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US 8,127,510 B2Granted
Insulation containing inorganic fiber and spherical additives
AssigneeCertainTeed Corporation
InventorChristophe Wagner
Life of this patent
Estimating the term…
Abstract
The present invention provides thermal insulation products such as loose fill, bats and boards, such as duct boards and duct liner. The insulation products include randomly distributed inorganic fibers which are supplemented with at least about five weight percent microspheres, macrospheres, or both, preferably include hollow microspheres, which boost the insulation value of the fiberglass thermal insulation by at least about 0.5 R.
Claims7
A thermal insulation, consisting of:
- a layer of insulation having about 50-95 weight percent glass fibers which are randomly distributed together with included air within spaced apart portions of said glass fibers, and about 5-50 weight percent insulating hollow microspheres;
- and
- a binder joining and holding together said glass fibers to consist of a fiberglass insulation layer in which said binder joins and holds said hollow microspheres and said glass fibers together.
Dependencies are inferred from the claim text.