Thermal and acoustic insulation fabric
AssigneeTex Tech Industries, Inc.
InventorsDavid F. Erb, Jr., Robert A. Gravel, Eric D. Ritter, Eric A. Barter
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Abstract
An insulating fabric which substantially prevents propagation of fire uses a blend of modified aluminum oxide-silica fibers and organic fibers in a multi-layer blanket.
Claims21
A fireblocking insulation material for an aircraft comprising a plurality of layers consolidated by needle punching, including at least a first nonwoven batt having a blend of modified aluminum oxide-silica fibers present in an amount between about 1.0 percent by weight and 95.0 percent by weight and organic fibers present in an amount between about 5.0 percent by weight and about 99.0 percent by weight, said insulation material having an outer surface resistant to flame propagation.
A fireblocking insulation material for an aircraft having a plurality of layers comprising:
- a first nonwoven batt having a mass per unit area from about 10.0 to about 15.0 oz/yd2 and comprising about 15.0 to about 50.0 percent by weight modified aluminum oxide-silica fibers having a mean fiber diameter of about 9 microns, blended with about 50.0 to about 85.0 percent by weight poly m-phenylene isophthalamide fibers, poly p-phenylene terephthalamide fibers, polybenzimidazole fibers, or a mixture thereof, and having an outer surface resistant to flame propagation;
- and
- at least one additional nonwoven batt comprising organic fibers,
- said first nonwoven batt and said at least one additional nonwoven batt needled together with an acoustic dampening layer and coated with a waterproof coating.
Dependencies are inferred from the claim text.