SILICA PARTICLE, TONER FOR DEVELOPING ELECTROSTATIC CHARGE IMAGE, ELECTROSTATIC CHARGE IMAGE DEVELOPER, TONER CARTRIDGE, IMAGE FORMING APPARATUS, AND IMAGE FORMING METHOD

A silica particle is provided in which a pore size distribution curve obtained by nitrogen gas adsorption of the silica particle after baking at 350°C has at least one peak at a pore diameter of 2 nm or less and at least one peak at a pore diameter of more than 2 nm and 50 nm or less, and D/B is 0.5...

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Main Authors MOCHIDA, Mai, TAKEUCHI, Sakae, SEKI, Mieko, NOHARA, Kota, SUGAHARA, Hajime, ZENITANI, Yuka
Format Patent
LanguageEnglish
French
German
Published 17.07.2024
Subjects
CHEMISTRY
CINEMATOGRAPHY
COMPOUNDS THEREOF
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
INORGANIC CHEMISTRY
MAGNETOGRAPHY
METALLURGY
NON-METALLIC ELEMENTS
PHOTOGRAPHY
PHYSICS
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Summary:A silica particle is provided in which a pore size distribution curve obtained by nitrogen gas adsorption of the silica particle after baking at 350°C has at least one peak at a pore diameter of 2 nm or less and at least one peak at a pore diameter of more than 2 nm and 50 nm or less, and D/B is 0.50 or greater and 2.50 or less, where D and B are the volumes of pores having a diameter of 2 nm or less and a diameter of 2 nm or more and 25 nm or less, respectively, determined from the pore size distribution curve obtained by nitrogen gas adsorption of the silica particle after baking at 350°C.
Bibliography:Application Number: EP20230198500