Bleaching agent having cationic acyl pyridinium derivatives,...

Bleaching and dyeing; fluid treatment and chemical modification – Bleaching

Reexamination Certificate

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C008S107000, C008S109000, C008S111000

Reexamination Certificate

active

07981166

ABSTRACT:
Agent for bleaching keratin fibers comprising in a cosmetic carrier at least one cationic acyl pyridinium derivative of formula (I)where R is a C1-C6-alkyl group, a C2-C6-alkenyl group, a C2-C6-hydroxy alkyl group, a C1-C6-alkoxy-C2-C6-alkyl group, a carboxy-C1-C6-alkyl group, an aryl-C1-C6-alkyl group, a C1-C6-dialkylamino-C2-C6-alkyl group, a heteroaryl-C1-C6-alkyl group, a 3-oxobutyl group, a 2-oxopropyl group, an aryl group, or a heteroaryl group, R′ is a C1-C4-alkyl group, a C2-C6-hydroxy alkyl group, or a C1-C6-alkoxy-C2-C6-alkyl group, X−is a physiologically compatible anion, at least one toxicologically safe co-bleaching activator and/or the physiologically compatible salt thereof, and hydrogen peroxide.

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STIC Search Report dated Feb. 23, 2011.
Schrader, Karlheinz. Grundlagen und Rezepturen der Kosmetika (Fundamentals and Formulations of Cosmetics), 2, Hüthig Buch Verlag GmbH, Heidelberg 1989.
Umbach, W. Kosmetik: Entwicklung, Herstellung und Anwendung kosmetischer Mittel, Georg Thieme Verlag, 1995.
Römp-Lexikon. Chemie. George Thieme Verlag, vol. 10, 1997, p. 1764.

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