Drug – bio-affecting and body treating compositions – Topical sun or radiation screening – or tanning preparations
Patent
2000-01-24
2000-10-03
Dodson, Shelley A.
Drug, bio-affecting and body treating compositions
Topical sun or radiation screening, or tanning preparations
424 60, 424400, 424401, A61K 742, A61K 744, A61K 700
Patent
active
061269255
ABSTRACT:
A sunscreen composition containing a UV-A dibenzoylmethane derivative, such as 4-(1,1-dimethylethyl)-4'-methoxydibenzoylmethane (PARSOL.RTM. 1789), and a stabilizer for the dibenzoylmethane derivative having structure (I): ##STR1## wherein each R', same or different, is an alkyl group, straight or branched chain, having 1 to 22 carbon atoms. These diesters of structure (I) are quite effective in stabilizing the dibenzoylmethane derivative UV-A filter compounds making them more effective, and effective for longer periods of time.
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"Photostable Cosmetic Light Screening Composition", Author: Anon. Organization, UK Publication Source, Research Disclosure (1999), 418(Feb.), P175 (No. 41803). Identifier-CODEN RSDSBB ISSN 0374-4363Publisher Kenneth Mason Publications Ltd. Patent Information.
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STN, File Supplier, Karlsruhe, DE, File Chemical Abstracts, vol. 130, AN=158258 see the abstract XP002126186 & Research Disclosure, No. 418003, (Feb. 10, 1999), p. 175 UK the whole document.
Bonda Craig A.
Hessefort Yin Z.
Marinelli Peter J.
Trivedi Jagdish
Wentworth Gary
Dodson Shelley A.
The C. P. Hall Company
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