Preparation of aqueous emulsions

Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Capsules

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424490, 424496, 264 41, 514963, A01N 2528

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active

060175591

ABSTRACT:
A method of controlling the particle size and particle size distribution of an aqueous emulsion having a non-aqueous disperse phase during the production thereof, in which the production of the emulsion is carried out in the presence of a dispersion of a templating agent, such as a polymer latex, and surfactant
Particle size and particle size distribution of the dispersion is controlled by selecting the templating agent and surfactant such as to cause deposition of the disperse phase on particles of the dispersed templating agent, such that the particle size distribution of the templating agent provides a template for the particle size distribution of the final emulsion.

REFERENCES:
patent: 4677003 (1987-06-01), Redlich et al.
patent: 5025004 (1991-06-01), Wu et al.
patent: 5925464 (1999-07-01), Mulqueen et al.
Pesticide Science, vol. 29, No. 4, 1990, pp. 451-465, P.J. Mulqueen, et al., "Recent Development in Suspoemulsions".
U.K. Search Report; Oct. 17, 1994.
International Search Report; Nov. 29, 1995.

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