Fire-barrier film laminate
AssigneeUnifrax I LLC
InventorChad E. Garvey
Life of this patent
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Abstract
A fire-blocking paper (22, 52) is adapted for incorporation into a fire-barrier film laminate (16, 46) for use in thermal and acoustical insulation systems (10, 40), such as, but not limited to, those used in commercial aircraft. The fire-blocking inorganic fiber paper (22, 52) can be laminated to a flame resistant film (24a, 24b, 54a, 54b). The fire-blocking paper (22, 52) may include inorganic bio-soluble fiber, chopped glass non-respirable fibers, organic reinforcing fibers, organic binder, and inorganic binder or filler; and, optionally or refractory ceramic fibers.
Claims20
A fire-blocking paper adapted for incorporation into a fire-barrier film, the paper comprising inorganic bio-soluble fiber, chopped glass non-respirable fiber, organic reinforcing fiber, organic binder, and inorganic binder or filler;
- and, optionally refractory ceramic fiber.
A thermal acoustic insulation system having a basis weight of less than about 120 g/m2 capable of passing the flame propagation and burn-through resistance test protocols of 14 CFR §25.856(a) and (b), Appendix F, Parts VI and VII, comprising:
- two layers of about 1 inch thick fiberglass insulation partially or substantially totally enveloped or encapsulated with a fire-barrier laminate;
- the fire barrier laminate comprising a fire-blocking paper having an outboard surface and an inboard surface, adhesively laminated between a first sheet of flame resistant film and a second sheet of flame resistant film using an adhesive optionally substantially free of fire retardant additives, wherein the first sheet of flame resistant film is proximate to the outboard surface of the fire-blocking paper and is metallized, and the second sheet of flame resistant film is proximate to the inboard surface of the fire-blocking paper;
- wherein a mesh scrim is adhesively laminated to at least one surface of the second sheet of flame resistant film;
- wherein the fire-blocking paper comprises about 60 to about 74 weight percent bio-soluble alkaline earth silicate fiber, about 3 to about 9 weight percent chopped glass non-respirable fibers, about 4 to about 12 weight percent organic reinforcing fibers, 6 to about 18 weight percent organic binder, and about 2 to about 10 weight percent of at least one of bentonite, hectorite, kaolinite, montmorillonite, palygorskite, saponite, or sepiolite clay;
- and,
- wherein the flame resistant film comprises at least one of polyesters, polyimides, polyetherketones, polyetheretherketones, polyvinylfluorides, polyamides, polytetrafluoroethylenes, polyaryl sulfones, polyester amides, polyester imides, polyethersulfones, polyphenylene sulfides, or combinations thereof.
Dependencies are inferred from the claim text.