Thermal and acoustic insulation fabric
OwnerDavid F. Erb JR., Robert A. Gravel +2inventors
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.
Claims23
A fireblocking insulation material comprising at least a first nonwoven batt having 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.
A fireblocking insulation material 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, and 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,
- 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.
A method of making an insulation material comprising:
- needling together nonwoven batting layers, at least one of said batting layers comprising 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,
- coating the batting layers with a coating composition to effect water resistance,
- heating the coated batting layers to dry and cure the coating composition,
- adhering an elastomeric acoustic dampening layer to at least one of the batting layers, and adhering or attaching a polymeric facing film.
Dependencies are inferred from the claim text.