PURPOSE: To provide the title production process wherein a specified agitation tank is used, the deposition on the tank can be markedly reduced, the distribution of the particles of the emulsion is sharp, and the shapes of the particles are uniform.
CONSTITUTION: A process for producing an emulsion by emulsion-polymerizing a polymerizable monomer, which comprises performing the emulsion polymerization by using an agitation tank 2 composed of a vertical cylinder agitation tank 2 surrounded with a jacket for heat exchange, a vertical rotary shaft 3 in the center of the tank 2, a lower paddle 4 secured to the rotary shaft 3 near the bottom of the tank 2 and having the end shaped like a sweepback wing, and an upper paddle 5 having downwardly extending platy fins 6 at its lower end and a crossing angle α of 90 degrees with respect to the lower paddle 4, and preceding the paddle 4 in the direction of rotation.
JPS5926128 | APPARATUS FOR PREPARING DISPERSION LIQUID DROPLETS |
JP3042999 | MULTIPHASE EMULSION AND ITS PRODUCTION |
WO/2003/067082 | DISPOSAL OF WASTE FLUIDS |
DOI KIYOTO
OKADA KATSUYOSHI
KUSAKABE SHIGENORI