ITO EN has filed a patent for an antifogging coating composition that includes elongated colloidal silica and spheroidal colloidal silica. The composition aims to create a coating film that prevents blushing and maintains its antifogging effect even when exposed to water vapor, without any changes in appearance such as water drip marks. GlobalData’s report on ITO EN gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on ITO EN, cancer treatment biomarkers was a key innovation area identified from patents. ITO EN's grant share as of June 2023 was 1%. Grant share is based on the ratio of number of grants to total number of patents.
Antifogging coating composition with elongated and spheroidal colloidal silica
A recently filed patent (Publication Number: US20230137628A1) describes an antifogging coating composition and film. The composition includes elongated colloidal silica and spheroidal colloidal silica. The weight ratio of solid content between the elongated and spheroidal colloidal silica is between 10:10 and 40:10. The elongated colloidal silica can be a mixture of acidic and basic types, while the spheroidal colloidal silica can be basic, acidic, or a combination of both. The composition may also contain a surfactant and an organic solvent.
The patent also describes an antifogging coating film that consists of elongated silica and spheroidal silica. The spheroidal silica is embedded in the void between adjacent elongated silica particles. Similar to the composition, the elongated silica can be a mixture of acidic and basic types, while the spheroidal silica can be basic, acidic, or a combination of both.
Furthermore, the patent mentions an antifogging article that includes a substrate and the aforementioned antifogging coating film.
Overall, the patent presents a novel antifogging coating composition and film that utilize elongated and spheroidal colloidal silica particles. The combination of these particles, along with the inclusion of surfactants and organic solvents, aims to provide effective antifogging properties. The coating film, when applied to a substrate, can prevent fogging by utilizing the unique structure of embedded spheroidal silica within elongated silica particles. This patent may have potential applications in various industries where antifogging properties are desired, such as automotive, eyewear, and medical devices.
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