Patent ID: 8747876

Claim:
An oleophilic antimicrobial composition comprising: silica nanotubes containing silver nanoparticles dispersed in an organic solvent; and a wetting and dispersing agent, wherein the silica nanotubes have fine pores formed therein, each of the fine pores having a size of 30-50 nm and each of the silica nanotubes having a total length of 1-30 μm, wherein the content of the silver nanoparticles in the silica nanotubes is 20000-100000 ppm, wherein the silica nanotubes are contained in an amount of 45-55 parts by weight based on 100 parts by weight of the organic solvent, wherein the organic solvent is at least one selected from the group consisting of propylene glycol methyl ether acetate (hereinafter, referred to as ‘PMA’), butyl cabitol, butyl acetate and ethyl acetate, wherein the wetting and dispersing agent is provided in an amount of 20-30 parts by weight based on 100 parts by weight of the organic solvent, and wherein the wetting and dispersing agent is at least one selected from the group consisting of alkylammonium salt copolymer compounds, polyester and polyether-based compounds, copolymers containing a phosphoric acid group, and copolymers having a polar or non-polar amine group.