Process for the preparation of oil-in-water emulsions

Details Process for the preparation of oil-in-water emulsions Process for the preparation of oil-in-water emulsions

1984-05-07

1985-09-03

Lovering, Richard D.

Compositions

Preservative agents

Anti-corrosion

252312, 366168, 430377, B01J 1300

Patent

active

045391394

ABSTRACT:
A process for preparing an oil-in-water emulsion is described, comprising the steps of: adding a mixture of a hydrophobic substance and an emulsifying agent directly or after being dissolved in an organic solvent by heating in a dissolving-emulsifying tank with a high-speed agitation type dispersing means to form a hydrophobic substance solution as an oil phase, introducing water and/or an aqueous solution of gelatin into the tank through submerged inlet under the hydrophobic substance solution to form a water-in-oil emulsion, and further continuing the addition of water and/or an aqueous solution of gelatin to cause the phase inversion, whereupon the desired oil-in-water emulsion is formed. The mean particle size of the emulsion is decreased more than by the conventional emulsification method, and the particle size distribution is narrowed and made sharp.

REFERENCES:
patent: 328585 (1885-10-01), Hornbostel
patent: 4349455 (1982-09-01), Yamamura et al.
Weiser: A Textbook of Colloid Chemistry, Second Edition, John Wiley & Sons, Inc., New York, 1949, pp. 343 and 344.

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