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Use of benzotriazole derivatives for photostabilisation
专利权人:
Bernd Herzog;Thomas Ehlis;Gilbert Kreyer;Stefan Müller;Peter König;Katja Quass;Jochen Giesinger
发明人:
Stefan Müller,Jochen Giesinger,Thomas Ehlis,Bernd Herzog,Peter König,Gilbert Kreyer,Katja Quass
申请号:
US11919104
公开号:
US08361446B2
申请日:
2006.04.20
申请国别(地区):
US
年份:
2013
代理人:
摘要:
Use of benzotriazole derivatives of formula (1), wherein R1 is C1-C30alkyl; C1C5alkoxy; C1-C5alkoxycarbonyl; C5-C7cycloalkyl; C6-C10aryl; aralkyl; —SO3M; a radical of formula (1a) R3 is hydrogen; C1C5alkyl; C1C5alkoxy; halogen, preferably Cl; or hydroxy; R4 and R5 are each independently of the other hydrogen; or d-C5alkyl; m is 1 or 2; n is O or 1; if m=1, R2 is hydrogen; unsubstituted or phenyl-substituted d-C1-C12alkyl; or C6-C10aryl; if m=2, R2 is the direct bond; or —(CH2)p—; and p is 1 to 3; for enhancing the photostability of cosmetic or dermatologic compositions comprising at least one further organic UV absorber.
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