Modified inorganic particles, hard coat composition containing the same, and coated film thereof

By modifying inorganic particles by combining silsesquioxane and organosilicon binders on the surface of inorganic particles, the problems of dispersion stability and coating performance of hard coating compositions are solved, achieving coatings with high refractive index and excellent physical properties, suitable for thin-film, flexible and large-scale displays.

CN122180652APending Publication Date: 2026-06-09DONGJIN SEMICHEM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DONGJIN SEMICHEM CO LTD
Filing Date
2024-11-26
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing hard coating compositions have insufficient dispersion stability, and the refractive index and physical properties of the coating film need to be improved, making it difficult to meet the requirements of thin-film, flexible and large-scale displays.

Method used

Modified inorganic particles are used, and by combining silsesquioxane and organosilicon binders on the surface of inorganic particles, modified inorganic particles with open structures are formed, which improves dispersion stability. Furthermore, the refractive index and physical properties of the coating film are enhanced by high-refractive-index inorganic particles and organosilicon binders.

Benefits of technology

It improves the dispersion stability of the composition for hard coatings and the refractive index and physical properties of the coating film. It is suitable for large-area wet coating processes, the viscosity is easy to adjust, it is suitable for a variety of coating processes, the coating film hardness reaches H or above, and the refractive index is 1.3 or above.

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Abstract

The present invention relates to a modified inorganic particle, the modified inorganic particle comprising: a silsesquioxane having an open structure; and an inorganic particle combined with the silsesquioxane, and the modified inorganic particle having a refractive index of 1.3 or more, and a hard coat composition comprising the modified inorganic particle and a coated film thereof.
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