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Fire protective flexible composite insulating system
| Details |
Inventors: Wilson, Vernon H.;
Assignee: Minnesota Mining and Manufacturing Company (Saint Paul, MN)
Primary Examiner: Raimund; Christopher W.
Assistant Examiner:
Attorney, Agent or Firm: Griswold; Gary L., Kirn; Walter N., Trussell; James J.
Flexible composite materials which are suitable for use as fire barriers for either static or dynamic joints are cost effective and easy to install. In one preferred embodiment the flexible composite includes (a) a first layer material having first and second major surfaces, the first layer material including inorganic fibers and a binder in the form of a flexible mat; (b) a second layer material adhered to the first major surface of the first layer material, the second layer material consisting essentially of metal foil, the second layer material having a melting temperature of at least about 350.degree. C.; and (c) a third layer adhered to the second major surface of the first layer material, the third layer material including an intumescent fire retardant composite material. |
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DETAILED DESCRIPTION What is claimed is: 1.
A system for thermally insulating and fire-proofing an exterior wall and an exterior wall/floor joint of a building wherein the wall comprises mullion and exterior sheet material, and wherein the floor includes an exterior butt end facing the wall and wherein the floor comprises a material which is rigid at room temperatures but experiences sagging due to its weight at fire temperatures, the system for thermally insulating and fire-proofing the exterior wall and the exterior wall/floor joint comprising: an insulating component, a sating component, and a fire barrier component, wherein: (a) the insulating component is positioned substantially within the shape defined by the mullion upon attachment to the mullion and having interior and exterior facing surfaces, the insulating component comprising an inorganic material capable of providing thermal insulation for the building; (b) the sating component is positioned substantially between the exterior butt end of the floor and the insulating component; and (c) the fire barrier component comprises a flexible composite sheet comprising: (i) a first layer having first and second major surfaces, the first layer comprising inorganic fibers and a binder in the form of a flexible mat; and (ii) a second layer adhered to the first major surface of the first layer, the second layer consisting essentially of metal foil adhered to the first layer by an adhesive, the second layer having a melting point of at least about 350.
degree.
C.
; and the fire barrier component having first and second portions, the first portion positioned adjacent and substantially parallel to the insulating component, and the second portion positioned substantially above the sating component in a curved fashion, the second portion having first and second ends, the first end attached to the top surface of the floor and the second end attached to the first portion, and the first portion of the fire barrier attached to the mullion, wherein the second portion has at least one curved portion which provides slack, thus allowing the fire barrier component to remain intact during relative movement of the wall and floor
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