Fire resistant plastic pallet

• US 20060011108A1
• Filed: 07/13/2004
• Published: 01/19/2006
• Est. Priority Date: 07/13/2004
• Status: Abandoned Application

• Current Assignee: Delphi Technologies, Inc. (BorgWarner Incorporated)
• Original Assignee: Delphi Technologies, Inc. (BorgWarner Incorporated)
• Inventors: Marczewski, Richard W., Abu-Isa, Ismat A.
• Application Number:
  US10/890,351
• Publication Number:
  US 20060011108A1
• Time in Patent Office: Days
• US Class Current: 108/57.250
• CPC Class Codes: B32B 27/18 characterised by the use of special additives
• CPC Class Codes: B65D 19/18 made wholly or mainly of plastics material
• CPC Class Codes: B65D 2519/00044 Combination, e.g. different elements made of different materials, laminates
• CPC Class Codes: B65D 2519/00079 Combination, e.g. different elements made of different materials, laminates
• CPC Class Codes: B65D 2519/00114 Combination, e.g. different elements made of different materials, laminates
• CPC Class Codes: B65D 2519/00149 Combination, e.g. different elements made of different materials, laminates
• CPC Class Codes: B65D 2519/00184 Combination, e.g. different elements made of different materials, laminates
• CPC Class Codes: B65D 2519/00218 Combination, e.g. different elements made of different materials, laminates
• CPC Class Codes: B65D 2519/00253 Combination, e.g. different elements made of different materials, laminates
• CPC Class Codes: B65D 2519/0086 Protection against environmental hazards, e.g. humidity, bacteria, fire

Abstract

A fire resistant plastic pallet comprises greater than or equal to 65 wt. % high density polyethylene; and a sufficient amount of intumescence additive material to impart fire resistant properties to the fire resistant plastic pallet such that the fire resistant plastic pallet is capable of passing a fire test standard consistent with UL 2335, wherein weight percents are based on a total weight of the fire resistant plastic pallet.

Claims

1. A fire resistant plastic pallet, comprising:

greater than or equal to 65 wt. % high density polyethylene; and

a sufficient amount of intumescence additive material to impart fire resistant properties to the fire resistant plastic pallet such that the fire resistant plastic pallet is capable of passing a fire test standard consistent with UL 2335, wherein weight percents are based on a total weight of the fire resistant plastic pallet.

2. The fire resistant plastic pallet of claim 1, wherein the high density polyethylene is present in an amount of 65 wt. % to about 80 wt. %.

3. The fire resistant plastic pallet of claim 1, wherein the intumescence additive material is present in an amount of about 10 wt. % to about 35 wt. %.

4. The fire resistant plastic pallet of claim 3, wherein the intumescence additive material is present in an amount of about 20 wt. % to about 35 wt. %.

5. The fire resistant plastic pallet of claim 1, wherein the intumescence additive material is selected from the group consisting of a gas-generating foaming agent, a char-forming agent, a filler, and combinations comprising at least one of the foregoing materials.

6. The fire resistant plastic pallet of claim 5, wherein the gas-generating foaming agent is selected from the group consisting of ammonium dihydrogen phosphate, ammonium polyphosphate, and combinations comprising at least one of the foregoing materials.

7. The fire resistant plastic pallet of claim 5, wherein the gas-generating foaming agent is selected from the group consisting of hydrated alumina, hydrated magnesia, melamine, and combinations comprising at least one of the foregoing materials.

8. The fire resistant plastic pallet of claim 5, wherein the char forming agent is selected from the group consisting of monopentaerythritol, dipentaerythritol, and combinations comprising at least one of the foregoing materials.

9. The fire resistant plastic pallet of claim 1, wherein the intumescence additive material further comprises antimony oxide, zinc borate, and combinations comprising at least one of the foregoing materials.

10. The fire resistant plastic pallet of claim 1, wherein the fire resistant plastic pallet is made of a fire resistant blend of the high density polyethylene and the intumescence additive material.

11. The fire resistant plastic pallet of claim 1, wherein the fire resistant plastic pallet is a fire resistant laminate.

12. The fire resistant plastic pallet of claim 11, wherein the fire resistant laminate comprises an intumescent plastic layer disposed on a first side of a non-intumescent polymer layer.

13. The fire resistant plastic pallet of claim 12, wherein the fire resistant laminate further comprises an adhesive layer disposed between the intumescent plastic layer and the non-intumescent polymer layer.

14. The fire resistant plastic pallet of claim 13, wherein the fire resistant laminate further comprises a second intumescent plastic layer disposed on a second side of the non-intumescent polymer layer.

15. The fire resistant plastic pallet of claim 12, wherein the non-intumescent layer has a thickness about 1.5 times to 2.5 times a thickness of the intumescent plastic layer.

16. A fire resistant plastic pallet, comprising:

about 65 wt. % to about 80 wt. % high density polyethylene;

about 20 wt. % to about 35 wt. % intumescence additive material, wherein the intumescence additive material comprises a gas-generating foaming agent, a char-forming agent, and a filler; and

wherein weight percents are based on a total weight of the fire plastic resistant pallet.

17. The fire resistant plastic pallet of claim 16, wherein the gas-generating foaming agent is selected from the group consisting of ammonium dihydrogen phosphate, ammonium polyphosphate, and combinations comprising at least one of the foregoing materials.

18. The fire resistant plastic pallet of claim 16, wherein the gas-generating foaming agent is selected from the group consisting of hydrated alumina, hydrated magnesia, melamine, and combinations comprising at least one of the foregoing materials.

19. The fire resistant plastic pallet of claim 16, wherein the char forming agent is selected from the group consisting of monopentaerythritol, dipentaerythritol, and combinations comprising at least one of the foregoing materials.

20. The fire resistant plastic pallet of claim 16, wherein the intumescence additive material further comprises antimony oxide, zinc borate, and combinations comprising at least one of the foregoing materials.