| abstract |
The present invention has an arbitrary low refractive index, has excellent water repellency and antifouling properties, and has durability such as abrasion resistance, chemical resistance, warm water resistance, heat resistance and weather resistance. An object of the present invention is to provide a water-repellent low refractive index coating composition and an optical article coated with the composition, characterized in that an excellent transparent film can be provided. The present invention relates to a water repellent low refractive index coating composition comprising an oxide fine particle containing silicon or one or more metals, a fluorine-containing organosilicon compound, and an organosilicon compound, and a composition thereof. [Selection diagram] None |