Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Reexamination Certificate
2006-03-28
2006-03-28
Saeed, Kamal A. (Department: 1626)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
C548S219000, C548S220000
Reexamination Certificate
active
07019020
ABSTRACT:
Novel benzoxazolyl benzene derivatives of formula (I):wherein R1is hydrogen, C1-20-alkyl or C2-20-alkenyl; R2and R3are independently a group —C(R4,R5)C(R6)═C(R7,R8) (a) or a group —C(R4′,R5′)CH(R6′)CH(R7′,R8′) (b), wherein R4, R5, R6, R7, R8, R4′, R5′, R6′, R7′and R8′are independently, hydrogen, C1-10-alkyl or C2-10-alkenyl, or C2-10-alkyl or C3-10-alkenyl containing at least one oxygen atom interrupting the hydrocarbon chain; or wherein R4, R5, R6, R4′, R5′and R6′are hydrogen, C1-10-alkyl or C2-10-alkyl containing at least one oxygen atom interrupting the hydrocarbon chain, or alkyl substituted by silane or oligosiloxane moiety, and one of R7and R8or R7′and R8′is a silane or oligosiloxane moiety and the other one of R7and R8or R7′and R8′is hydrogen; and X is phenylene or naphthylene, or substituted phenylene or naphthylene for use as UV screening agents for protecting human skin or hair against radiation, and in UV screening compositions, particularly topical compositions for cosmentic or dermatological use.
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Hirohashi, A., et al.,“Electrochromic Display Devices Containing Benzoxazole Derivatives,” Chemical Abstracts, vol. 110(20) Abstract No. 183044z (1989).
Derwent English language abstract of JP 63-286489.
Bryan Cave LLP
DSM IP Assets B.V.
Freistein Andrew B.
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