Mussell Chris Scott, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification B32B27/28. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Feb 03 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).