Method of producing emulsions and an emulsification apparatus
AssigneeNippon Shinyaku Co., Ltd.
InventorsAkira Saheki, Junzo Seki
Life of this patent
Estimating the term…
Abstract
There is provided a method of producing an emulsion by which an emulsion consisting of uniform and microfine globules can be easily obtained with a reduced energy input as compared with the conventional technology. This method of producing an emulsion comprises applying a back pressure equal to not less than 0.2% but less than 5% of the pressure acting on the point of high-pressure emulsifying action in a high-pressure emulsification zone in the course of production of an emulsion with a high-pressure emulsification equipment. The back pressure can be obtained typically by equipping an emulsification machine with a pipeline smaller in inside diameter than the discharge line of the machine.
Claims10
In a method of producing an emulsion or liposome in which the materials that will form the emulsion or liposome are subjected to high pressure as they flow in a first direction through a high-pressure emulsification zone to thus form the resultant emulsion or liposome, the improvement which comprises applying a back pressure to said high-pressure emulsification zone in a direction reverse to said first direction in an amount of not less than 0.2%, but less than 5%, of said high pressure in said emulsification zone.
In a high-pressure emulsification apparatus, comprising a high-pressure emulsification zone, means for feeding emulsifiable or liposome-forming materials through said emulsification zone in a first direction and means for applying a high pressure to said materials as they flow through said emulsification zone, the improvement which comprises means capable of and adapted to apply a back pressure to said emulsification zone in a direction reverse to said first direction only in an amount between 0.2% and less than 5% of said high pressure in said emulsification zone, an outlet downstream of said emulsification zone through which said emulsion or liposome exits said apparatus and a passageway between said emulsification zone and said outlet.
Dependencies are inferred from the claim text.