Benzene and naphthylene derivatives and their use as UV...

Details Benzene and naphthylene derivatives and their use as UV... Benzene and naphthylene derivatives and their use as UV...

2006-09-19

2006-09-19

Saeed, Kamal A. (Department: 1626)

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

Reexamination Certificate

active

07109376

ABSTRACT:
Methods for making UV screening compositions by combining 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 with a cosmetic base. Methods of protecting a surface from UV radiation by applying a UV screening agent of formula I to a surface such as hair or skin.

REFERENCES:
patent: WO 98/16587 (1998-04-01), None
Ueno et al., STN International, HCAPLUS Database, Columbus, OH, Accession No. 1998:251223 (2006).

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