Surfactant-free water-in-oil emulsion

Details Surfactant-free water-in-oil emulsion Surfactant-free water-in-oil emulsion

1995-06-06

1997-07-01

Glass, Margaret W.

Drug, bio-affecting and body treating compositions

Topical sun or radiation screening, or tanning preparations

424 63, 424 70121, 524837, A61K 7021

Patent

active

056435550

ABSTRACT:
An emulsion of an aqueous phase in an oily phase free from surfactant, containing finely divided solid spherical particles of polyalkylsilsesquioxane which ensure the dispersion of the aqueous phase in the oily phase.

REFERENCES:
patent: 4892726 (1990-01-01), Yonekura et al.
patent: 5036108 (1991-07-01), Asahi et al.
S. Levine, "Stabilization of Emulsions by Fine Particles I. Partitioning of Particles Between Continuous Phase and Oil/Water Interface", Colloids and Surfaces, vol. 38, 1989, pp. 325-343.
Patent Abstracts of Japan, vol. 14, No. 30 (C-678) (3973), Jan. 19, 1990 & JP-A-01 268 615 (KAO Corporation) Oct. 26, 1989, (one page).
S. Magdassi, "Chitin Particles as O/W Emulsion Stabilizers", J. Dispersion Science and Technology, vol. 11, No. 1, 1990, pp. 69-74.
Hawley's Condensed Chemical Distionary, pp. 461, 566 and 567 1993.

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