Light-activated coating and materials
OwnerWilliam Clary Floyd, Josef S Schneider +1inventors
InventorsWilliam Clary Floyd, Josef S Schneider, Bernard W Wolff
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Abstract
A polymer having a first monomer operatively connected to Rose Bengal, a second monomer, and a surfactant, wherein the surfactant is selected from the group consisting of ionic surfactants, anionic surfactants, cationic surfactants, nonionic surfactants, zwitterionic surfactants, and mixtures thereof. The Rose Bengal in polymer in an amount effective for rendering the polymer antimicrobial or antiviral upon exposure of said polymer to light; and the polymer produces singlet oxygen from air in the presence of light. A substrate have these features is also included.
Claims9
A structure for delivering singlet oxygen in the presence of light comprising:
- a substrate;
- a polymer disposed on the substrate comprising an acid functional monomer, a co-polymerizable derivative of Rose Bengal, the Rose Bengal copolymerized with the acid functional monomer, a co-polymerizable surfactant copolymerized with the Rose Bengal, the Rose Bengal is in a core shell architecture, and the core comprises a hydrophobic polymer and the Rose Bengal is contained in the shell, and wherein the surfactant is selected from the group consisting of ionic surfactants, anionic surfactants, cationic surfactants, nonionic surfactants, zwitterionic surfactants, and mixtures thereof;
- the polymer having Rose Bengal in polymer in an amount to render the polymer antimicrobial or antiviral upon exposure of the substrate to light;
- and the polymer producing singlet oxygen by the Rose Bengal upon passage of air through the substrate in the presence of light.
Dependencies are inferred from the claim text.