Patent ID: 9200938
Filing Date: 2015-12-01
Classification: B01F,B01J,G01F

Abstract:
1. An apparatus for producing microdroplets using microchannels, said apparatus comprising a microchannel board and a holder for retaining the microchannel board, wherein the microchannel board has a microdroplet-outlet port formed at the center thereof, microdroplet-forming parts on a first to a Mth (M is an integer of 1 or more) annular or polygonal peripheries from inside to outside, said parts being connected through the microchannels to the microdroplet-outlet port and a plurality of said parts being disposed on each of M annular or polygonal peripheries with the microdroplet-outlet port at the center, inlet ports for a first liquid disposed on annular or polygonal peripheries with the microdroplet-outlet port at the center, inlet ports for liquids up to a Nth liquid (N is an integer of 2 or more, M≦N−1) sequentially disposed on annular or polygonal peripheries further outside of the above peripheries, and microchannels for feeding the first to the Nth liquids to the above plurality of microdroplet-forming parts, and the holder for retaining the microchannel board has a coaxial multitube structure, with the microdroplet-outlet port as the central axis, having N annular or polygonal annular channels for allocating the even flow rate of the above first to the Nth liquids to the inlet port for each liquid of the microchannel board, wherein N=2 (simultaneously M=1), the first liquid is a dispersion phase, and the second liquid is a continuous phase, and the holder for retaining the microchannel structure has a third component which is disposed under the microchannel board and which is equipped with an inlet port for the continuous phase, a second component which is equipped with an inlet port for the dispersion phase and which forms annular or polygonal annular channels for feeding the continuous phase to the microchannel board in combination with the above third component, and a first component which forms a annular path for feeding the dispersion phase to the microchannel board in combination with the above second component and which is equipped, at the center thereof, with a cylinder having an outlet port for microdroplets from the microchannel board, wherein the first and second components are placed beneath the third component, and the first component is placed beneath the second component.