DISPERSION COMPOSITION PRODUCTION METHOD

WIPO Patent Application WO/2023/149488

A1

Provided is a dispersion composition production method which uses a dispersion device comprising: a dispersion mechanism which disperses a raw material composition; a feed mechanism which is equipped with a plunger part and which supplies the raw material composition to the dispersion mechanism; and a cooling mechanism which cools the plunger part using a cooling liquid medium. The raw material composition contains a non-aqueous dispersion medium and a dispersoid. The cooling liquid medium is a liquid medium that results in 0-50 particles having a particle size of 10 μm or more in the flocculation test indicated below.　(Flocculation Test) A method comprising: dispersing a composition identical to the raw material composition using either a bead mill or a high-pressure homogenizer; preparing a test dispersion liquid having a particle size of less than 10 μm as measured with a grind meter (0-100 μm); preparing a test sample by mixing the test dispersion liquid and the cooling liquid medium at a mass ratio of 1:1; and identifying the number of particles having a particle size of 10 μm or more using the grind meter (0-100 μm) in the test sample.

MASUOKA TOMOAKI (JP)
AOTANI YU (JP)

PCT/JP2023/003286

August 10, 2023

February 01, 2023

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TOYO INK SC HOLDINGS CO LTD (JP)
TOYOCOLOR CO LTD (JP)

B01F23/50; B01F35/10; B01F35/71; B01F35/90; C09K23/00

JPH0514569U	1993-02-26
JPH0643277U	1994-06-07
JPH07328405A	1995-12-19
JP2019173655A	2019-10-10
JP2016211404A	2016-12-15
JP2005131568A	2005-05-26

MIYOSHI Hidekazu et al. (JP)

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