Fire stop article

Details Fire stop article Fire stop article

2006-03-28

2006-03-28

Ryan, Patrick Joseph (Department: 1745)

Stock material or miscellaneous articles

Sheet including cover or casing

Complete cover or casing

C428S181000, C428S920000, C428S921000, C428S345000, C052S232000, C052S273000, C052S309100, C052S404100, C052S783100, C052S787110

Reexamination Certificate

active

07018699

ABSTRACT:
A composite fire stopping article capable of fire stopping through-penetrations without the need for a secondary reinforcement structure includes an interior insulating material, such as mineral wool, sandwiched between layers of an intumescent material. The insulating material and intumescent material may be enclosed in a bag formed of a polymeric material. The intumescent material is substantially free of graphite and consists essentially of filler material, binder material, and a hydrated alkali metal silicate intumescent component.

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