Reducing formaldehyde emissions from fiberglass insulation
AssigneeGeorgia-Pacific Resins, Inc.
InventorsPeter Boyer, Kim Tutin, Ramji Srinivasan
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Abstract
A process for making a fibrous product using a binder based on a formaldehyde-containing resin and especially for making fiberglass insulation products, and to the fibrous products themselves, wherein the fibrous product has a backing sheet affixed thereto and the backing sheet is coated or impregnated with a formaldehyde scavenger composition, with the result that the fibrous products exhibit a reduced level of formaldehyde emission.
Claims34
A process of producing a fibrous mat wherein the fibrous mat comprises a cured formaldehyde-containing resin binder and the fibrous mat has a backing sheet, the process comprising applying a formaldehyde-scavenger composition onto the backing sheet so that the formaldehyde-scavenger composition is in a mass transfer relationship to the fibrous mat.
A fibrous mat having fibers bonded to one another with a binder comprising a cured formaldehyde-containing resin and having a backing sheet adjacent the fibrous mat, wherein the backing sheet carries a formaldehyde scavenger composition in a mass transfer relationship to the fibrous mat and in an amount sufficient to reduce formaldehyde emissions from the fibrous mat.
A backing sheet for a fiberglass insulation product comprising a substrate in sheet form carrying a formaldehyde scavenger composition.
A process of reducing the level of formaldehyde emission from a fibrous mat in which the fibrous mat comprises a cured formaldehyde-containing resin binder, the process comprising isolating the fibrous mat with a formaldehyde-scavenger such that the formaldehyde-scavenger is in a mass transfer relationship with the fibrous mat.
Dependencies are inferred from the claim text.