This technology is a manufacturing method that produces a dual-layered composite coating film with a metal-containing compound layer formed on a resin coating layer by applying a coating solution containing a mixture of a UV-curable resin coating precursor and a photochemical organometallic precursor onto a substrate, followed by UV exposure.
Plastic polymer materials lack the chemical resistance, surface mechanical strength, and high-temperature stability of glass, leading to the use of organic-inorganic hybrid protective coatings. However, dispersing inorganic materials within polymers leads to excessive consumption of inorganic materials and thicker films, while coating an inorganic layer separately over a polymer layer increases processing steps and reduces adhesion at the interface of dissimilar materials.
This technology utilizes the fact that the photoreaction rate of the organometallic precursor is slower than the curing rate of the resin precursor to sequentially form a lower resin layer and an upper metal compound layer with a single exposure. An interface with a gradually changing metal composition forms between the two layers, ensuring excellent interlayer adhesion, while the high concentration of ceramic components on the surface provides unique functionality. Applicable to plastic covers for mobile displays and anti-fouling, anti-fingerprint, and anti-static coatings, it can enhance the surface durability of glass-substitute plastics in a single process.
US10642154B2
