| 摘要 |
PURPOSE:To obtain the title high-grade polymer suitable as, e.g., an additive for cosmetics, toners, etc., by discharging a monomer or an oligomer in the form of fine particles by giving a varied flow rate by applying an alternating voltage to a pressure element, dispersing the fine particles by applying thereto electric charges and curing or polymerizing the particles. CONSTITUTION:A feed solution comprising a monomer comprising an epoxy compound or its oligomer, a curing agent comprising an amine compound and a solvent and having an electric conductivity >=10<-3>OMEGAcm<-1> is sent from a feed tank 10 through a means 11 for pressurization, such as a booster pump, and a pipe 12 at a pressure of 1-20kg/cm<2> to a nozzle member 20 and this nozzle is filled with this solution to its fore end. In this state, a pressure element 22 is allowed to contract and expand alternately by applying thereto an alternating voltage of a frequency of 10,000-200,000Hz/s through a means 23 for applying an alternating voltage, whereupon the monomer stream discharged from the fore end of the nozzle can be given a varied flow rate and is discharged outward to form fine particles of uniform particle diameters. At the same time, these particles are dispersed by a application of a D.C. voltage of 1,000-10,000V through a means 24 for applying electric charges, received by a fine particle receiver 30 and cured or polymerized to obtain a fine particulate polymer of a diameter of several to several hundreds mu. |
