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Fire resistant composite intermediate bulk container

  • US 5,924,589 A
  • Filed: 07/21/1997
  • Issued: 07/20/1999
  • Est. Priority Date: 07/21/1997
  • Status: Expired due to Term
First Claim
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1. An improved intermediate bulk container of the type comprising a plastic inner container and a protective structural metal cage surrounding the plastic inner container and comprising a series of bars with openings therebetween, at least some of the bars of the cage being in contact with the plastic inner container, the improvement comprising:

  • an intumescent coating which coats the bars of the metal cage but does not close the openings therebetween, wherein the intumescent coating, when exposed to fire, expands and forms a char on the bars of the metal cage, thereby preventing the metal cage from melting the plastic inner container along those portion of the metal cage in contact with the plastic inner container.

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