Abstract:
A method includes coating a substrate to provide a flame resistant substrate. In an embodiment, the method includes preparing an aqueous solution. The aqueous solution comprises a phosphate material, a cationic material, and a water. The method further includes exposing the substrate to the aqueous solution to produce a coating on the substrate. The coating includes the cationic material and the phosphate material. The method also includes exposing the coating on the substrate to a melamine solution.
Abstract:
The present invention relates to optical elements, such as ophthalmic elements, including a substrate, a compatiblizing coating that optionally includes a dendritic polymer on at least a portion of the surface of the substrate and a functional organic coating, such as, but not limited to, an alignment coating, a photochromic coating, or an aligned liquid crystal coating, in contact with at least a portion of the compatiblizing coating opposite the substrate. The present invention also relates to compatiblizing coating compositions of dendritic polymers that may be used to form compatiblizing coatings on the surface of an optical element, and methods of making optical elements using the compatiblizing coatings.
Abstract:
A method includes coating a substrate to provide a flame resistant substrate. In an embodiment, the method includes preparing an aqueous solution. The aqueous solution comprises a phosphate material, a cationic material, and a water. The method further includes exposing the substrate to the aqueous solution to produce a coating on the substrate. The coating includes the cationic material and the phosphate material. The method also includes exposing the coating on the substrate to a melamine solution.
Abstract:
The current invention presents the development of innovative antibacterial hybrid nanocomposites obtained by the interaction of nanostructured carbon-based materials with functionalized dendritic polymers through electrostatic interactions or other intermolecular forces. Their dispersions in various solvents exhibit extreme stability, even at high concentrations (up to 10 mg/mL), for long periods (more than one year) without precipitation. Additionally, in the present invention, the antibacterial properties of these novel hybrid nanocomposites as well as their effect on photosynthesis are described for the first time. Specifically, these nanocomposites exhibit enhanced antibacterial properties at very low concentration (5µg/mL), while they cause an almost complete inhibition of Photosystem I in photosynthetic organisms. Furthermore, in this invention several applications of these antibacterial nanocomposites are presented and evaluated. Specifically, their incorporation or coating onto various materials and/or substrates, including polymers, metal, wood, woven and nonwoven textile materials, plastics, thermoplastics, synthetic or composite materials, etc., results in innovative surfaces with enhanced antibacterial properties. Finally, in order to evaluate and assess the antibacterial properties of the abovementioned nanocomposites and/or the surfaces resulting from their application, an in-situ, direct and instrumental method is invented, capable to quantify the antibacterial behaviour of any material, substrate or matrix at a relevant environment.
Abstract:
The current invention presents the development of innovative antibacterial hybrid nanocomposites obtained by the interaction of nanostructured carbon-based materials with functionalized dendritic polymers through electrostatic interactions or other intermolecular forces. Their dispersions in various solvents exhibit extreme stability, even at high concentrations (up to 10 mg/mL), for long periods (more than one year) without precipitation. Additionally, in the present invention, the antibacterial properties of these novel hybrid nanocomposites as well as their effect on photosynthesis are described for the first time. Specifically, these nanocomposites exhibit enhanced antibacterial properties at very low concentration (5µg/mL), while they cause an almost complete inhibition of Photosystem I in photosynthetic organisms. Furthermore, in this invention several applications of these antibacterial nanocomposites are presented and evaluated. Specifically, their incorporation or coating onto various materials and/or substrates, including polymers, metal, wood, woven and nonwoven textile materials, plastics, thermoplastics, synthetic or composite materials, etc., results in innovative surfaces with enhanced antibacterial properties. Finally, in order to evaluate and assess the antibacterial properties of the abovementioned nanocomposites and/or the surfaces resulting from their application, an in-situ, direct and instrumental method is invented, capable to quantify the antibacterial behaviour of any material, substrate or matrix at a relevant environment.
Abstract:
Describes a photochromic plastic article, e.g., an ophthalmic photochromic article, such as a lens, in which the article includes (1) a rigid substrate, e.g., polymeric substrate, such as a thermoset or thermoplastic substrate, (2) a photochromic polymeric coating appended to at least one surface of the substrate, the photochromic polymeric coating containing a photochromic amount of at least one photochromic material, e.g., spirooxazine, naphthopyran and/or fulgide, and (3) a dendritic polyester acrylate film coherently appended to the photochromic coating. Describes also the aforedescribed photochromic article having an abrasion-resistant coating affixed to the dendritic polyester acrylate film, e.g., an abrasion-resistant coating comprising an organo silane; and a photochromic article having an antireflective coating affixed to the abrasion-resistant coating.