Repulpable container

Patent metadata

Field	Value
Publication number	US-11214427-B2
Application number	US-202017123673-A
Country	US
Kind code	B2
Filing date	Dec 16, 2020
Priority date	Aug 16, 2016
Publication date	Jan 4, 2022
Grant date	Jan 4, 2022

Abstract

A repulpable insulated container assembly having a container formed of paper such as corrugated cardboard or varying paper materials and defining an interior; and a repulpable insert placed within the interior of the container and formed of a first paper layer; and a paper fiber pad coupled to the first paper layer.

First claim

That which is claimed is:

1. A shipping container comprising:
a box formed of corrugated cardboard and defining an interior; and
a cellulose fiber pad coupled to positioned within an interior of the box, the cellulose fiber pad having cellulose reinforcement fibers interlocked with thermoplastic binder fibers distributed substantially randomly within the cellulose reinforcement fibers, the thermoplastic binder fibers making up about 0.5% to 25% by weight of the cellulose fiber pad, the cellulose fiber pad having a thickness that is at least about 1/16 of an inch, wherein subjecting the repulpable insulation liner to a repulpability test produces greater than 85% fiber yield.

2. The shipping container according to claim 1 , wherein the cellulose fiber pad is coupled to at least one surface of the box.

3. The shipping container according to claim 2 , wherein the cellulose fiber pad is directly coupled to the at least one surface of the corrugated cardboard.

4. The shipping container according to claim 1 , further comprising an intermediary paper layer disposed between the cellulose fiber pad and the corrugated cardboard, wherein the cellulose fiber pad is coupled to the intermediary paper layer.

5. The shipping container according to claim 4 , further comprising an adhesive layer disposed between the intermediary paper layer and the cellulose fiber pad, wherein the adhesive layer is at least one of recycling-compatible and water soluble.

6. The shipping container according to claim 4 , further comprising a second paper layer coupled to at least one of the cellulose fiber pad and the intermediary paper layer.

7. The shipping container according to claim 6 , wherein:
the second paper layer is coupled to the intermediary paper layer; and
the cellulose fiber pad is encapsulated between the intermediary paper layer and the second paper layer.

8. The shipping container according to claim 6 , wherein:
the intermediary paper layer is coupled to the cellulose fiber pad on a first side of the cellulose fiber pad, and
the second paper layer is coupled to the cellulose fiber pad on a second side of the cellulose fiber pad that is opposite of the first side.

9. The shipping container according to claim 1 , wherein the thermoplastic binder fibers make up about 10% by weight of the cellulose fiber pad.

10. The shipping container according to claim 1 , wherein the thermoplastic binder fibers are meltable PE/PP bi-component thermoplastic binder fibers.

11. The shipping container according to claim 1 , wherein the thermoplastic binder fibers have a plurality of different lengths.

12. The shipping container according to claim 11 , wherein a first portion of the thermoplastic binder fibers has a length of about 1 mm and a second portion of the thermoplastic binder fibers has a length of about 6 mm.

13. The shipping container according to claim 1 , wherein the thermoplastic binder fibers have a length of less than about 24 mm.

14. The shipping container according to claim 1 , wherein the cellulose fiber pad has a weight within a range from 1000 GSM to 1600 GSM.

15. The shipping container according to claim 1 , wherein the cellulose reinforcement fibers include at least one of paper fibers and cardboard fibers.

16. A shipping container comprising:
a box formed of corrugated cardboard and defining an interior; and
a repulpable insert placed within an interior of the box and formed of a first paper layer; and
a cellulose fiber pad coupled to the first paper layer, the cellulose fiber pad having cellulose reinforcement fibers interlocked with thermoplastic binder fibers distributed substantially randomly within the cellulose reinforcement fibers, the thermoplastic binder fibers making up about 0.5% to 25% by weight of the cellulose fiber pad, the cellulose fiber pad having a thickness that is at least about 1/16 of an inch, wherein subjecting the repulpable insulation liner to a repulpability test produces greater than 85% fiber yield.

17. The shipping container according to claim 16 , wherein the first paper layer is cardboard.

18. The shipping container according to claim 16 , wherein the first paper layer is recyclable paper.

19. The shipping container according to claim 16 , wherein the thermoplastic binder fibers make up about 10% by weight of the cellulose fiber pad.

20. The shipping container according to claim 16 , wherein the thermoplastic binder fibers are meltable PE/PP bi-component thermoplastic binder fibers.

21. The shipping container according to claim 16 , wherein the cellulose fiber pad has a weight of between 1300 and 1600 GSM.

22. The shipping container according to claim 16 , wherein the thermoplastic binder fibers have a plurality of different lengths.

23. The shipping container according to claim 22 , wherein a first portion of the thermoplastic binder fibers has a length of about 1 mm and a second portion of the thermoplastic binder fibers has a length of about 6 mm.

24. A shipping container comprising:
a box formed of corrugated cardboard and defining an interior; and
an insulation liner placed within the interior of the box and formed of a first paper layer;
a second paper layer coupled to the first paper layer to form an envelope; and
a cellulose fiber pad coupled to the first paper layer, the cellulose fiber pad having cellulose reinforcement fibers interlocked with thermoplastic binder fibers distributed substantially randomly within the cellulose reinforcement fibers, the thermoplastic binder fibers making up about 0.5% to 25% by weight of the cellulose fiber pad, the cellulose fiber pad having a thickness that is at least about 1/16 of an inch, wherein subjecting the repulpable insulation liner to a repulpability test produces greater than 85% fiber yield.

25. The shipping container according to claim 24 , wherein the cellulose fiber pad is coupled to the first paper layer.

26. The shipping container according to claim 25 , wherein the cellulose fiber pad is not coupled to the second paper layer other than through the coupling between the first and second paper layers and between the first paper layer and the paper fiber batt.

27. The shipping container according to claim 24 , wherein the cellulose fiber pad is not directly coupled to the second paper layer.

28. The shipping container according to claim 24 , wherein the thermoplastic binder fibers make up less than 10% by weight of the cellulose fiber pad.

29. The shipping container according to claim 28 , wherein the thermoplastic binder fibers make up about 10% by weight of the cellulose fiber pad.

30. The shipping container according to claim 28 , wherein the thermoplastic binder fibers are meltable PE/PP bi-component thermoplastic binder fibers.

Assignees

• Pratt Retail Specialties Llc

Inventors

• Collison Alan B
• Borgman Reid

Classifications

• B29K2311/12

  Paper, e.g. cardboard · CPC title

• B29K2301/12

  Thermoplastic materials · CPC title

• B29C70/08

  comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers · CPC title

• B65B11/08

  in a single straight path · CPC title

• B29L2031/712

  Containers; Packaging elements or accessories, Packages (closures therefor B29L2031/56; ink or toner cartridges B29L2031/7678; squeeze tubes B29L2023/20; suitcases B29L2031/7418) · CPC title