Back to results
US 8,263,694 B1Granted
Polyurethane-containing grouts
AssigneeStarquartz Industries, Inc.
InventorsChristopher Warren, John A. Simms
Life of this patent
Estimating the term…
Abstract
Grout compositions having a binder including water-borne polyurethane and a filler are described herein. An accelerator component is provided to control the rate of grout curing, thereby decreasing the time required between grout application and grout use. This result is achieved while providing sufficient time for grout application. Grout may be light-transmissive and include light-transmissive binder and filler.
Claims33
Grout comprising:
- a grout component comprising:
- about 13 to about 25 percent by weight water-borne polyurethane;
- and
- about 75 to about 87 percent by weight filler;
- and
- an accelerator component in an amount sufficient to provide an accelerator component surface area of about 1 to about 60 square meters per 100 grams of the grout component, said accelerator component being selected from the group consisting of magnesium hydroxide, magnesium oxide, zinc oxide and any combination thereof.
3 more elements
A grout comprising:
- a grout component including about 13 to about 25 percent by weight aqueous aliphatic anionic polyurethane dispersion;
- and about 75 to about 87 percent by weight filler;
- and an accelerator component for admixture with the grout component, said accelerator component being selected from the group consisting of magnesium hydroxide, magnesium oxide, zinc oxide and any combination thereof and being provided in an amount sufficient to have a total accelerator component surface area of about 1 to about 60 square meters per 100 grams of the grout component.
A light-transmissive grout for filling a joint defined by colored tiles comprising:
- a light-transmissive grout including:
- about 13 to about 25 percent by weight of a light-transmissive binder comprising water-borne polyurethane;
- and
- about 75 to about 87 percent by weight light-transmissive filler admixed with the binder, said light-transmissive filler permitting passage of light through the grout so that grout in the joint has a color appearance like the color of the tiles defining the joint;
- and
- an accelerator for admixture with the light-transmissive grout, the accelerator being selected from the group consisting of magnesium hydroxide, magnesium oxide, zinc oxide and any combination thereof and being provided in an amount sufficient to have a total accelerator surface area of about 1 to about 60 square meters per 100 grams of the light-transmissive grout.
3 more elements
Dependencies are inferred from the claim text.