Fire-stopping product
AssigneeTremco Cpg UK Limited
InventorsGary Pullinger, Andrew Taylor, Simon Jones
Life of this patent
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Abstract
The invention provides a fire-stopping product, an insulated building façade comprising a fire-stopping product, and a method of making a fire-stopping product. The fire-stopping product comprises a resilient, porous material at least partially impregnated with an intumescent agent and held in compression by a releasable restraint. When exposed to hot gases from a fire, the restraint yields to release the resilient, porous material in an initial expansion, thereby exposing the intumescent agent to the hot gases and allowing rapid intumescence to occur. When implemented in a ventilated building façade, the fire-stopping product is able to close an air gap in a short amount of time.
Claims30
A fire-stopping product comprising a resilient, porous material at least partially impregnated with an intumescent agent,
- wherein the resilient, porous material is held in compression by a releasable restraint,
- wherein the restraint yields on exposure to heat or flames.
An insulated building façade comprising an external wall and a cladding layer substantially parallel to the external wall, wherein the external wall and the cladding layer define an air gap there between,
- wherein a fire-stopping product is disposed within the air gap and is attached to a part of a face of the cladding layer or a face of the external wall and is expandable to fill the distance between the cladding and the thermal insulation when contacted with the heat of a fire,
- wherein the fire-stopping product comprises a resilient, porous material at least partially impregnated with an intumescent agent,
- wherein the resilient, porous material is held in compression by a releasable restraint, and wherein the restraint is released by melting or softening on exposure to hot gases from a fire.
A method of manufacturing a fire-stopping material comprising the steps:
- a. providing a resilient, porous material;
- b. providing a solution of an intumescent agent;
- c. impregnating the resilient, porous material with the solution;
- d. drying the solution, thereby removing liquid;
- e. compressing the resilient, porous material;
- f. constraining the resilient, porous material in its compressed state with a restraint.
Dependencies are inferred from the claim text.