2-(2-hydroxy-3-.alpha.-cumyl-5-alkylphenyl)-2h benzotriazoles

Details 2-(2-hydroxy-3-.alpha.-cumyl-5-alkylphenyl)-2h benzotriazoles 2-(2-hydroxy-3-.alpha.-cumyl-5-alkylphenyl)-2h benzotriazoles

C - Chemistry, Metallurgy

07

D

C07D 249/20 (2006.01) B41M 5/46 (2006.01) B41M 5/52 (2006.01) C08K 5/3475 (2006.01) C09D 11/00 (2006.01) C09K 15/30 (2006.01) G03C 1/815 (2006.01) G03F 7/031 (2006.01)

Patent

CA 2174411

Benzotriazole UV absorbers typified by those of formula I (see formula I) where R is tert-octyl, nonyl or dodecyl or -CH m CH2m COOR4 where R4 is alkyl and m is 1 to 4, provide excellent light stability protection to organic substrates.

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