Precise modifying method for fine particle dispersion liquid

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United States of America Patent

PATENT NO 11111145
APP PUB NO 20190031509A1
SERIAL NO

16074665

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Abstract

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A method for modifying a fine particle dispersion liquid with which dispersibility and dispersion stability can be improved includes performing filtration to remove impurities in a dispersion liquid using a dispersion liquid modifying device provided with a removal unit that uses a filtration membrane. The quantity of impurities is reduced from a first region until said quantity reaches a second pH-dependent region. In the second pH-dependent region, the dispersibility of the fine particles in the dispersion liquid is in a range in which the dispersibility depends more on a change in dispersion liquid pH than on a change in the quantity of impurities in the dispersion liquid. With the quantity of impurities reduced to the second pH-dependent region, the dispersibility of the fine particles is controlled by adjusting the pH of the fine particle dispersion liquid.

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Patent Owner(s)

Patent OwnerAddress
M TECHNIQUE CO LTDIZUMI-SHI OSAKA 594-1144

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Enomura, Masakazu Izumi, JP 124 456
Honda, Daisuke Izumi, JP 90 300

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