Antimicrobial cementitious composition
View Patent ↗An antimicrobial cementitious composition for imparting antimicrobial characteristics to cement comprises cement and an antimicrobial agent selected from the group consisting of an ortho-phenyl phenol or salt thereof, a tolyl diiodomethyl sulfone, a zinc pyrithione, an oxathiazine, an azole, a chlorothalonil, and a triazine diamine; combinations of agents also may be employed.
1. A method for making an antimicrobial solid cementitious article, comprising:
affixing an antimicrobial cementitious composition to a substrate, said antimicrobial cementitious composition including ortho-phenyl phenol; and
dehydrating said affixed composition.
2. The method of claim 1 wherein the ortho-phenyl phenol is present in an amount at least from about 750 ppm to about 3000 ppm based on the weight of the cementitious composition.
3. The method of claim 1 wherein the ortho-phenyl phenol is sodium ortho-phenyl phenol.
4. The method of claim 1 wherein the cementitious composition is stucco.
5. The method of claim 1 wherein the antimicrobial cementitious composition further includes an antimicrobial agent selected from the group consisting of a tolyl diiodomethyl sulfone, a zinc pyrithione, an oxathiazine, a chlorothalonil, and a triazine diamine.
6. The method of claim 1 wherein the antimicrobial cementitious composition is selected from the group consisting of a concrete composition, a mortar composition, a grout composition, and a stucco composition.
7. The method of claim 1 wherein the antimicrobial cementitious composition is a stucco composition.
8. The method of claim 1 wherein the antimicrobial cementitious composition is in a liquid state.
9. The method of claim 1 wherein the antimicrobial cementitious composition is in a solid state.
10. The method of claim 9 wherein the antimicrobial cementitious composition is a powdered solid.
11. The method of claim 1 wherein the substrate is a substantially vertically oriented substrate.