Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Reexamination Certificate
2007-05-22
2007-05-22
Miggins, Michael C. (Department: 1772)
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
C428S220000, C138S146000, C138S149000, C138S153000
Reexamination Certificate
active
09789063
ABSTRACT:
Water-resistant fibrous air duct insulation products and methods for making such products. The products may include a duct board or a duct tube including a first layer of resin-bonded fibrous mat having a second layer of durable, preferably non-woven, facing material adhered thereto, wherein the facing material defines the air stream surface for the board or tube. The duct board or tube is preferably rendered water-repellent at the air stream surface by incorporating a hydrophobic agent into the adhesive used to adhere the second layer to the first layer.
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Ruid John O.
Toas Murray S.
Certain-Teed Corporation
Duane Morris LLP
Miggins Michael C.
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