Drug – bio-affecting and body treating compositions – Topical sun or radiation screening – or tanning preparations
Reexamination Certificate
2007-04-10
2007-04-10
Dodson, Shelley A. (Department: 1616)
Drug, bio-affecting and body treating compositions
Topical sun or radiation screening, or tanning preparations
C424S060000, C424S400000, C424S401000, C514S241000
Reexamination Certificate
active
10789750
ABSTRACT:
Cosmetic and dermatological formulations containing at least one UV-sensitive active ingredient have increased UV protection and have the active ingredient stabilized against decomposition through addition of at least one dialkyl naphthalate of the structural formulawherein R1and R2are selected independently of one another from the group consisting of branched and unbranched alkyl groups having between 6 and 24 carbon atoms, and at least one emulsifier, selected from the group consisting of phosphate and sulphate emulsifiers.
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Göppel Anja
Wendel Volker
Beiersdorf AG
Dodson Shelley A.
Greenblum & Bernstein P.L.C.
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