Battery peel off assembly for exposing a safety feature comprising an aversive agent

Patent metadata

Field	Value
Publication number	US-11355822-B2
Application number	US-202016750961-A
Country	US
Kind code	B2
Filing date	Jan 23, 2020
Priority date	Jan 23, 2020
Publication date	Jun 7, 2022
Grant date	Jun 7, 2022

Abstract

A peel off assembly for exposing a safety feature comprising an aversive agent for a battery includes a first adhesive layer adhered to a base layer. Optionally, a layer comprising a colorant is disposed over and coupled to the first adhesive layer. A layer comprising a water-soluble material and an aversive agent is disposed over and coupled to the first adhesive layer. A second adhesive layer is disposed over and coupled to the layer comprising a water-soluble material. A kill strip layer is disposed between the second adhesive layer and the base layer. Optionally, a label is disposed over and coupled to the second adhesive layer. The second adhesive layer is adapted and arranged to release from the layer comprising the water-soluble material, when a peel force is applied such that the second adhesive layer and the kill strip layer are removable from the layer comprising a water-soluble material when the peel force is applied to the second adhesive layer.

First claim

What is claimed is:

1. A peel off assembly for exposing a safety feature comprising an aversive agent for a battery, the peel off assembly comprising:
a first adhesive layer adhered to a base layer;
optionally, a layer comprising a colorant disposed over and coupled to the first adhesive layer;
a layer comprising a water-soluble material and an aversive agent disposed over and coupled to the first adhesive layer;
a second adhesive layer disposed over and coupled to the layer comprising a water-soluble material; and
a kill strip layer disposed between the second adhesive layer and the base layer;
optionally, a label disposed over and coupled to the second adhesive layer,
wherein the second adhesive layer is adapted and arranged to release from the layer comprising the water-soluble material, when a peel force is applied such that the second adhesive layer and the kill strip layer are removable from the layer comprising a water-soluble material when the peel force is applied to the second adhesive layer.

2. The peel off assembly of to claim 1 , wherein the label is present.

3. The peel off assembly of claim 2 , wherein the base layer comprises a plastic film, a coated paper sheet, a laminate, or a combination thereof.

4. The peel off assembly of claim 2 , wherein the base layer comprises a battery pole.

5. The peel off assembly of claim 4 , wherein the base layer comprises a negative terminal of a battery.

6. The peel off assembly of claim 1 , wherein the layer comprising a colorant is present and the colorant comprises a dye, a pigment, a polymeric dye, or a combination thereof.

7. The peel off assembly of claim 1 , wherein there are no additional layers between the kill strip layer and the base layer.

8. The peel off assembly of claim 1 , wherein the aversive agent comprises a bitterant.

9. The peel off assembly of claim 1 , further comprising a battery having a pole, the pole having a first inner portion and a second outer portion, and wherein the first adhesive layer is coupled to the second outer portion.

10. The peel off assembly of claim 9 , wherein the second outer portion comprises an annular shape and the layer comprising a water-soluble material has the shape of an annular sector.

11. The peel off assembly of claim 10 , wherein the annular sector has an angle that is less than or equal to 180 degrees.

12. The peel off assembly of claim 9 , wherein the first inner portion comprises a no print zone of the battery pole.

13. The peel off assembly of claim 12 , wherein first inner portion has a circular shape comprising a diameter of about 11 mm or less.

14. The peel off assembly of claim 1 , wherein the kill strip layer comprises the shape of a circular segment.

15. The peel off assembly of claim 14 , wherein the circular segment comprises an arc of less than 180 degrees.

16. The peel off assembly of claim 15 , wherein the kill strip layer comprises an area that is equal to or less than one half of an area of the second adhesive layer.

17. The peel off assembly of claim 1 , wherein the first adhesive layer comprises a high surface energy acrylic adhesive.

18. The peel off assembly of claim 17 , wherein the first adhesive layer is substantially free of polyvinyl alcohol.

19. The peel off assembly of claim 1 , wherein the second adhesive layer comprises a solvent acrylic adhesive.

20. The peel off assembly of claim 1 , wherein the layer comprising a colorant comprises a water based ink.

21. The peel off assembly of claim 20 , wherein the water based ink comprises a black dye.

22. The peel off assembly of claim 1 , wherein the kill strip layer comprises a non-metalized polyester.

23. The peel off assembly of claim 1 , wherein the water-soluble material comprises between about 200 ppm and 20000 ppm Denatonium Benzoate.

24. A battery safety system comprising:
a battery having a can, a first terminal and a second terminal; and
a peel off assembly for exposing a safety feature comprising an aversive agent, the peel off assembly including a first adhesive layer adhered to one of the first or second terminals; optionally, a layer comprising a colorant disposed over and coupled to the first adhesive layer; a layer comprising a water-soluble material and an aversive agent disposed over and coupled to the first adhesive layer; a second adhesive layer disposed over and coupled to the layer comprising a water-soluble material; a kill strip layer disposed between the second adhesive layer and the one of the first and second terminals, and, optionally, a label disposed over and coupled to the second adhesive layer, wherein the second adhesive layer is adapted and arranged to release from the layer comprising a water-soluble material when a peel force is applied thereto such that the second adhesive layer and the kill strip layer are removable from the layer comprising a water-soluble material.

Assignees

• Duracell Us Operations Inc

Inventors

• Hawa Azmi
• Tse Jonathan
• Schmitz Rolf

Classifications

• B32B27/36

  comprising polyesters · CPC title

• H01M50/16

  Organic material · CPC title

• B32B7/06

  permitting easy separation · CPC title

• C09J2400/226

  in the substrate · CPC title

• B32B29/00

  Layered products comprising {a layer of} paper or cardboard · CPC title