2-(2-hydroxyphenyl)-benztriazoles, their use as uv-...

Details 2-(2-hydroxyphenyl)-benztriazoles, their use as uv-... 2-(2-hydroxyphenyl)-benztriazoles, their use as uv-...

C - Chemistry, Metallurgy

07

D

260/313.1, 260/2

C07D 249/20 (2006.01) C07D 403/10 (2006.01) C08K 5/34 (2006.01) C08K 5/3475 (2006.01) C09D 7/12 (2006.01) G03C 1/815 (2006.01)

Patent

CA 1197246

2-(2-Hydroxyphenyl)-benztriazoles, their use as UV- absorbers and their preparation Abstract The novel UV-absorbers are compounds of the formula I Image (I) in which R1 is, for example, hydrogen, n is one of the numbers 1 or 2 and R2 is an appropriate monovalent or divalent radical, for example -OH or -O-CH2CH2-O-. The UV-absorbers are used in particular for stabilising and improving lacquers and photographic material.

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