IP Library Granted Patent US 12,358,701
Granted Patent B2
US 12,358,701 · App. 17/295,816 · Granted Jul 15, 2025

Tray composite and package

Inventors: Hanna-Mari Lahti (Lempäälä, FI); Kaisa P. Putkisto (Tampere, FI)
Assignee: Amcor Flexibles North America, Inc.
B65D65/40B32B1/00B32B7/06B32B27/08B32B27/10B32B27/32B32B27/34B32B27/36B65D1/34B65D75/305B65D81/343B32B2307/718B32B2307/7244B32B2307/7246B32B2307/748B32B2439/02B32B2439/70
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Quick Facts
Patent No.
US 12,358,701
App. No.
17/295,816
Granted
Jul 15, 2025
Kind
B2
Abstract

A tray composite comprises a polymeric based liner including an exterior surface layer, an interior surface layer, and a fiber based component removably affixed to the interior surface layer of the polymeric based liner. A release agent is located between the polymeric based liner and the fiber based component. The polymeric based liner and the fiber based component are manually separable after they have been removably affixed together.

Claims (26)

1. A tray composite that comprises:

a) a polymeric based liner comprising:

i) an exterior surface layer;

ii) an interior surface layer; and

iii) the exterior surface layer comprising first exterior surface of the tray composite;

b) a fiber based component comprising second exterior surface of the tray composite and removably affixed to the interior surface layer of the polymeric based liner; and

c) a release agent located between the polymeric based liner and the fiber based component, and the polymeric based liner and the fiber based component are manually separable after they have been removably affixed together.

2. The tray composite of claim 1 , wherein the polymeric based liner further comprises at least one inner layer located between the exterior surface layer and the interior surface layer.

3. The tray composite of claim 2 , wherein the at least one inner layer comprises a barrier layer.

4. The tray composite of claim 1 , wherein the fiber based component is a formable paper.

5. The tray composite of claim 1 , wherein a force to separate the polymeric based liner and the fiber based component is at least 10 N/m and no more than 500 N/m.

6. The tray composite of claim 5 , wherein the force to separate the polymeric based liner and the fiber based component is at least 30 N/m and no more than 450 N/m.

7. The tray composite of claim 1 wherein the release agent is also located in one or more of the interior surface layer and the fiber based component.

8. The tray composite of claim 7 , wherein the release agent is located at an interface between the polymeric based liner and the fiber based component.

9. The tray composite of claim 8 , wherein the polymeric based liner and the fiber based component are manually separable at the interface.

10. The tray composite of claim 9 , wherein the polymeric based liner and the fiber based component are manually separable at substantially only the interface.

11. The tray composite of claim 8 , wherein the release agent is substantially located at the interface.

12. The tray composite of claim 1 wherein the release agent is part of a carrier substrate that is located between the polymeric based liner and the fiber based component.

13. The tray composite of claim 12 , wherein the carrier substrate is separate from the polymeric based liner and the fiber based component and affixed to one or both of them.

14. The tray composite of claim 12 , wherein the carrier substrate is patterned between the polymeric based liner and the fiber based component.

15. The tray composite of claim 14 , wherein the carrier substrate is patterned to cover 50% to 100% of a surface area where the fiber based component is adjacent to the interior surface layer.

16. The tray composite of claim 1 , wherein the polymeric based liner and the fiber based component are manually separable such that when separated 3% or less of a weight of the fiber based component remains affixed to the interior surface layer.

17. The tray composite of claim 1 , wherein the fiber based component is removably affixed to the interior surface layer across at least 90% of a surface area where the fiber based component is adjacent to the interior surface layer.

18. The tray composite of claim 17 , wherein the fiber based component is removably affixed to the interior surface layer across substantially all of the surface area where the fiber based component is adjacent to the interior surface layer.

19. The tray composite of claim 1 , wherein the composite is ovenable.

20. The tray composite of claim 19 , wherein the polymeric based liner is at least partially crosslinked.

Assignments (2)
CHANGE OF NAME Recorded Oct 25, 2022
From: BEMIS COMPANY, INC.
To: AMCOR FLEXIBLES NORTH AMERICA, INC.
Reel/Frame 061767/0571 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 20, 2021
From: LAHTI, HANNA-MARI; PUTKISTO, KAISA P.
To: BEMIS COMPANY, INC.
Reel/Frame 056306/0808 →
Continuity (1)
Related Publication 20220009683A1 · Jan 13, 2022
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