Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1987-02-17
1988-05-10
McCamish, Marion C.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
428251, 428282, 428285, 428286, 428300, 428921, B32B 104
Patent
active
047434953
ABSTRACT:
A non woven fire blocking seat fabric particularly suited for aircraft applications is disclosed. The fabric is a nonwoven, multiplied flame resistant fabric comprised of at least two felted plies, each ply being further comprised of fibers selected from the group consisting of aramid fibers, polybenzimidazole fibers, and phenolic fibers, wherein the combined percentage by weight of said aramid and phenolic fibers is approximately 80% by weight of said felted ply with the aramid fibers being present in the range of about 10% to 60% and the phenolic fibers being present in the range of about 20% to 70%.; and the plies are united into a single fabric by fibers which are needled from the respective ply into the other ply. In the preferred fabric a stabilized woven scrim is positioned between the plies of the fabric. In the preferred fabric the scrim is of glass material.
REFERENCES:
patent: 2165772 (1937-05-01), Walsh et al.
patent: 3392079 (1968-07-01), Fekete
patent: 3664905 (1972-05-01), Schuster
patent: 4162190 (1979-07-01), Ashworth
patent: 4284682 (1981-08-01), Tschirch et al.
patent: 4302496 (1981-11-01), Donovan
patent: 4529643 (1985-07-01), Lundstrom
patent: 4623571 (1986-11-01), Yamamoto
Copy of Federal Register, Oct. 26, 1984, vol. 49, No. 209, pp. 43188-43200.
Copy of Seat-Wear Test, developed by Boeing Aircraft Company, p. 11, line 29 through p. 12, line 1 of specification.
Lilani Harish N.
Weber, Sr. deceased John W.
Amatex Corporation
McCamish Marion C.
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