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US 12,208,602 B2Granted
Humidity and sag resistant building panel
AssigneeAWI Licensing LLC
InventorsJames D. Pape, Gourish Sirdeshpande, Joanne Lefever, Kimberly Diffenbaugh, Jere Myers, John Felegi, Jr.
Life of this patent
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Abstract
Described herein is a stain and sag resistant acoustic building panel comprising a porous body formed from building material and latex binder, wherein the building material may include fibers and filler and at one of the building materials has been pre-treated with a charge-modifying component, thereby enhancing the sag-resistance of the building panel.
Claims14
An acoustic ceiling panel comprising:
- a porous body having an upper surface opposite a lower surface and at least one side surface extending between the upper surface and the lower surface, the porous body comprising a latex binder and a fibrous material;
- a non-woven scrim having a first major surface opposite a second major surface, the second major surface of the non-woven scrim adjacent to the lower surface of the porous body;
- and
- a coating in a dry state applied to the first major surface of the non-woven scrim in an amount ranging from about 5 g/m2 to about 40 g/m2, the coating comprising:
- a first hydrophobic component;
- inorganic filler, and
- binder,
- wherein the hydrophobic component is present in an amount ranging from about 0.1 wt. % to about 10 wt. % based on a total dry weight of the coating, and wherein the hydrophobic component comprises at least one of a wax, a silicone, or a fluoro-containing additive.
5 more elements
An acoustic ceiling panel comprising
- a porous body having an upper surface opposite a lower surface and at least one side surface extending between the upper surface and the lower surface, the porous body comprising a latex binder and a fibrous material;
- a non-woven scrim having a first major surface opposite a second major surface, the second major surface of the non-woven scrim adjacent to the lower surface of the porous body;
- a coating applied to the first major surface of the non-woven scrim, the coating comprising a first hydrophobic component;
- and
- a back coating is applied to the upper surface of the body, the back coating comprising a hygroscopic component and a second hydrophobic component.
2 more elements
A coated non-woven scrim comprising:
- a non-woven scrim comprising fiberglass, wherein the non-woven scrim is hydrophobic;
- and
- a coating applied to the non-woven scrim, wherein the coating is present in a dry state in an amount ranging from about 5 g/m2 to about 40 g/m2, wherein the coating comprises
- a hydrophobic component,
- inorganic filler, and
- binder,
- wherein the hydrophobic component is present in an amount ranging from about 0.1 wt. % to about 10 wt. % based on a total dry weight of the coating, and wherein the hydrophobic component comprises at least one of a wax, a silicone, or a fluoro-containing additive.
4 more elements
Dependencies are inferred from the claim text.