Organically modified fine particles
AssigneeTohoku Techno Arch Co., Ltd.
InventorTadafumi Ajiri
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Abstract
A technique for bonding an organic group with the surface of fine particles such as nanoparticles through strong linkage is provided, whereas such fine particles are attracting attention as materials essential for development of high-tech products because of various unique excellent characteristics and functions thereof. Organically modified metal oxide fine particles can be obtained by adapting high-temperature, high-pressure water as a reaction field to bond an organic matter with the surface of metal oxide fine particles through strong linkage. The use of the same condition enables not only the formation of metal oxide fine particles but also the organic modification of the formed fine particles. The resulting organically modified metal oxide fine particles exhibit excellent properties, characteristics and functions.
Claims22
A process for synthesizing organically modified metal oxide fine particles comprising forming a linkage between a metal oxide fine particle surface and an organic modifying agent in a reaction field of water at a pressure of 10 MPa or above and a temperature of 250° C. or above, and in the presence of an acid.
A process for producing organically modified metal oxide fine particles comprising subjecting a metallic compound to a hydrothermal reaction in a reaction field of water at a pressure of 10 MPa or above and a temperature of 250° C. or above to form metal oxide fine particles, and bonding an organic modifying agent with the surface of the formed metal oxide fine particles in the presence of an acid.
Dependencies are inferred from the claim text.