Ionic UV-A sunscreens and compositions containing them

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

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Details

C546S339000, C546S022000, C424S617000, C424S663000, C424S669000, C424S677000, C424S678000, C424S679000, C424S680000, C424S681000

Reexamination Certificate

active

07897779

ABSTRACT:
The present invention relates to novel 1,4-dihydropyridine derivatives, to novel cosmetic or dermatological sunscreen compositions containing these derivatives and the use of these derivatives for photoprotecting human skin and/or hair against UV radiation, in particular solar radiation.

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Urayama et al., “New Organic Conductors Based On AzaTCNQ,”Synthetic Metals, vol. 19, pp. 469-474, XP-002327953 (1987).
Matsubayashi et al., “Preparation and Properties of AzaTCNQ- Anion Salts and Mixed AzaTCNQ-/ TCNQ-/TCNQ Salts of some Tetrakis(isocyanide)rhodium(I) Cation, and X-Ray Crystal Structure of the AzaTCNQ—Tetrakis(2,6-dimethylphenyl-isocyanide)rhodium(I)+ Salt,”Inorganica Chimica Acta, vol. 63, pp. 217-224, XP-002327952 (1982).

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