Imprinted multi-layer biocidal particle structure

Abstract

A multi-layer biocidal structure includes a support. A structured bi-layer is located on or over the support. The bi-layer includes a first cured layer on or over the support and a second cured layer on or over 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 cured layer.

1 . A multi-layer biocidal structure, comprising:
 a support;   a structured bi-layer on or over the support, the structured bi-layer including a first cured layer on or over the support, a second cured layer on or over the first cured layer on a side of the first cured layer opposite the support, and the structured bi-layer having at least one depth greater than the thickness of the second cured layer; and   multiple biocidal particles located only in the second cured 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 cured layer is thinner than the first cured layer. 
     
     
         4 . The multi-layer biocidal structure of  claim 1 , wherein the particles have a silver component, have a sulfur component, have a copper component, are a salt, are a silver sulfate salt, or include phosphors. 
     
     
         5 . The multi-layer biocidal structure of  claim 1 , wherein the second cured 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 cured 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 cured 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 cured layer is hydrophobic. 
     
     
         11 . The multi-layer biocidal structure of  claim 1 , wherein the first cured layer has a first cross-linked material that is cross-linked to a second cross-linked material in the second cured layer. 
     
     
         12 . The multi-layer biocidal structure of  claim 11 , wherein the first cross-linked material is the same material as the second cross-linked material.