| US 11,814,532 B1 | ||
| Coatings with antimicrobial copper glass nanoparticles and diol compounds | ||
| Katherine A. Miller, Cleveland, OH (US); and Tony A. Rook, Cleveland, OH (US) | ||
| Assigned to SWIMC LLC, Cleveland, OH (US) | ||
| Filed by SWIMC LLC, Cleveland, OH (US) | ||
| Filed on May 6, 2020, as Appl. No. 15/929,500. | ||
| Claims priority of provisional application 62/992,389, filed on Mar. 20, 2020. | ||
| Claims priority of provisional application 62/846,404, filed on May 10, 2019. | ||
| Int. Cl. C09D 133/08 (2006.01); C08K 5/053 (2006.01); C09D 5/02 (2006.01); C08K 3/40 (2006.01); C08K 7/18 (2006.01) | ||
| CPC C09D 133/08 (2013.01) [C08K 5/053 (2013.01); C09D 5/025 (2013.01); C08K 2003/085 (2013.01); C08K 3/40 (2013.01); C08K 7/18 (2013.01)] | 15 Claims |
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1. A coating composition comprising:
(a) a binder polymer; (b) copper glass nanoparticles, wherein each nanoparticle comprises a glass shell and a copper core, the copper core comprising copper oxidation states Cu0, Cu1+, Cu2+, or combinations thereof, and the glass shell comprising a porous SiO2 structure that at least partially surrounds the copper core; (c) an alkyldiol additive; and (d) a carrier liquid, wherein the copper glass nanoparticles are present in the coating composition in an amount of 1 g/gallon coating composition to 4 g/gallon coating composition; and wherein the alkyldiol additive is selected from the group consisting of 1,2-hexanediol, 1,2-octanediol, 1,2-decanediol, 1,2-hexanediol blended with methylbenzyl alcohol, 1,2-octanediol blended with methylbenzyl alcohol, 1,2-decanediol blended with phenoxyethanol, or blends thereof and wherein the alkyldiol additive is present at 2000 to 5000 ppm by weight. |