Fabric (woven – knitted – or nonwoven textile or cloth – etc.) – Nonwoven fabric – Including an additional nonwoven fabric
Reexamination Certificate
2011-08-02
2011-08-02
Kruer, Kevin R. (Department: 1787)
Fabric (woven, knitted, or nonwoven textile or cloth, etc.)
Nonwoven fabric
Including an additional nonwoven fabric
C422S310000, C422S310000, C422S180000, C428S294700
Reexamination Certificate
active
07989370
ABSTRACT:
A gypsum wallboard suitable for Level 4 finishing having a coated non-woven glass fiber mat facing material where the glass fiber mat has a majority of fibers of a fiber diameter between 8 and 11 microns and a fiber length between ¼ and ¾ inch and preferably between ¼ and ½ inch and preferably has a basis weight between about 0.8 lb./100 ft.2and about 2.2 lb./100, and wherein the fibers in the non-woven glass fiber are bound together with an acrylic adhesive binder and wherein the non-woven glass mat has a coating of a dried aqueous mixture of (i) a mineral pigment, (ii) a polymer latex adhesive binder and optionally (iii) an inorganic adhesive binder such that the coated non-woven glass mat facing material has a porosity which allows water to evaporate through said coated mat from the gypsum core during preparation of the wallboard.
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Currier Alan
Smith Russell
Georgia-Pacific Gypsum LLC
Kruer Kevin R.
LandOfFree
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