Abstract: A method for controlling a particle diameter and a particle diameter distribution of emulsion particles during manufacturing of an emulsion dispersion is provided. The method includes causing two or more types of liquids substantially immiscible with each other to continuously and sequentially pass through net bodies. The net bodies are disposed in a cylindrical flow passage at intervals of 5 to 200 mm, and the number of the net bodies is more than 50 and 200 or less. Each of the net bodies is equivalent to a gauze having a mesh number of 35 mesh to 4000 mesh in accordance with an ASTM standard and has a surface that intersects the direction of the flow passage. An emulsification apparatus used for the method includes a feed pump for feeding two or more types of liquids substantially immiscible with each other; and a cylindrical flow passage to which the two or more types of liquids fed by the feed pump are delivered.

Abstract: The present invention relates to an emulsification method and an emulsification apparatus, capable of attaining easy control of particle size and particle size distribution, and simple scale-up and maintenance, and providing an emulsifying amount sufficient for industrial production. Namely, the method comprises continuously and successively passing two or more types of liquids which are substantially immiscible with each other through two or more mesh members disposed at certain intervals in the presence of an emulsifier to thereby perform emulsification, and the emulsification apparatus as an apparatus for carrying out the method comprises liquid feed pumps for feeding two or more types of liquids which are substantially immiscible with each other, and a cylindrical flow passage to which the two or more types of liquids are fed by the liquid feed pumps, the cylindrical flow passage including a predetermined number of wire gauzes disposed therein at a predetermined interval.

Abstract: A method for controlling a particle diameter and a particle diameter distribution of emulsion particles during manufacturing of an emulsion dispersion is provided. The method includes causing two or more types of liquids substantially immiscible with each other to continuously and sequentially pass through net bodies. The net bodies are disposed in a cylindrical flow passage at intervals of 5 to 200 mm, and the number of the net bodies is more than 50 and 200 or less. Each of the net bodies is equivalent to a gauze having a mesh number of 35 mesh to 4000 mesh in accordance with an ASTM standard and has a surface that intersects the direction of the flow passage. An emulsification apparatus used for the method includes a feed pump for feeding two or more types of liquids substantially immiscible with each other; and a cylindrical flow passage to which the two or more types of liquids fed by the feed pump are delivered.

Abstract: An anti-blocking agent master batch is provided, obtained by compounding 100 parts by mass of a polyolefin-based resin with 1 to 40 parts by mass of polymer fine particles, the polymer fine particles obtained by: causing two or more fluids including a liquid medium, a monomer or monomers, and a polymerization initiator to continuously and successively pass through a plurality of net bodies which are disposed at given intervals in a cylindrical passage and each have a surface crossing a direction of the passage to obtain an emulsion including liquid droplets containing the monomer or monomers and the polymerization initiator, the liquid droplets being dispersed in the liquid medium; and heating this emulsion to polymerize the monomer or monomers. Also provided is a manufacturing method thereof.

Abstract: The present invention relates to an emulsification method and an emulsification apparatus, capable of attaining easy control of particle size and particle size distribution, and simple scale-up and maintenance, and providing an emulsifying amount sufficient for industrial production. Namely, the method comprises continuously and successively passing two or more types of liquids which are substantially immiscible with each other through two or more mesh members disposed at certain intervals in the presence of an emulsifier to thereby perform emulsification, and the emulsification apparatus as an apparatus for carrying out the method comprises liquid feed pumps for feeding two or more types of liquids which are substantially immiscible with each other, and a cylindrical flow passage to which the two or more types of liquids are fed by the liquid feed pumps, the cylindrical flow passage including a predetermined number of wire gauzes disposed therein at a predetermined interval.