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US 12,558,460 B2Granted
Porous inorganic particle, and composite filler, product using the same
AssigneeLG Chem, Ltd.
InventorsYunseop Kim, Lucia Kim, Jee Seon Kim
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Abstract
The present disclosure relates to a porous inorganic particle which comprises a sintered body of calcium-based particles, and pores distributed in the sintered body, and has a core-shell structure of a core having a high porosity and a shell having a porosity lower than that of the core, wherein the calcium-based particles comprise first calcium-based particles having a maximum diameter of 10 nm to 500 nm, and second calcium-based particles having a maximum diameter of 1 μm to 10 μm, and to a composite fillers and product using the same.
Claims20
A porous inorganic particle comprising:
- a sintered body of calcium-based particles, pores distributed in the sintered body, and
- a core-shell structure of a core having a high porosity and a shell having a porosity lower than that of the core,
- wherein the calcium-based particles comprise first calcium-based particles having a maximum diameter of 10 nm to 500 nm, and second calcium-based particles having a maximum diameter of 1 μm to 10 μm.
Dependencies are inferred from the claim text.