Abstract: Aqueous coating compositions are disclosed that are capable of forming residual antimicrobial coatings having improved performance related to residual efficacy and duration. In various embodiments, an antimicrobial coating composition comprises at least one antimicrobial compound, at least one durable matrix forming compound, and optionally, at least one performance-enhancing additive. The antimicrobial compound is selected from non-silane quaternary compounds and quaternary silanes. The durable matrix forming compound is selected from polymers, non-polymeric organic compounds, inorganic substances, additional antimicrobial substances, reactive silanes, and non-reactive silanes. The performance-enhancing additive is selected from a polymer, a solvent, an inorganic substance, a surfactant, a crosslinker, a surface modifier, and chemical species capable of forming a sol-gel.

Abstract: An aqueous antimicrobial coating composition capable of forming an antimicrobial coating on a surface comprises at least two organosilanes, each of the at least two organosilanes having a structure, R—Si(OR?)3 wherein R=—(CH2)3—Y; Y=+—N(CH3)2(C18H37)X?; +—N(CH3)2(C14H29)X?; +—N(C10H21)2(CH3)X?; —Cl or —NH2; X?=halide, sulfate, nitrate, phosphate, carbonate, organic sulfonate, organic carbonate, BF4?, or ClO4?; and R?=H, methyl or ethyl, or a C3-C6 straight-chained, branched or cyclic alkyl group, with the proviso that the organosilane R—Si(OR?)3 having the C3-C6 straight-chained, branched or cyclic alkyl group hydrolyzes in the aqueous antimicrobial coating composition to R—Si(OH)3.

Abstract: An aqueous antimicrobial coating composition capable of forming an antimicrobial coating on a surface comprises at least two organosilanes, each of the at least two organosilanes having a structure, R—Si(OR?)3 wherein R=—(CH2)3—Y; Y=+—N(CH3)2(C18H37)X?; +—N(CH3)2(C14H29)X?; +—N(C10H21)2(CH3)X?; —Cl or —NH2; X?=halide, sulfate, nitrate, phosphate, carbonate, organic sulfonate, organic carbonate, BF4?, or ClO4; and R?=H, methyl or ethyl, or a C3-C6 straight-chained, branched or cyclic alkyl group, with the proviso that the organosilane R—Si(OR?)3 having the C3-C6 straight-chained, branched or cyclic alkyl group hydrolyzes in the aqueous antimicrobial coating composition to R—Si(OH)3.

Abstract: An aqueous antimicrobial coating composition capable of forming an antimicrobial coating on a surface comprises at least two organosilanes, each of the at least two organosilanes having a structure, R—Si(OR?)3 wherein R=—(CH2)3—Y; Y=+—N(CH3)2(C18H37)X?; +—N(CH3)2(C14H29)X?; +—N(C10H21)2(CH3)X?; —Cl or —NH2; X?=halide, sulfate, nitrate, phosphate, carbonate, organic sulfonate, organic carbonate, BF4?, or ClO4?; and R?=H, methyl or ethyl, or a C3-C6 straight-chained, branched or cyclic alkyl group, with the proviso that the organosilane R—Si(OR?)3 having the C3-C6 straight-chained, branched or cyclic alkyl group hydrolyzes in the aqueous antimicrobial coating composition to R—Si(OH)3.

Abstract: An aqueous antimicrobial coating composition capable of forming an antimicrobial coating on a surface comprises at least two organosilanes, each of the at least two organosilanes having a structure, R—Si(OR?)3 wherein R=—(CH2)3—Y; Y=+—N(CH3)2(C18H37)X?; +—N(CH3)2(C14H29)X?; +—N(C10H21)2(CH3)X?; —Cl or —NH2; X?=halide, sulfate, nitrate, phosphate, carbonate, organic sulfonate, organic carbonate, BF4?, or ClO4?; and R?=H, methyl or ethyl, or a C3-C6 straight-chained, branched or cyclic alkyl group, with the proviso that the organosilane R—Si(OR?)3 having the C3-C6 straight-chained, branched or cyclic alkyl group hydrolyzes in the aqueous antimicrobial coating composition to R—Si(OH)3.

Abstract: An aqueous antimicrobial coating composition capable of forming an antimicrobial coating on a surface comprises at least two organosilanes, each of the at least two organosilanes having a structure, R—Si(OR?)3 wherein R=—(CH2)3—Y; Y=+—N(CH3)2(C18H37)X?; +—N(CH3)2(C14H29)X?; +—N(C10H21)2(CH3)X?; —Cl or —NH2; X?=halide, sulfate, nitrate, phosphate, carbonate, organic sulfonate, organic carbonate, BF4?, or ClO4?; and R?=H, methyl or ethyl, or a C3-C6 straight-chained, branched or cyclic alkyl group, with the proviso that the organosilane R—Si(OR?)3 having the C3-C6 straight-chained, branched or cyclic alkyl group hydrolyzes in the aqueous antimicrobial coating composition to R—Si(OH)3.