Titanium dioxide-based sunscreen compositions

Details Titanium dioxide-based sunscreen compositions Titanium dioxide-based sunscreen compositions

1993-04-30

1996-03-12

Dodson, Shelley A.

Drug, bio-affecting and body treating compositions

Topical sun or radiation screening, or tanning preparations

424 60, A61K 742, A61K 744, A61K 748, A61K 912

Patent

active

054984068

ABSTRACT:
A sunscreen composition in oil-in-water emulsion form comprising cosmetically acceptable oil and water phases and having substantially uniformly suspended therein from about 1% to about 5%, by weight, of microfine TiO.sub.2 having a particle size of less than about 100 nm, the composition further comprising a dispersing agent in an amount sufficient to stabilize the emulsion, the dispersing agent comprising a member selected from the group consisting of a long chain saturated primary alcohol, a derivative thereof or a mixture thereof, the member having an average of from about 25 to about 45 carbon atoms in the long chain.

REFERENCES:
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patent: 4960592 (1990-10-01), Hagen et al.
patent: 4997641 (1991-03-01), Hartnett et al.
patent: 5000937 (1991-03-01), Grollier et al.
patent: 5028417 (1991-07-01), Bhat et al.
patent: 5051250 (1991-09-01), Patel et al.
patent: 5106613 (1992-04-01), Hartnett et al.
patent: 5116604 (1992-05-01), Fogel et al.
patent: 5207998 (1993-05-01), Robinson et al.
patent: 5213716 (1993-05-01), Patel et al.
patent: 5216033 (1993-06-01), Pereira et al.
Unilin Alcohols (Petrolite Specialty Polymers Group), 1985, Petrolite Corp.

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