Fungicidal grout composition
AssigneeTile Council of America, Inc.
InventorsJoseph J. Chesney, Jr., Scott C. Broney, George A. Ely
Life of this patent
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Abstract
New and improved fungicidal grout compositions are disclosed having a Portland cement base with a halogenated aromatic dinitrile added as an active fungicidal ingredient. The dinitrile is first wet blended with an inert solid fungicidal carrier and a surfactant, then dried and finely divided into a powder. The powder is blended with the other dry ingredients of a Portland cement grout to form a grout composition which is ready to be mixed with water to form a workable mortar for the grouting and setting of ceramic tiles. The resulting fungicidal grout compositions have improved fungicide dispersion and prolonged leach-life characteristics.
Claims8
A fungicidal grout composition for mixing with water which comprises:
- (a) from about 50 to about 99% by weight of a wettable Portland cement;
- (b) from about 0.25 to 12.0% by weight of a dry blended mixture, said mixture comprising from about 50% to about 90% by weight of a halogenated aromatic dinitrile and from about 10% to about 50% by weight of a finely divided inert solid fungicidal carrier;
- (c) from 0 to 50% by weight of a water insoluble filler;
- (d) from about 0.2 to about 0.5% by weight of a hygroscopic agent;
- and
- (e) from 0 to about 10% by weight of a coloring agent.
Dependencies are inferred from the claim text.