PRODUCTION OF AQUEOUS DIPERSION OF FLUOROACRYLIC RESIN

Japanese Patent JP3398995

B2

PURPOSE: To readily obtain an aqueous fluoroacrylic resin dispersion having fine particle diameter and uniform particle diameter distribution and excellent in stability under condition of an amount of emulsifying agent reduced compared with conventional method by emulsifying a previously emulsified mixed liquid using a specific emulsifying device.
CONSTITUTION: A previously emulsified mixed liquid consisting of water and a fluoroalkyl (meth)acrylate monomer is introduced into a flow path in a chamber of an emulsifying device under pressure and the mixed liquid is allowed to collide with a flat part in the flow path or with each other under high pressure to emulsify the mixed liquid. Then, the resultant monomer emulsion is polymerized to provide the objective dispersion. Concretely, e.g. a previously emulsified mixed liquid fed to a suppressing part 1 in a chamber under pressure is introduced into a disk 3 and directly allowed to collide with the flat part 5 of a disk 4 and collided liquid is allowed to flow to a connecting groove 6 of the disk 3 on the side contacting with the disk 4 while accelerating the liquid and these liquid are allowed to collide with each other in the center of the disk 3 to disperse emulsify the mixed liquid.

Hiroyuki Hidaka
Masayuki Kamei
Yoshifumi Tamaki
Yasuyuki Suzuki

JP256793A

April 21, 2003

January 11, 1993

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Dainippon Ink and Chemicals Co., Ltd.

B01F3/08; C08F2/00; C08F2/18; C08F20/22; C08F20/24; C08L33/16; (IPC1-7): C08L33/16; B01F3/08; C08F2/18; C08F20/24

JP5658530A
JP52151676A
JP448925A
JP4126707A

Victory Takahashi

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