Tray composite and package

Patent metadata

Field	Value
Publication number	US-12358701-B2
Application number	US-201817295816-A
Country	US
Kind code	B2
Filing date	Dec 27, 2018
Priority date	Dec 27, 2018
Publication date	Jul 15, 2025
Grant date	Jul 15, 2025

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.

First claim

What is claimed is:

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.

Assignees

• Amcor Flexibles North America Inc

Inventors

• Lahti Hanna-Mari
• Putkisto Kaisa P

Classifications

• B32B1/00

  Layered products having a non-planar shape · CPC title

• B65D81/343

  specially adapted to be heated in a conventional oven, e.g. a gas or electric resistance oven · CPC title

• B65D75/305

  Skin packages · CPC title

• B65D1/34

  Trays or like shallow containers {(B65D81/3813 takes precedence)} · CPC title

• B32B2439/70

  Food packaging · CPC title