Arylpolyenecarboxylic acids and their derivatives as sunscreen agents in cosmetic preparations

US5320833A · kind A · utility

Assignee

• BASF SE

Inventors

• Gabriele Deckers · Ludwigshafen, DE
• Rainer Becker · Bad Dürkheim, DE
• Bernd Wenderoth · Lampertheim, DE
• Norbert Goetz
• Karin Sperling-Vietmeier · Neustadt, DE

Key dates

• Filing date: Sep 23, 1991
• Grant date: Jun 14, 1994
• Expiry date: Sep 23, 2011

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D317/30
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Arylpolyenecarboxylic acids and their derivatives of the formula I ##STR1## where Ar is phenyl, biphenylyl or naphthyl, each of which can be substituted by one to three C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, hydroxyl or phenoxy groups, or amino groups which can be mono- or di-substituted by C.sub.1 -C.sub.4 -alkyl groups, or one methylenedioxy group, it being possible for the substituents to be identical or different, PA1 R.sup.1 is hydrogen, an alkali metal or ammonium cation, C.sub.1 -C.sub.20 -alkyl or C.sub.2 -C.sub.20 -alkenyl, PA1 R.sup.2 is C.sub.1 -C.sub.8 -alkyl, PA1 R.sup.3 to R.sup.7 are each hydrogen or C.sub.1 -C.sub.4 -alkyl, and PA1 n is 0 or 1 are used as sunscreen agents in cosmetic preparations.