초록 ▼

Embodiments of the present invention pertain to antimicrobial glass compositions, glasses and articles. The articles include a glass, which may include a glass phase and a cuprite phase. In other embodiments, the glasses include as plurality of Cu1+ ions, a degradable phase including B2O3, P2O5 and

Embodiments of the present invention pertain to antimicrobial glass compositions, glasses and articles. The articles include a glass, which may include a glass phase and a cuprite phase. In other embodiments, the glasses include as plurality of Cu1+ ions, a degradable phase including B2O3, P2O5 and K2O and a durable phase including SiO2. Other embodiments include glasses having a plurality of Cu1+ ions disposed on the surface of the glass and in the glass network and/or the glass matrix. The article may also include a polymer. The glasses and articles disclosed herein exhibit a 2 log reduction or greater in a concentration of at least one of Staphylococcus aureus, Enterobacter aerogenes, Pseudomonas aeruginosa bacteria, Methicillin Resistant Staphylococcus aureus, and E. coli, under the EPA Test Method for Efficacy of Copper Alloy as a Sanitizer testing conditions and under Modified JIS Z 2801 for Bacteria testing conditions. In some embodiments, the glass and articles exhibit a 2 log reduction or greater in a concentration of Murine Norovirus under Modified JIS Z 2801 Test for Viruses testing conditions.

대표청구항 ▼

1. An article comprising a glass, wherein the glass comprises a cuprite phase comprising a plurality of Cu1+ ions; a first phase comprising at least one of B2O3, P2O5 and R2O, wherein R is selected from the group consisting of K, Na, Li, Rb, Cs and combinations thereof; anda second phase,wherein the

1. An article comprising a glass, wherein the glass comprises a cuprite phase comprising a plurality of Cu1+ ions; a first phase comprising at least one of B2O3, P2O5 and R2O, wherein R is selected from the group consisting of K, Na, Li, Rb, Cs and combinations thereof; anda second phase,wherein the glass comprises a surface portion having a depth of less than about 5 nanometers (nm), the surface portion comprising a plurality of copper ions wherein at least 75% of the plurality of copper ions are Cu1+. 2. The article of claim 1, further comprising a polymer, wherein the polymer comprises a thermoplastic polymer, a polyolefin, an injection moldable thermosetting polymer or combinations thereof. 3. The article of claim 2, further comprising a glass to polymer ratio in the range from about 10:90 to about 90:10, based on weight percent. 4. The article of claim 1, further exhibiting any one or more of a 2 log reduction or greater in a concentration of any one or more of Staphylococcus aureus, Enterobacter aerogenes, Pseudomonas aeruginosa bacteria, Methicillin Resistant Staphylococcus aureus, and E. coli, under the EPA Test Method for Efficacy of Copper Alloy as a Sanitizer testing conditions,a 4 log reduction or greater in a concentration of any one or more of Staphylococcus aureus, Enterobacter aerogenes, Pseudomonas aeruginosa bacteria, Methicillin Resistant Staphylococcus aureus, and E. coli, under the JIS Z 2801 (2000) testing conditions or a Modified JIS Z 2801 Test for Bacteria, anda 4 log reduction or greater in a concentration of Murine Norovirus, under a Modified JIS Z 2801 Test for Viruses. 5. The article of claim 1, wherein the cuprite phase is dispersed in at least one of the first phase and the second phase. 6. The article of claim 1, wherein the second phase comprises SiO2. 7. The article of claim 1, wherein the first phase comprises Cu′. 8. The article of claim 1, wherein the cuprite phase comprises at least about 10 weight percent of the glass. 9. The article of claim 1, wherein the glass comprises a surface, a glass network and a glass matrix, and wherein the plurality of Cu1+ ions is disposed on the surface and in at least one of the glass network and the glass matrix.