IP Library › Granted Patent US 12,479,642
Granted Patent B2
US 12,479,642 · App. 18/462,855 · Granted Nov 25, 2025

Resealable container

Inventors: Eduard Boja (Winnipeg, CA); Christopher Dartiailh (Winnipeg, CA); Mustafa Bilgen (Fayettville, GA); James Imburgia (Delancey, NY); Bradley Ranville (Winnipeg, CA)
Assignee: Winpak Ltd.
B65D77/2096B29D22/003B65D1/34B65D43/0202B65D65/42B65D2565/387
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Quick Facts
Patent No.
US 12,479,642
App. No.
18/462,855
Granted
Nov 25, 2025
Kind
B2
Abstract

A container including a tray and a lidding film is provided. The lidding film is removably coupled to the tray and includes a breakable layer, a lidding layer coupled to the breakable layer, and a PSA layer. A reseal portion of the breakable layer is sealed to a flange of the tray. The PSA layer is arranged between the lidding layer and the breakable layer. The PSA layer includes a reseal portion to adhere to the reseal portion of the breakable layer. The reseal portion of the breakable layer separates from an inner portion when the container is initially opened such that the reseal portion of the breakable layer remains sealed to the flange and the inner portion of the breakable layer remains coupled to the lidding layer. The container is resealed by adhering the reseal portion of the PSA layer to the reseal portion of the breakable layer.

Claims (23)

1 . A resealable container, comprising:

a tray comprising a seal area; and

a lidding film removably coupled to the tray, the lidding film comprising:

a breakable layer comprising a reseal portion and an inner portion, wherein the reseal portion is separated from the inner portion by a break line, wherein the reseal portion of the breakable layer is sealed to the seal area of the tray, and wherein the reseal portion comprises a reseal surface;

a lidding layer coupled to the breakable layer; and

a pressure sensitive adhesive (PSA) layer arranged between the lidding layer and the reseal portion and the inner portion of the breakable layer, the PSA layer comprising a reseal portion configured to adhere to the reseal surface of the breakable layer and an inner portion corresponding to the inner portion of the breakable layer, wherein the reseal portion of the PSA layer is thinner than the inner portion of the PSA layer such that, when the lidding film is removed from the tray, the inner portion of the breakable layer remains coupled to the lidding layer while the reseal portion of the breakable layer remains sealed to the seal area of the tray; and

a tamper prevention portion, wherein the entire tamper prevention portion is positioned over the seal area;

wherein the reseal portion of the breakable layer is configured to separate from the inner portion of the breakable layer along the break line when the resealable container is initially opened such that the reseal portion of the breakable layer remains sealed to the seal area of the tray and the inner portion of the breakable layer remains coupled to the lidding layer; and

wherein the resealable container is configured to be resealed after opening by adhering the reseal portion of the PSA layer to the reseal surface of the breakable layer.

2 . The resealable container of claim 1 , wherein the breakable layer is coupled to the lidding layer via the inner portion of the PSA layer.

3 . The resealable container of claim 1 , wherein the PSA layer is a liquid coating.

4 . The resealable container of claim 1 , wherein the lidding layer and/or the breakable layer is configured to provide a moisture barrier and/or an oxygen barrier.

5 . The resealable container of claim 1 , wherein the tray is rigid, semirigid, or flexible.

6 . The resealable container of claim 1 , wherein the break line is formed via scoring or die cutting.

7 . The resealable container of claim 1 , wherein the PSA layer is an extruded resin layer at least partially embedded within the inner portion of the breakable layer.

8 . The resealable container of claim 1 , wherein the breakable layer and the PSA layer are coextruded as a single substrate.

9 . The resealable container of claim 1 , wherein the breakable layer, the PSA layer, and the lidding layer are coextruded as a single substrate.

10 . The resealable container of claim 1 , wherein the reseal portion of the breakable layer is sealed to the seal area of the tray via a heat seal.

11 . The resealable container of claim 1 , wherein the tray and the lidding film each comprise at least 80 percent of a material, and wherein the material is polyethylene, polypropylene, polyamide, polystyrene, polyvinyl chloride, polylactide, polyester, fiber-based, or starch-based.

12 . The resealable container of claim 1 , wherein the lidding film further comprises a first inks and/or adhesives layer arranged between the breakable layer and the lidding layer.

13 . The resealable container of claim 1 , further comprising a second lidding layer sealed to the lidding layer.

14 . The resealable container of claim 13 , wherein the lidding layer seals to the second lidding layer via a second inks and/or adhesives layer.

15 . The resealable container of claim 1 , wherein the lidding film further includes a second tamper prevention portion.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 31, 2024
From: BOJA, EDUARD; DARTIAILH, CHRISTOPHER; BILGEN, MUSTAFA; IMBURGIA, JAMES; RANVILLE, BRADLEY
To: WINPAK LTD.
Reel/Frame 068142/0016 →
Continuity (1)
Related Publication 20250083885A1 · Mar 13, 2025
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