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US 5,491,186 AGranted
Bonded insulating batt
OwnerJames H. Kean, Tod M. Keaninventors
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Abstract
Bonded insulation batt useful for thermal and acoustical insulation comprising secondary cellulose fiber, binder fiber and optionally lofting fiber, preferably bonded by a thermal process.
Claims11
A thermal insulating batt comprising a thermally bonded fiber structure consisting essentially of:
- a) secondary cellulose fiber having a density of up to about 1.5 lbs/cubic foot;
- b) about from 2.5 to 12 percent by weight of thermoplastic binder fiber having a melting point below the decomposition temperature of the secondary fiber;
- and
- c) up to about 25 percent by weight of lofting fiber different from the binder fiber;
- wherein the insulating batt has a density of up to about 2.5 lbs/cubic foot and the insulating batt recovers at least about 80 percent of its precompression volume upon decompression.
2 more elements
Dependencies are inferred from the claim text.