Drug – bio-affecting and body treating compositions – Effervescent or pressurized fluid containing – Organic pressurized fluid
Patent
1992-03-20
1995-02-28
Ore, Dale R.
Drug, bio-affecting and body treating compositions
Effervescent or pressurized fluid containing
Organic pressurized fluid
424 59, 424 60, 514847, 514938, A61K 742, A61K 744, A61K 748, A61K 912
Patent
active
053935152
ABSTRACT:
The invention relates to a photostable filtering emulsion containing in association, in the aqueous phase, a photostable filter with a wide absorption band constituted by partially or totally neutralized benzene-1,4-[di(3-methylidene-10-camphosulphonic)] acid, and in the oily phase a photostable system which filters the UV-A rays containing at least one of the following compounds: N-(2-ethylhexyl)-3-[(3'-methoxy-4'-n-butoxy)benzylidene]-10-camphosulphona mide (compound 2), 4-(1,1-dimethylethyl)-4'-methoxydibenzoylmethane (compound 3) and 4-isopropyldibenzoylmethane (compound 4), these two latter compounds 3 and 4 being photochemically stabilized by at least one fat-soluble filter of .lambda..sub.max less than 330 nm chosen from the following benzylidene camphor derivatives: benzylidene camphor (compound 5), p-methylbenzylidene camphor (compound 6), N-(2-ethylhexyl)-4-(3'-methylidene camphor)benzene sulphonamide (compound 7) and 3-methoxy-4-n-butoxybenzylidene camphor (compound 8).
This composition is intended to protect the skin from UV rays of wavelengths between 280 and 380 nm.
REFERENCES:
patent: 4804531 (1989-02-01), Grollier
"L'Oreal"
Ore Dale R.
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