Titanium dioxide dispersions, cosmetic compositions and methods

Details Titanium dioxide dispersions, cosmetic compositions and methods Titanium dioxide dispersions, cosmetic compositions and methods

1994-08-19

1995-11-21

Henley, III, Raymond

Drug, bio-affecting and body treating compositions

Topical sun or radiation screening, or tanning preparations

514772, 514784, 514785, 514786, A61K 742, A61K 4700

Patent

active

054684714

ABSTRACT:
A novel organic dispersion comprises microfine titanium dioxide and a suitable branched chain organic without the use of any dispersing agent. The novel dispersion provide uniquely high SPF with low levels of dry weight titanium dioxide. Methods for preparing said dispersion and cosmetic sunscreen compositions comprising said dispersion are also included within the invention.

REFERENCES:
patent: 4927464 (1990-05-01), Cowie
patent: 5028417 (1991-07-01), Bhat et al.
patent: 5032390 (1991-07-01), Iwaya et al.
patent: 5188831 (1993-02-01), Nicoll et al.
Alexander, P., "Ultrafine Titanium Dioxide Makes the Grade", Manufacturing Chemist 62(7):21-23 (1991).
Fox, C., "Cosmetic Raw Materials: Literature and Patent Review 1989-1991", Cosmetics & Toiletries 106: 69-87 (1991).
Brown, M. W. and Galley, E., "Testing UVA and UVB Protection From Microfine Titanium Dioxide", Cosmetics & Toiletries 105: 69-73 (1990).
Fox, C., "Cosmetic Raw Materials: Literature and Patent Review 1988-1990", Cosmetics & Toiletries 105: 77-96 (1990).
Diffey, B. L. and Robson, J., "A New Substrate to Measure Sunscreen Protection Factors Throughout the Ultraviolet Spectrum", J. Soc. Cosmet. Chem. 40: 127-133 (1989).
Klein, K., "Formulating Effective Yet Elegant Sunscreen Products", DCI, pp. 22-30 (Aug. 1989).

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