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US5501850A Use of benzimidazole derivatives as light protection filters 失效
苯并咪唑衍生物作为防光过滤器

Use of benzimidazole derivatives as light protection filters
摘要:
The invention relates to the use of benzimidazole derivatives of the formula I, ##STR1## where R.sup.1, R.sup.2, R.sup.3, R.sup.4 and Ar have the meaning given in claim 1, as light protection filters in cosmetic formulations, at least one of the radicals R.sup.1 to R.sup.4 or an alkyl or alkoxy substituent of the group Ar containing at least 4 C atoms.
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