Fibrous insulation with fungicide
AssigneeCertainTeed Corporation
InventorsMurray Toas, Pierre Herault, Sanford Moyer, Joseph Michetti
Life of this patent
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Abstract
A fibrous insulation has insulation fibers (104) with a fungicide in a dispersed additive affixed to the fibers (104), and a method of making a fibrous insulation by dispersing a fungicide and a dispersed additive on the fibers (104) followed by affixing the dispersed additive on the fibers (104). The method produces thermal, acoustic, duct liner or board insulation either as loose fill insulation or as an insulation mat.
Claims42
A method of making fibrous insulation, comprising:
- dispersing a fungicide and a dispersed additive among a plurality of insulation fibers;
- combining the dispersed additive with the fungicide;
- and
- affixing the dispersed additive on the fibers.
A method of making fibrous insulation, comprising:
- dispersing a fungicide among a plurality of insulation fibers;
- dispersing a dispersed additive among the insulation fibers to combine with the dispersed fungicide;
- and
- affixing the dispersed additive in place on the insulation fibers with the fungicide combined with the dispersed additive to provide a fibrous insulation treated with fungicide.
A fibrous insulation comprising:
- an accumulation of insulation fibers;
- a dispersed additive disposed among said fibers, the dispersed additive being affixed to the surfaces of said fibers;
- and
- a fungicide combined with said dispersed additive.
Use of a fungicide comprising at least one compound selected from the group consisting of borax, zinc oxide, calcium propionate and sodium propionate to enhance fungal resistance of insulation fibers of a fibrous insulation, the fungicide and a dispersed additive being dispersed among the insulation fibers, and the fungicide being of controlled concentration relative to a unit measure of the insulation fibers and a unit measure of a dispersed additive.
A method of making fibrous insulation, comprising:
- forming a plurality of newly formed insulation fibers at a forming stage;
- dispersing a fungicide among the newly formed insulation fibers at the forming stage;
- accumulating the newly formed insulation fibers;
- and
- chopping the newly formed insulation fibers into pieces to provide a loose fill fibrous insulation treated with fungicide.
A method of making fibrous insulation, comprising:
- chopping insulation fibers into pieces;
- conveying the pieces of insulation fibers along a transport duct;
- dispersing a fungicide among the pieces of insulation fibers;
- and
- accumulating the pieces of insulation fibers to provide a loose fill fibrous insulation treated with fungicide.
Dependencies are inferred from the claim text.