Drug – bio-affecting and body treating compositions – Topical sun or radiation screening – or tanning preparations
Reexamination Certificate
2007-12-25
2007-12-25
Dodson, Shelly A. (Department: 1616)
Drug, bio-affecting and body treating compositions
Topical sun or radiation screening, or tanning preparations
C424S060000, C424S400000, C424S401000
Reexamination Certificate
active
10804676
ABSTRACT:
Disclosed is the use of the compounds of formulawhereinA is a radical of formulaR1and R5independently from each other are hydrogen; C1-C18alkyl; or C6-C12aryl;R2, R3and R4independently from each other are hydrogen; or a radical of formulawherein, in formula (1a), at least one of the radicals R2, R3and R4are a radical of formula (1c);R6, R7, R8, R9and R10independently from each other are hydrogen; hydroxy; halogen; C1-C18alkyl; C1-C18alkoxy; C6-C12aryl; biphenylyl; C6-C12aryloxy; C1-C18alkylthio; carboxy; —COOM; C1-C18-alkylcarboxyl; aminocarbonyl; or mono- or di-C1-C18alkylamino; C1-C10acylamino; —COOH;M is an alkali metal ion;x is 1 or 2; andy is a number from 2 to 10;for the protection of human and animal hair and skin against the damaging effect of UV radiation.The compounds of formula (1) are high effective UV absorbers for cosmetic formulations aund can be—depending on their physical properties be used in micronized or soluble form.
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Ehlis Thomas
Hayoz Pascal
Müller Stefan
Ciba Specialty Chemicals Corporation
Dodson Shelly A.
Mensfield Kevin T.
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