Composition for forming a transparent coating film including hollow silica particles

A composition for forming a transparent coating film including hollow silica microparticles and a binder is provided. The hollow silica microparticles have an average particle diameter of 5 to 300 nm when measured by the dynamic light scattering method, a specific surface area of 50 to 1500 m2/g, an...

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Bibliographische Detailangaben
Hauptverfasser: Kumazawa Mitsuaki, Matsuda Masayuki, Muraguchi Ryo, Hirai Toshiharu, Sueyoshi Ryota
Format: Patent
Sprache:eng
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Zusammenfassung:A composition for forming a transparent coating film including hollow silica microparticles and a binder is provided. The hollow silica microparticles have an average particle diameter of 5 to 300 nm when measured by the dynamic light scattering method, a specific surface area of 50 to 1500 m2/g, and an outer shell in which cavities are formed. The microparticles lose weight by 1.0 W % or more at a temperature in the range of from 200° C. to 500° C. when measured by the thermogravimetry (TG). A surface charge (QA) of the hollow silica microparticles contained in the compositions for forming a transparent coating film is in the range from 5 to 20 μeq/g.