Fire resistant plastic pallet

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.

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.