Granted Patent B2

US 12,409,993 · App. 17/161,885 · Granted Sep 9, 2025

Inventors: Matheus W. Riswick (Hollandsche Rading, NL); Stefan Juers (Lueneburg, DE); Brian W. Carlson (Woodbury, MN)

Assignee: H.B. Fuller Company

B65D71/0085

Abstract

Claims (26)

1. A container pack comprising:

a first group of containers,

a second group of containers, and

a single planar substrate,

wherein the first group of containers and the second group of containers each comprise at least one individual container, and

wherein the at least one individual container of the first group of containers and the at least one individual container of the second group of containers, are bonded by means of at least one spot of hot melt adhesive to opposing sides of the single planar substrate, the single planar substrate located between the first group of containers and the second group of containers,

wherein each spot of the hot melt adhesive, bonding the individual container of the first group of containers is on a different height than the spot of the hot melt adhesive on the opposite side of the single planar substrate, bonding the individual container of the second group of containers,

the single planar substrate being perforated such that each spot of the hot melt adhesive on the single planar substrate is enclosed by a perforation line,

a portion of the substrate within the perforated lines remains attached to the container once removed from the substrate.

2. The container pack of claim 1 , wherein the perforation line consists of cut lines and uncut lines, and wherein the sum of the cut lines occupies at least 40% of the total length of the perforation line.

3. The container pack of claim 2 , wherein the cut line has a length of 1.0 mm to 10 mm.

4. The container pack of claim 1 , wherein each of the perforation lines is in the form of a polygon.

5. The container pack of claim 4 , wherein the polygon is selected from the group consisting of a rectangle and a circle.

6. The container pack of claim 1 , wherein each of the individual containers has a total height consisting of an upper half and a bottom half, and wherein the at least one spot of the hot melt adhesive is present in the upper half of the total height of each of the individual containers.

7. The container pack of claim 6 , wherein at least one further spot of the hot melt adhesive is present in the bottom half of each of the individual containers.

8. The container pack of claim 1 , wherein the individual containers are rectangular cuboids comprising polyethylene.

9. The container pack of claim 1 , wherein the first group of containers and the second group of containers each comprise two to six of the individual containers.

10. The container pack of claim 1 , wherein each of the individual containers has a volume of 0.1 liters to 2.0 liters.

11. The container pack of claim 1 , wherein the contents of the individual containers is a food product.

12. The container pack of claim 1 , wherein the contents of the individual containers is a beverage.

13. The container pack of claim 1 , wherein the spots of the hot melt adhesive are selected from the group consisting of a line and a circular dot.

14. The container pack of claim 1 , wherein the amount of the hot melt adhesive per each spot is 0.1 g to 0.5 g.

15. The container pack of claim 1 , wherein the single planar substrate is selected from the group consisting of paperboard and plastic material.

16. The container pack of claim 1 wherein the single planar substrate is paperboard.

17. The container pack of claim 1 wherein the hot melt adhesive composition comprises a polymer selected from the group consisting of ethylene alpha olefin and ethylene polar comonomer.

18. The container pack of claim 1 wherein the container is a rectangular cuboid.

Assignments (2)

Continuity (2)

References Cited (15)