Imprinted particle structure
View Patent ↗A multi-layer biocidal structure includes a support and a structured bi-layer on or over the support. The structured bi-layer includes a first cured layer on or over the support and a second layer in a spatial relationship to the first cured layer on a side of the first cured layer opposite the support. The structured bi-layer has at least one depth greater than the thickness of the second layer. Multiple biocidal particles are located only in the second layer.
1. A multi-layer biocidal structure, comprising:
a support;
a structured bi-layer on or over the support, the structured hi-layer including a first cured layer on or over the support, a second layer in a spatial relationship to the first cured layer on a side of the first cured layer opposite the support that completely covers the first cured layer, the structured hi-layer including indentations having at least one depth greater than the thickness of the second layer; and
multiple biocidal particles located only in the second layer.
2. The multi-layer biocidal structure of claim 1 , further including a binder primer between the first cured layer and the support.
3. The multi-layer biocidal structure of claim 1 , wherein the second layer is thinner than the first cured layer.
4. The multi-layer biocidal structure of claim 1 , wherein the particles include a silver component, are a salt, have a sulfur component, have a copper component, are a silver sulfate salt, or include phosphors.
5. The multi-layer biocidal structure of claim 1 , wherein the second layer has a surface on a side of the second cured layer opposite the first cured layer and at least a portion of the particles extend beyond the surface.
6. The multi-layer biocidal structure of claim 1 , wherein extending portions of the particles are exposed.
7. The multi-layer biocidal structure of claim 1 , wherein the second layer has a thickness that is less than at least one diameter of one or more of the particles, has a thickness that is less than a mean diameter of the particles, or has a thickness that is less than the median diameter of the particles.
8. The multi-layer biocidal structure of claim 1 , wherein the particles have at least one diameter between 0.05 and 25 microns.
9. The multi-layer biocidal structure of claim 1 , wherein the second layer is greater than or equal to 0.5 micron thick and less than or equal to 20 microns thick.
10. The multi-layer biocidal structure of claim 1 , wherein the second layer is hydrophobic.
11. The multi-layer biocidal structure of claim 1 , wherein the first cured layer includes a cross-linked material.
12. The multi-layer biocidal structure of claim 11 , wherein at least a portion of the second layer includes the cross-linked material and the particles are fixed in the cross-linked material.
13. The multi-layer biocidal structure of claim 12 , wherein at least a portion of the second layer includes the cross-linked material and the particles are fixed on or adhered to the cross-linked material.
14. The multi-layer biocidal structure of claim 1 , Wherein only a portion of the second layer is in common with a portion of the first cured layer.
15. The multi-layer biocidal structure of claim 1 , wherein the entire second layer is in common with a portion of the first cured layer.
16. The multi-layer biocidal structure of claim 1 , wherein none of the second layer is in common with a portion of the first cured layer.