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US 6,381,918 B2Granted
Wallboard adhesive
AssigneeIllinois Tool Works Inc.
InventorsEdward Stein, Steve Choi
Life of this patent
Estimating the term…
Abstract
A water-based wallboard adhesive including water, a binder, and a particulate filler is described. The adhesive can have an open time greater than about 5 minutes and a green strength sufficient to support a 4 foot by 8 foot wallboard on a wall frame without fasteners in the field of the wallboard within 15 minutes of applying the adhesive to the wallboard and wall frame.
Claims6
A method of manufacturing a wallboard and wall frame assembly comprising:
- applying a water-based adhesive comprising water, a binder, and a particulate filler to a surface of a wall frame, and
- placing a wallboard on the adhesive applied to the surface of the wall frame to produce a wallboard and wall frame assembly,
- wherein the water-based adhesive has a green strength sufficient to support a 4 foot by 8 foot wallboard on a wall frame without fasteners in the field of the wallboard within 15 minutes of applying the adhesive to the wallboard and wall frame,
- wherein said adhesive filler having an open time of greater than 5 minutes, wherein said binder is a polyvinyl acetate emulsion, and wherein said particulate filler comprises a first particle size distribution and a second particle size distribution, wherein said first particle size distribution is about 3 to 6 microns in diameter and wherein said second particle size diameter distribution is about 14 to 21 microns in diameter.
1 more element
Dependencies are inferred from the claim text.