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US 4,489,057 AGranted
U.V. Absorbing cosmetic compositions
AssigneeMerck Patent Gesellschaft mit beschraenkter Haftung
InventorsReiner Welters, Juergen Gehlhaus, Gernot Moeschl
Life of this patent
Estimating the term…
Abstract
Cosmetic compositions containing dibenzoylmethane compounds of the formula ##STR1## wherein R and R.sup.1 are straight-chain or branched alkyl of 1-8 carbon atoms, n an integer from 0-3 and n' an integer from 1-3, dissolved in the fatty components of said composition have superior sun-protection efficiency.
Claims4
A cosmetic composition containing a U.V. absorbing effective concentration of 4-isopropyldibenzoylmethane dissolved in the fatty components of a cosmetically acceptable oil, emulsion, cream, ointment or aerosol carrier adapted for application to human skin.
Dependencies are inferred from the claim text.