Core-shell particles, and method for separating and purifying substance to be separated using core-shell particles

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United States of America Patent

PATENT NO 11913862
APP PUB NO 20210247278A1
SERIAL NO

16972857

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Abstract

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The present invention aims to provide core-shell particles that can be used in a method of separating a substance to be separated and that allow obtainment of a highly purified product. Each of a plurality of core-shell particles (C) of the present invention includes a core layer (P) as magnetic silica particles containing the magnetic metal oxide particles (A) and a shell layer (Q) that is a silica layer on a surface of the core layer (P), an average thickness of a plurality of shell layers (Q) being 3 to 3000 nm, wherein a weight percentage of the magnetic metal oxide particles (A) in the core layer (P) is 60 to 95 wt % based on a weight of the core layer (P), and the plurality of core-shell particles (C) have a particle size distribution with a coefficient of variation of 50% or less.

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Patent Owner(s)

Patent OwnerAddress
SANYO CHEMICAL INDUSTRIES LTDKYOTO-SHI KYOTO 605-0995

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kitagawa, Takahiro Kyoto, JP 29 103
Ueda, Masumi Kyoto, JP 5 0

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